CN115730854A - Evaluation method for ecological service function of ancient town in south of Yangtze river - Google Patents
Evaluation method for ecological service function of ancient town in south of Yangtze river Download PDFInfo
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- 238000011156 evaluation Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 15
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- 230000000694 effects Effects 0.000 claims description 23
- 238000012423 maintenance Methods 0.000 claims description 21
- 238000004887 air purification Methods 0.000 claims description 17
- 239000002352 surface water Substances 0.000 claims description 15
- 238000001704 evaporation Methods 0.000 claims description 13
- 230000008020 evaporation Effects 0.000 claims description 13
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 9
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
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- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 4
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Abstract
The invention relates to a method for evaluating ecological service functions of ancient towns in the south of the Yangtze river, which comprises the following steps: constructing a first-level index and a second-level index of a south China ancient town ecological service function evaluation index system, wherein the first-level index comprises product supply, ecological regulation and culture service; setting a characteristic calculation formula aiming at the characteristics of the secondary indexes, and calculating the ecological functional quantity of the secondary indexes; wherein the ecological regulation value is converted into the cost required for realizing ecological function quantity in a manual treatment mode, and the cost value reflects the value of the secondary index; and summarizing to obtain the evaluation result of the ecological service function of the ancient town in the south of the Yangtze river. The method realizes the quantitative evaluation of ecological products and service functions of the ancient town of the south of the Yangtze river, and provides decision basis for the planning design of ecological construction of the ancient town of the south of the Yangtze river; the ecological regulation function is converted into the cost required by realizing the same ecological function quantity by using other manual treatment measures, so that the evaluation result obtained by the method has objectivity and persuasion and high reliability.
Description
Technical Field
The invention belongs to the field of ecological environment protection, and particularly relates to a method for evaluating ecological service functions of ancient towns in the south of the Yangtze river.
Background
The value accounting of the ecological products is the fundamental work of ecological creation and engineering planning and design transformation. The value of the current ecological product mainly takes administrative areas of province, city, county and village or regional units of a forest, a lake and a marsh as accounting units. For a green open space with superior ecological background, the value accounting of ecological products of the green open space is lack of targeted accounting indexes and methods.
The prior art lacks an ecological value evaluation method for the ecological establishment and transformation project of the ancient town of the south of the Yangtze river, cannot objectively evaluate the value of ecological services provided by the ecological establishment and transformation project of the ancient town of the south of the Yangtze river, and is not beneficial to the overall planning of the construction of the ancient town of the south of the Yangtze river.
Disclosure of Invention
The invention aims to solve the problems, and provides an evaluation method for ecological service functions of the ancient town in the south of the Yangtze river, which aims at the ecological function quantity of the ancient town in the south of the Yangtze river, converts the ecological regulation function quantity of the ancient town in the south of the Yangtze river into cost required by other manual treatment measures to realize the same ecological function quantity, and reflects the value of the ecological function quantity with the cost to obtain ecological products and service function evaluation results of the ancient town in the south of the Yangtze river, so as to provide decision basis for planning and designing the ancient town in the south of the Yangtze river and guide the construction of the ancient town in the south of the Yangtze river.
The technical scheme of the invention is a method for evaluating ecological service functions of ancient towns in the south of the Yangtze river, which comprises the following steps:
step 1: constructing a first-level index and a second-level index of a south China ancient town ecological service function evaluation index system, wherein the first-level index comprises product supply, ecological regulation and culture service;
and 2, step: setting a characteristic calculation formula aiming at the characteristics of the secondary indexes, and calculating the ecological functional quantity of the secondary indexes;
and step 3: and (4) summarizing the index values in the step (2) to obtain the evaluation result of the ecological service function of the ancient town in the south of the Yangtze river.
Furthermore, the living house is a secondary index of product supply, and refers to the value of house products which are designed and built in ancient towns of the south of the Yangtze river and are used for living and living of external or moved personnel, have unified planning style and classical characteristics and are suitable for ecological environments of the ancient towns.
Preferably, the secondary indexes of ecological regulation comprise four secondary indexes of air purification, water quality maintenance, flood regulation and comfortable climate regulation.
The air purification means that a green space ecological system of the ancient town in the south of the Yangtze river absorbs, filters, blocks and decomposes sulfur dioxide, nitrogen oxide and particulate matters, reduces the content of various air pollutants and improves the air environment quality of a region; the air purification system is converted into artificial treatment to replace a green land ecosystem, and the treatment cost for maintaining good atmosphere is the value of the functional quantity of air purification.
The water quality maintenance means that aquatic plants and microorganisms in the water ecosystem in the ancient town of the south of the Yangtze river adsorb, degrade and absorb ammonia nitrogen and total phosphorus pollutants in the water body, the concentration of dissolved oxygen in the water body is improved and maintained, and various water bodies in the ancient town of the south of the Yangtze river are maintained and improved to reach the standard of surface water class IV or above; the water quality is maintained by converting the water quality into a manual treatment substitute water ecological system, and the manual treatment cost for maintaining and improving various water bodies to reach the standard of surface water above IV is the ecological service value of water quality maintenance.
The flood regulation refers to the functional capacity of farmland, lake rivers and forest shrubs in the ancient town of the south of the Yangtze river in the rainstorm period for reducing the runoff of the rainstorm; the construction cost of the artificial flood control facility for regulating and storing the flood stormwater with the same functional capacity is the value of the functional capacity of flood regulation.
The comfortable climate regulation means that the ancient town of the south of the Yangtze river absorbs heat through the transpiration of the vegetation in the green land and the evaporation process of the water surface of rivers and lakes to maintain the comfortable temperature in the range of the ancient town of the south of the Yangtze river; converted into the mode that the artificial air conditioner replaces greenbelt vegetation and the water surface of rivers and lakes to absorb heat of the same scale, the electricity cost is the value of the functional quantity of the comfortable climate regulation when the same comfortable temperature is maintained.
Preferably, the secondary indexes of the cultural service comprise five secondary indexes of leisure tourism, civilian services, hydrophilic activities, waterscape and literature performances and ecological health.
The leisure tourism is a secondary index of cultural service, and means that tourists are attracted to experience the life of the ecological ancient town of the south of the Yangtze river due to the unique fish-rice-water country landscape and the canal culture of the ancient town of the south of the Yangtze river, and the income brought by the tourism is the ecological service function value of the leisure tourism of the ancient town of the south of the Yangtze river.
The residential service is a secondary index of cultural service, and means that houses which are self-used by farmers or are built in ancient towns in the south of the Yangtze river and have characteristics of the ancient towns in the south of the Yangtze river are utilized, and living experiences and catering services of the residential and ancient towns in the south of the Yangtze river are provided by combining humanity, living resources and natural environments of the ancient towns in the south of the Yangtze river, and income brought by the residential and dining services is the ecological service value of the ancient towns in the south of the Yangtze river.
The hydrophilic activities are secondary indexes of cultural services, and refer to water activities of tourists, such as pleasure boats, water entertainment and the like, which are developed in ancient towns in the south of the Yangtze river by taking water bodies of rivers and lakes as carriers, and the obtained experience value of the tourists is the ecological service value of the hydrophilic activities of the ancient towns.
The waterscape artistic performance is a secondary index of cultural service, and refers to an immersive theater or an impression series of artistic performances built in ancient towns in the south of the Yangtze river by taking river and lake water bodies as carriers, and the obtained tourist experience value is the ecological service value of the ancient township artistic performance.
The ecological rehabilitation is a secondary index of cultural service, and means that the ecological rehabilitation community of the ancient town of the south of the Yangtze river, which is created by combining the landscape of the ancient town of the south of the Yangtze river, provides high-end rehabilitation service for vacation, rehabilitation and physical and mental experience of foreign tourists, and the obtained income is the ecological service value of the ecological rehabilitation of the ancient town of the south of the Yangtze river.
Further, ecological product and service value V of ancient town of south of the Yangtze river Ancient town of south of the Yangtze river Equal to the value V of the ecological product of the ancient peace living house in the south of the Yangtze river Hou Ecological service value V of air purification a Ecological service value V for maintaining water quality wp Ecological service value V of flood regulation and storage fm Ecological service value V for comfortable climate regulation tt Ecological service value V of leisure tourism in ancient town of south of the Yangtze river LT Ecological service value V of ancient civilian accommodation service Hs Ecological service value V of hydrophilic activities of ancient towns in south of the Yangtze river wa Ecological service value V of waterscape and literature performance TP Ecological service value V for ecological rehabilitation of ancient towns Hc The sum of the calculation formula is as follows:
the calculation formula of the ecological product and service value V of the ancient town in the south of the Yangtze river is as follows:
V ancient town of south of the Yangtze river ＝V Hou +V a +V wp +V fm +V tt +V LT +V Hs +V wa +V TP +V Hc
Compared with the prior art, the invention has the beneficial effects that:
1) The method realizes quantitative evaluation of ecological service functions of the ancient towns in the south of the Yangtze river, has objectivity in evaluation results, provides decision basis for planning and designing ecological construction of the ancient towns in the south of the Yangtze river, is favorable for enhancing ecological civilization construction of the ancient towns in the south of the Yangtze river, and improves the ecological product yield and ecological service level of the ancient towns in the south of the Yangtze river.
2) In the process of evaluating the ecological regulation function quantity of ancient towns in the south of the Yangtze river, the evaluation result is converted into the cost required by realizing the same ecological function quantity by using manual treatment measures, so that the evaluation result obtained by the method has objectivity and persuasion and high reliability;
3) The method establishes the ecological product and service function evaluation index system of the ancient town in south of the Yangtze river containing the primary index and the secondary index, has good universality, is suitable for evaluating the ecological function quantity of the ancient town in each place of the south of the Yangtze river, and is widely popularized and used in places such as Jiangzhe and the like.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a schematic diagram of an evaluation index system for ecological service functions in ancient towns in the south of the Yangtze river according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, the evaluation method of ecological service function in ancient town of south of the Yangtze river comprises the following steps:
step 1: constructing a first-level index and a second-level index of a south China ancient town ecological service function evaluation index system, wherein the first-level index comprises product supply, ecological regulation and culture service;
and 2, step: setting a characteristic calculation formula aiming at the characteristics of the secondary indexes, and calculating the ecological functional quantity of the secondary indexes;
and step 3: and (4) summarizing the index values in the step (2) to obtain evaluation results of the ancient town ecological products and the service functions in the south of the Yangtze river.
In an embodiment, the evaluation process for calculating the ecological function quantity of the ancient town in south of the Yangtze river specifically includes:
(1) The value of the product of the safe housing is checked,
the living house is a secondary index of product supply, and refers to the value of house products which are designed and built in ancient towns of the south of the Yangtze river through town planning, are used for living and living of external or moved personnel, have unified planning style and classical characteristics and are suitable for ecological environments of the ancient towns.
The number of the rest dwellings provided by ancient towns in the south of the Yangtze river is N H I th obtained by questionnaire H The value of the suite is
(Yuan), i H ＝1,2…N H Product value V of the safe housing Hou The calculation formula of (A) is as follows:
(2) The value accounting of the ecological service function of the air purification,
air purification is a secondary index of ecological regulation, and means that a green space ecosystem of the ancient town of the south of the Yangtze river absorbs, filters, blocks and decomposes atmospheric pollutants such as sulfur dioxide, nitrogen oxides, particulate matters and the like, reduces the content of various air pollutants, and improves the quality of regional air environment;
the ecological air purification method is converted into artificial treatment to replace a green land ecological system, and the treatment cost for maintaining good atmosphere is the ecological service value of air purification.
According to the national standard, the proportion G of excellent air quality grade and good days in the ancient town of the south of the Yangtze river in one year is counted a (%). Converted into artificial atmospheric treatment measures for ancient town area A (km) in south of the Yangtze river 2 ) The treatment cost per square kilometer of atmosphere for realizing excellent and good air grade is P a (M/(km) 2 ))。
Ecological service value V for air purification of ancient towns in south of the Yangtze river a Public accountThe formula is as follows:
V a ＝G a ×P a ×A
(3) The ecological service function value of the water quality maintenance is calculated,
the water quality maintenance is a secondary index of ecological regulation, and means that pollutants such as ammonia nitrogen, total phosphorus and the like in water are adsorbed, degraded and absorbed by aquatic plants, microorganisms and the like in an internal water ecosystem of a south China ancient town, the dissolved oxygen concentration in the water is improved and maintained, various water bodies in the south China ancient town are maintained and improved to reach a surface water IV standard or above, and the surface water III is higher than the surface water IV; the water quality is converted into an artificial treatment alternative water ecological system, and the artificial treatment cost for maintaining and improving various water bodies to reach the surface water IV standard or above is the ecological service functional value of water quality maintenance.
A monitoring section is arranged in the water body of the rivers and lakes in the ancient towns of the south of the Yangtze river, and the indexes of chemical oxygen demand, ammonia nitrogen, total phosphorus, total nitrogen, dissolved oxygen and the like of the water body are monitored. According to the national surface water environment quality standard, evaluating the water quality category of the monitored section, and counting the water area A with the surface water environment quality of III w3 (m 2 ) And water area A of class IV w4 (m 2 ). Taking surface water environmental quality class V as a treatment starting end, and measuring and calculating the unit price cost PI of the water subjected to artificial treatment to class III III (Yuan/m) 2 ) And monovalent cost of class IV PI IV (Yuan/m) 2 ) (ii) a The maintenance of the water ecosystem for the III class and the IV class of the river and lake water body is replaced by the manual maintenance, and the labor unit price cost for the III class and the IV class maintenance is P III (Yuan/m) 2 ) And P IV (Yuan/m) 2 )。
Ecological service value V for water quality maintenance in ancient Zhenzui of south of the Yangtze river wp The accounting formula is as follows:
V wp ＝(PI III +P III )×A w3 +(PI IV +P IV )×A w4
(4) The ecological service function value accounting of flood regulation and storage,
the flood regulation is a secondary index of ecological regulation, and refers to the functional quantity of reducing the runoff of torrential rain in farmlands, lakes, rivers and forest shrubs in ancient towns in the south of the Yangtze river during the torrential rain period when the daily rainfall is more than 50 mm;
the construction cost of the artificial flood control facilities for regulating and storing flood storms with the same functional capacity is the ecological service value of flood regulation and storage.
Dividing farmlands, lakes, rivers and forest shrubs in ancient towns of the south of the Yangtze river into N according to the difference of surface runoff coefficients of the farmlands, lakes, rivers and forest shrubs e Class i, wherein the surface runoff coefficient of the i-th ecosystem is r i ，i＝1,2…N e ,N e A number representing a kind of the divided ecosystem; and respectively counting the area A of the i-th ecological system i (m 2 ). From rainfall P (mm) and surface runoff coefficient r i Calculating the flood regulation and storage total amount C of the ecological system of the farmland and forest shrubs fc (m 3 A). The area A of the lake river in the ancient town of the south of the Yangtze river is counted L (km 2 ) According to the evaluation model of the lake water regulation quantity, the regulation and storage quantity CL (m) of the lake and the river channel is measured and calculated 3 A). The construction cost of the facility converted into the artificial flood control facility and used for regulating and storing the same work energy is P fm (Yuan/m) 3 )。
Ecological service value V of flood regulation fm The accounting formula is:
V fm ＝(C fc +CL)×P fm ＝[∑(P-P×r i )×A i ×1000+CL]×P fm
(5) The value accounting of the ecological service function of comfortable climate regulation,
the comfortable climate regulation is a secondary index of ecological regulation, and means that the temperature of the ancient town in the south of the Yangtze river is maintained to be comfortable in the range of the ancient town in the south of the Yangtze river through the transpiration of vegetation in the green land and the heat absorption in the evaporation process of the water surface of rivers and lakes when the temperature is higher than 26 ℃; the heat is converted into the heat which is absorbed by the artificial air conditioner instead of greenbelt vegetation and the water surface of rivers and lakes on the same scale, the same comfortable temperature is maintained, and the electricity cost is the ecological service function value of comfortable climate regulation.
Dividing the green land vegetation system in the ancient town of the south of the Yangtze river into N p Class, area S of the j-th green vegetation system j ，j＝1,2…N p (ii) a According to the heat EPP consumed by transpiration of each type of green land vegetation system in unit area j (kJ/(m 2 D)), and the number of days D required for the air-conditioning to be opened for maintaining the temperature of 26 ℃ and the energy efficiency ratio r of the air-conditioning, and the energy E consumed by vegetation transpiration is measured pt (kWh); according to the water surface evaporation E of rivers and lakes in ancient towns of the south of the Yangtze river and lakes when the daily average temperature exceeds 26 ℃ within one year w (m 3 ) Calculating the energy E consumed by the evaporation of the water surface of the river or lake with the heat q (J) required by the evaporation of 1g of water we (kWh); accumulating the energy E consumed by vegetation transpiration pt (kWh) and energy E consumed by evaporation of water surface of rivers and lakes we (kWh) is the total energy E consumed by transpiration and evaporation of the ancient town ecosystem in south of the Yangtze river tt (kWh). The ecological system is changed into an air conditioner for regulation, and the total energy E is consumed tt (kWh), the electricity price of ancient town in south of the Yangtze river is P e (Yuan/kWh).
Ecological service value V for comfort climate regulation of ancient town in south of the Yangtze river tt The accounting formula is as follows:
V tt ＝(E pt +E we )×P e
＝[∑EPP i ×S i ×D×10 6 /(3600×r)+E w ×q×10 3 /3600]×P e
(6) Accounting the ecological service function value of leisure tourism of ancient town in south of the Yangtze river,
the leisure tourism of the ancient town of the south of the Yangtze river is a secondary index of cultural service, and means that the ancient town of the south of the Yangtze river attracts tourists to experience the life of the ancient town of the ecological south of the Yangtze river due to unique fish-rice-water country landscape and canal culture, and the experience value of the tourists is the ecological service function value of the leisure tourism of the ancient town of the south of the Yangtze river.
The number of the operating units of the leisure tourist spots in the ancient town of the south of the Yangtze river is N TB Count the ith TB Total number of visitors received by leisure travel management unit in year
And the annual total business income of the leisure travel management unit
(Yuan), i TB ＝1,2…N TB 。
Ecological service function value V of leisure tourism in ancient town of south of the Yangtze river LT The accounting formula is as follows:
(7) The value accounting of the ecological service function of the ancient civilian accommodation service in the south of the Yangtze river,
the south China ancient township service is a second-level index of cultural service, namely a house which is self-used by residents in ancient townships and can also be an idle house, is built in the south China ancient township, combines humanity, living resources and natural environment of the south China ancient township, provides accommodation, south China ancient township living experience and catering service, and brings tourist experience value which is ecological service value of the south China ancient township service.
Remembering that the number of residential business units in ancient town of south of the Yangtze river is N Hs Counting the ith Hs Total number of visitors who receive the treatment of each unit year
And the annual total business income of the residential and residential business unit
(Yuan), i Hs ＝1,2…N Hs 。
Ecological service functional value V of ancient township service in south of the Yangtze river Hs The accounting formula is as follows:
(8) The ecological service function value accounting of the hydrophilic activities of ancient towns in the south of the Yangtze river,
the ancient town hydrophilic activities in the south of the Yangtze river are two-level indexes of cultural services, and refer to waterborne activities of tourists, such as pleasure boats, waterborne entertainment and the like, which are carried out in the ancient town of the south of the Yangtze river by taking river and lake water bodies as carriers, and the obtained experience value of the tourists is the ecological service value of the ancient town hydrophilic activities.
Recording the number of the operation individuals of the hydrophilic activities in the ancient town of the south of the Yangtze river as N WAU Counting the ith WAU Total number of visitors receiving the individual's year for each individual hydrophilic activity
(people) and annual total operating income of individuals operated by the hydrophilic activities
(Yuan), i WAU ＝1,2…N WAU 。
Ecological service value V of hydrophilic activities of ancient towns in south of the Yangtze river wa The accounting formula is:
(9) The ecological service function value accounting of the ancient Zhen-shui scene literary and art performance in the south of the Yangtze river,
the ancient waterscape and literature performances in the south of the Yangtze river are two-level indexes of cultural services, namely immersion type theatres built or impression series literature performances developed by taking river and lake water bodies as carriers in the ancient town in the south of the Yangtze river, and the obtained experience value of tourists is the ecological service value of the ancient waterscape and literature performances.
Recording the number of individual water scene theater operation in ancient town of south of Yangtze river as N TPU Counting the ith TPU Total number of tourists receiving individual years in individual waterscape theatre operation
(people) and annual total revenue of individual operating waterscape theatre
(Yuan), i TPU ＝1,2…N TPU 。
Ecological service value V of ancient water landscape artistic performance TP The accounting formula is:
(10) The value accounting of the ecological service function of the ecological rehabilitation in ancient towns of the south of the Yangtze river,
ecological rehabilitation of the ancient town of the south of the Yangtze river is a second-level index of cultural services, and means that the ecological rehabilitation community of the ancient town of the south of the Yangtze river, which is created by combining the landscape of the ancient town of the south of the Yangtze river and traditional Chinese medicine rehabilitation culture, provides high-end rehabilitation services of vacation, rehabilitation and physical and mental tests of foreign tourists, and the obtained physical and mental experience value of the tourists is the ecological service value of the ecological rehabilitation of the ancient town of the south of the Yangtze river.
Recording the number of ecological healthy-maintenance operation individuals in ancient towns in the south of the Yangtze river as N Hc Count the ith Hc The total number of tourists for annual reception of the individual ecological health management
And the annual total business income of the ecological health-care management individual
(Yuan), i Hc ＝1,2…N Hc 。
Ecological service value V for ecological rehabilitation of ancient town in south of the Yangtze river Hc The accounting formula is as follows:
(11) Accounting the ecological product and service value of ancient town in south of the Yangtze river,
ecological product and service value V of ancient town in south of the Yangtze river Ancient town of south of the Yangtze river Equal to the value V of the ecological product of a dwelling house Hou Ecological service value V of air purification a Ecological service value V for maintaining water quality wp Ecological service value V of flood regulation and storage fm Ecological service value V for comfortable climate regulation tt Ecological service value V of leisure tourism in ancient town of south of the Yangtze river LT Ecological service of ancient and civilian accommodation service in south of the Yangtze riverValue V Hs Ecological service value V of hydrophilic activities of ancient towns in the south of the Yangtze river wa Ecological service value V of waterscape and literature performance TP Ecological service value V for ecological rehabilitation of ancient towns in south of the Yangtze river Hc The sum of the calculation formula is as follows:
V ancient town of south of the Yangtze river ＝V Hou +V a +V wp +V fm +V tt +V LT +V Hs +V wa +V TP +V Hc
In conclusion, according to three primary indexes of product supply, ecological regulation and cultural service, the invention designs a living room, air purification, water quality maintenance, flood regulation, comfortable climate regulation, leisure travel of ancient towns in the south of the Yangtze river, ancient civilian accommodation service in the south of the Yangtze river, hydrophilic activities of ancient towns in the south of the Yangtze river, water landscape artistic performance and ecological health maintenance, and innovatively designs an operable ecological product and an ecological service value accounting formula according to the characteristics of the ancient towns in the south of the Yangtze river, so that the calculation and evaluation of ecological energy of good ecological environment of the ancient towns in the south of the Yangtze river are realized.
Claims (9)
1. The evaluation method for ecological service functions of ancient towns in the south of the Yangtze river is characterized by comprising the following steps of:
step 1: constructing a first-level index and a second-level index of a functional evaluation index system of the ancient town ecological services in the south of the Yangtze river, wherein the first-level index comprises product supply, ecological regulation and cultural services;
and 2, step: setting a characteristic calculation formula aiming at the characteristics of the secondary indexes, and calculating the ecological functional quantity of the secondary indexes;
and step 3: summarizing the index values in the step 2 to obtain evaluation results of the ancient town ecological products and the service functions in the south of the Yangtze river;
wherein the ecological regulation comprises four secondary indexes of air purification, water quality maintenance, flood regulation and storage and comfortable climate regulation;
the culture service comprises five secondary indexes of leisure tourism, civilian services, hydrophilic activities, water scene and artistic performance and ecological health.
2. The evaluation method according to claim 1, wherein the living accommodation is a secondary index of product supply, and is the value of a house product which is designed and built in ancient town of south of the Yangtze river through town planning, is used for living accommodation and living of foreign or moved personnel, has a unified planning style and classical characteristics and is suitable for ecological environment of the ancient town;
remember that the number of resident houses provided by ancient town of south of the Yangtze river is N H I th obtained by questionnaire H The value of the suite is
i H ＝1,2…N H ；
The calculation formula of the value of the living accommodation product is as follows:
wherein V H Represents the total value of the dwelling house products provided by the ancient town of the south of the Yangtze river.
3. The evaluation method according to claim 1, wherein the air purification is a secondary index of ecological regulation, and means that a green space ecosystem of ancient towns in the south of the Yangtze river absorbs, filters, blocks and decomposes sulfur dioxide, nitrogen oxides and particulate matters, reduces the content of various air pollutants, and improves the environmental quality of regional air;
the ecological environment is converted into artificial treatment to replace a green land ecological system, and the treatment cost for maintaining good atmosphere is the ecological service value of air purification;
according to the national standard, the proportion G of excellent air quality grade and good days in the ancient town of the south of the Yangtze river in one year is counted a (ii) a Converted into artificial atmosphere treatment measures, and the atmospheric treatment cost per square kilometer for realizing excellent and good air grade of ancient town area A in south of the Yangtze river is P a ；
Ecological service value V for air purification of ancient towns in south of the Yangtze river a The accounting formula is as follows:
V a ＝G a ×P a ×A
the water quality maintenance is a secondary index of ecological regulation, and means that aquatic plants and microorganisms in an internal water ecological system of the ancient town of the south of the Yangtze river adsorb, degrade and absorb ammonia nitrogen and total phosphorus pollutants in a water body, the dissolved oxygen concentration in the water body is improved and maintained, and various water bodies in the ancient town of the south of the Yangtze river are maintained and improved to reach the standard of surface water IV class; converting the water into a manual treatment substitute water ecological system, and maintaining and improving the manual treatment cost of various water bodies to reach the standard of surface water above IV, namely the ecological service functional value of water quality maintenance;
arranging a monitoring section in the water body of rivers and lakes in ancient towns in the south of the Yangtze river, and monitoring the indexes of chemical oxygen demand, ammonia nitrogen, total phosphorus, total nitrogen and dissolved oxygen of the water body; according to the national surface water environmental quality standard, evaluating the water quality category of the monitored section, and counting the water area A with the surface water environmental quality of III w3 And water area A of class IV w4 (ii) a Taking the surface water environment quality class V as a treatment starting end, and calculating the unit price PI of the water treated by the surface water environment quality class V to the class III III And monovalent cost of class IV PI IV (ii) a The maintenance of the water ecosystem for the III class and the IV class of the river and lake water body is replaced by the manual maintenance, and the labor unit price cost for the III class and the IV class maintenance is P III And P IV ；
Ecological service value V for water quality maintenance in ancient towns of south of the Yangtze river wp The accounting formula is as follows:
V wp ＝(PI III +P III )×A w3 +(PI IV +P IV )×A w4
flood regulation is a secondary index of ecological regulation, and refers to the functional capacity of farmland, lake rivers and forest shrubs in ancient towns in the south of the Yangtze river for reducing the runoff of torrential rain in the torrential rain period; the construction cost of the artificial flood control facilities for regulating and storing the flood storms with the same functional capacity is the ecological service value of flood regulation and storage;
dividing farmlands, lakes, rivers and forest shrubs in ancient towns of the south of the Yangtze river into N according to the difference of surface runoff coefficients of the farmlands, lakes, rivers and forest shrubs e Class i, wherein the surface runoff coefficient of the i-th ecosystem is r i ，i＝1,2…N e ,N e Representing partitioned ecosystemsThe number of categories of (c); and respectively counting the area A of the i-th ecological system i (ii) a From rainfall P and surface runoff coefficient r i Calculating the flood regulation and storage total amount C of the ecological system of the farmland and forest shrubs fc (ii) a The area A of the lake river in the ancient town of the south of the Yangtze river is counted L Measuring and calculating the regulated storage capacity CL of the lake and the river; the construction cost of the facility converted into the artificial flood control facility for regulating and storing the same energy is P fm ；
Ecological service value V of flood regulation fm The accounting formula is as follows:
V fm ＝(C fc +CL)×P fm ＝[∑(P-P×r i )×A i ×1000+CL]×P fm
the comfortable climate regulation is a secondary index of ecological regulation, and means that the ancient town of the south of the Yangtze river absorbs heat through the transpiration of green land vegetation and the evaporation process of the water surface of rivers and lakes to maintain a comfortable temperature in the range of the ancient town of the south of the Yangtze river; converting the heat into the heat energy which is converted into the heat energy by an air conditioner to replace greenbelt vegetation and the water surface of rivers and lakes, absorbing the heat energy with the same scale, and maintaining the same comfortable temperature, wherein the electricity cost is the ecological service function value of comfortable climate regulation;
dividing the green land vegetation system in ancient town of south of the Yangtze river into N p Class, area S of the j-th green vegetation system j ，j＝1,2…N p (ii) a According to the heat EPP consumed by transpiration of each type of green land vegetation system in unit area j And the number of days D for opening the air conditioner and the energy efficiency ratio r of the air conditioner are required for maintaining the proper temperature, and the energy E consumed by vegetation transpiration is measured pt (ii) a According to the water surface evaporation E of rivers and lakes in ancient towns of the south of the Yangtze river and lakes when the daily average temperature exceeds 26 ℃ within one year w Calculating the energy E consumed by evaporation of the water surface of the river or lake according to the heat q required by water with unit weight of evaporation we (ii) a Accumulating the energy E consumed by vegetation transpiration pt Energy E consumed by evaporation of water surfaces of rivers and lakes we That is, the total energy E consumed by transpiration evaporation of the ancient town ecosystem in the south of the Yangtze river tt (ii) a Changing the ecological system into an air conditioner for regulation, and consuming the total energy E tt The electricity price of the ancient town in the south of the Yangtze river is P e ；
Ecological service value V for comfort climate regulation of ancient town in south of the Yangtze river tt The calculation formula of (c) is:
V tt ＝(E pt +E we )×P e ＝[∑EPP i ×S i ×D×10 6 /(3600×r)+E w ×q×10 3 /
3600]×P e 。
4. the evaluation method according to claim 1, wherein the leisure tourism is a secondary index of cultural service, which means that the ancient town in south of the Yangtze river attracts tourists to experience the life of the ancient town in south of the Yangtze river due to unique fish-water country landscape and canal culture of the ancient town, and the experience value of the tourists is the ecological service function value of the leisure tourism of the ancient town in south of the Yangtze river;
the number of the operating units of the leisure travel points in the ancient town of the south of the Yangtze river is recorded as N TB Counting the ith TB Total number of visitors received by leisure travel management unit in year
And the annual total business income of the leisure travel management unit
The calculation formula of the ecological service function value of the leisure tourism of the ancient town in the south of the Yangtze river is as follows:
wherein V LT The method represents the annual ecological service function value of leisure tourism of ancient towns in the south of the Yangtze river.
5. The evaluation method according to claim 1, wherein the residential service is a secondary index of a cultural service, and means that a house with characteristics of the ancient town of south of the Yangtze river is established by using the ancient town of south of the Yangtze river, and living experiences and catering services of the ancient town of the Yangtze river are provided by combining humanity, living resources and natural environment of the ancient town of the Yangtze river, and the experience value of tourists brought by the service is the ecological service value of the ancient township service of the south of the Yangtze river;
remembering that the number of residential business units in ancient town of south of the Yangtze river is N Hs Count the ith Hs Total number of visitors who receive the treatment of each unit year
And the annual total business income of the residential and residential business unit
The calculation formula of the ecological service function value of the ancient civilian accommodation service in the south of the Yangtze river is as follows:
wherein V Hs And the annual ecological service functional value of the ancient civilian services in the south of the Yangtze river is represented.
6. The evaluation method according to claim 1, wherein the hydrophilic activities are secondary indexes of cultural services, and refer to the aquatic activities of tourists carried out in ancient towns in the south of the Yangtze river by taking water bodies of rivers and lakes as carriers, and the obtained experience value of the tourists is the ecological service value of the hydrophilic activities in the ancient towns;
recording the number of the operation individuals of the hydrophilic activities in the ancient town of the south of the Yangtze river as N WAU Count the ith WAU Total number of visitors who take care of each individual's year in a hydrophilic activity
And the total annual operating income of the individual operated by the hydrophilic activity
i WAU ＝1,2…N WAU ；
The calculation formula of the ecological service value of the hydrophilic activities of ancient towns in the south of the Yangtze river is as follows:
wherein V wa Representing the annual ecological service value of the hydrophilic activities of ancient towns in the south of the Yangtze river.
7. The evaluation method according to claim 1, wherein the waterscape lites are secondary indexes of cultural services, and refer to immersion type theatres built or impression series literary performances developed by using river and lake water bodies as carriers in ancient towns in the south of the Yangtze river, and the obtained tourist experience value is the ecological service value of the ancient water-township literary performances;
recording the number of individual water scene theater operation in ancient towns in the south of the Yangtze river as N TPU Count the ith TPU Total number of visitors who take care of individual years in individual waterscape theatre
And the total annual operating income of the individual operating in the waterscape theater
i TPU ＝1,2…N TPU ；
The calculation formula of the ecological service value of the ancient waterscape lites and art performances is as follows:
wherein V TP And the annual ecological service value of the ancient township artistic performance in the south of the Yangtze river is represented.
8. The evaluation method according to claim 1, wherein the ecological health is a secondary index of cultural services, and is a high-end health service providing vacation, rehabilitation and physical and mental experience for foreign tourists in the ancient town of south of the Yangtze, wherein the high-end health service is created by combining the landscape of the ancient town of south of the Yangtze and provides the obtained physical and mental experience value of the tourists as the ecological service value of the ecological health in the ancient town of south of the Yangtze;
recording the number of ecological healthy operation individuals in ancient towns in the south of the Yangtze river as N Hc Counting the ith Hc The total number of tourists for annual reception of the individual ecological health management
And the annual total business income of the ecological health-care management individual
The calculation formula of the ecological service value of the ecological rehabilitation in ancient towns of the south of the Yangtze river is as follows:
wherein V Hc Representing the annual ecological service value of ecological health maintenance of ancient town in south of the Yangtze river.
9. The evaluation method according to any one of claims 1 to 8, wherein the ecological product and service value V of ancient towns in the south of the Yangtze river is equal to the ecological product value V of a resident housing Hou Ecological service value V of air purification a Ecological service value V for maintaining water quality wp Ecological service value V for flood regulation fm Ecological service value V for comfortable climate regulation tt Ecological service value V of leisure tourism in ancient town of south of the Yangtze river LT Ecological service value V of ancient and civilian-saving services in the south of the Yangtze river Hs Ecological service value V of hydrophilic activities of ancient towns in the south of the Yangtze river wa Ecological service value V of waterscape and literature performance TP Ecological service value V for ecological rehabilitation of ancient town in south of the Yangtze river Hc The sum of the total weight of the two components,
the calculation formula of the ecological product and service value V of the ancient town in south of the Yangtze river is as follows:
V＝V Hou +V a +V wp +V fm +V tt +V LT +V Hs +V wa +V TP +V Hc 。
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