CN116070956B - Method for evaluating planning benefit of homeland space - Google Patents
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Abstract
The invention discloses a method for evaluating planning benefits of a homeland space, which comprises the following steps: establishing an ecosystem service space planning data set; analyzing supply and demand change factors in the ecosystem service space planning data set; performing feature analysis on the patch planning, and correcting basic equivalent of the service function value of the ecological system in unit area; analyzing the supply-demand coupling coordination degree of the service space of the ecological system according to the supply-demand change of the service space of the ecological system; and (5) studying and judging the planning benefit of the homeland space according to the supply-demand coupling coordination schedule. The invention solves the problem of increasingly serious urban resource shortage and the problem of difficult allocation of construction space, agricultural space and ecological space and the problem of ecological space deficiency; and (3) evaluating the supply and demand conditions of the ecosystem service in the homeland space planning, clearing the space characteristics of the supply and demand relationship of the ecosystem service, and promoting the orderly development of regional ecology and economy.
Description
Technical Field
The invention relates to the technical field of homeland space planning, in particular to a homeland space planning benefit evaluation method.
Background
The key point of the related research of the current homeland space planning is also the research of the programming theory and the programming method, and the research of the planning benefit evaluation is lacking. Through literature analysis, research on planning benefit evaluation in land planning, land reclamation planning and city planning is found. The existing evaluation focuses on analyzing or evaluating the execution condition of the plan (namely, the completion condition of the planning index), but the research on various effects, benefits and the like generated by the implementation of the plan is relatively lacking. In the beginning of the last century, index research on land utilization economic benefit evaluation began to appear abroad, and by the 90 s, the united nations grain and agriculture organization (FAO) issued land utilization planning guidelines, and land utilization planning implementation evaluation was used as an important component of land utilization overall planning. Dao and the like adopt a multi-factor comprehensive evaluation method, 11 indexes are selected to analyze the economic benefit of the small town land utilization in the north of Chongqing city. Hu Tinglan, yang Zhifeng integrates the energy analysis method with the land arrangement ecological benefit evaluation, and constructs an evaluation formula of the land arrangement ecological benefit. Liu Jian and the like combine the paired factor comparison method with the analytic hierarchy process, calculate the comprehensive index of urban land utilization benefit from three aspects of economic benefit, ecological benefit and social benefit, and analyze the urban land utilization benefit of various land cities in Jiangsu province in different years. Liu Xian and Liu Chaohui calculate the membership of each index by adopting an S-shaped membership curve, and construct an urban land utilization overall planning benefit evaluation index system to calculate the land utilization comprehensive benefit development trend from 1996 to 2003 Wuhan city.
With the continuous change of the requirements of natural, social and economic development, the contents of land utilization planning and land arrangement benefit evaluation are continuously and perfectly adjusted, and the initial emphasis on economic benefit gradually tends to comprehensive benefit. The main methods of the land utilization benefit evaluation research at present mainly adopt a analytic hierarchy process, a terfei process and an entropy weight process, and the analysis and evaluation of indexes mainly use a fuzzy model identification method and a matter analysis method.
The homeland space planning is a planning of 'multiple rules and regulations', emphasizes 'ecological priority' and 'green development', and researches more and more benefit changes before and after planning from the ecological system service trade-off relation and the ecological system service supply and demand matching relation along with the adjustment and change of concepts. The method is characterized in that the land utilization pattern is optimized through a planning means, so that the balance of the ecological system service balance relationship and the ecological system service supply and demand is achieved, and the planning benefit is inspected from the supply and demand change, so that an evaluation system is formed.
The delumper et al point out that the ecological system service tradeoff/synergy pursues the improvement of the supply capacity of the ecological system service and the stabilization of the structure and function of the ecological system, and the supply, demand type and space layout of the ecological system service are different, so that the trade-off or synergy relationship between various ecological system services needs to be clarified. Guo Chaoqiong and the like classify the ecological system service supply and demand assessment method into four major categories, namely ecological model method, value method, participation method and experience statistical model method. Currently, in the evaluation of supply and demand of an ecosystem service, the index of supply is mostly the index of supply, but the index of demand and supply and demand coordination is relatively lacking, mainly because of lacking the necessary data support and the related theoretical basis of supply and demand coordination. The management youth takes the rebalancing of the ecological system service supply and the human social development demand as a basic starting point, an ecological system service sustainability assessment framework is constructed from 3 dimensions of the ecological system service supply and demand quantity, the supply and demand quality and the functional benefit, and European victims and the like analyze the supply and demand patterns and the hot spot changes of the 1985-2015 long triangle ecological system service, construct an ecological system service supply and demand assessment matrix, and the result shows that the supply of the ecological system service in the long triangle area is reduced, the demand is increased, the surplus of the ecological system service is reduced, the red characters are increased and the total supply and demand is not required. Yang Yang and the like evaluate the synergistic effect and the trade-off relation of the ecological services in the loess hilly and ravine region by adopting the InVEST model, and the ecological services in the returning forest and grass decades are greatly improved. Xie Gaode and the like, based on the service value of the foreign global ecological system, a table of ecological service equivalent factors more suitable for China and a correction formula thereof in practical application are provided, and the dynamic evaluation of the method on the service is realized through perfection and development. Jing Yongcai and the like propose that the quantity and the quality of the supply and the demand of the ecological system service have great difference in time-space scale, explore the supply and demand states, trends and driving mechanisms of the ecological system service, can provide scientific basis for territorial space planning, ecological protection and management and the like, and plays an important supporting role in ecological safety pattern construction and regional economy sustainable development. Luo Chang and the like select Chongqing as a research object, and an evaluation method of the service value of the ecosystem is adopted to quantitatively evaluate the service value of the ecosystem of the Chongqing urban green space, so as to provide an optimization strategy for the green space planning of the Chongqing in the mountain area. first bloom proposes that the current government layer lacks the targeted research on the supply and demand relation of the ecological system service, and the management strategy and policy measures on the ecological system service are relatively rare, so that the overall planning and regional management and control of the homeland space are affected.
The homeland space planning is a necessary way for solving the increasingly serious urban resource shortage problem, the current problems of difficult allocation of urban space, agricultural space and ecological space, the lack of ecological space and the like. Under the background, the ecological system service supply and demand conditions in regional homeland space planning are evaluated, and the spatial characteristics and the existing main problems of the ecological system service supply and demand relationship are cleared, so that the homeland space planning scheme is scientifically and reasonably adjusted, and the regional ecology and economy orderly development is promoted.
Therefore, a method for evaluating the planning benefit of the homeland space is provided to solve the difficulty existing in the prior art, which is a problem to be solved by the technicians in the field.
Disclosure of Invention
In view of the above, the invention provides a benefit evaluation method for the national space planning, which evaluates the supply and demand conditions of the ecosystem service in regional national space planning, and clears the spatial characteristics of the supply and demand relationship of the ecosystem service, thereby scientifically and reasonably adjusting the national space planning scheme and promoting the orderly development of regional ecology and economy.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The method for evaluating the planning benefit of the homeland space comprises the following steps:
establishing an ecosystem service space planning data set;
analyzing supply and demand change factors in the ecosystem service space planning data set;
Performing feature analysis on the patch planning, and correcting basic equivalent of the service function value of the ecological system in unit area;
analyzing the supply-demand coupling coordination degree of the service space of the ecological system according to the supply-demand change of the service space of the ecological system;
And (5) studying and judging the planning benefit of the homeland space according to the supply-demand coupling coordination schedule.
The method, optionally, the ecosystem service space planning data set specifically includes: an ecological space planning data set, a construction space planning data set, and an agricultural space planning data set.
In the above method, optionally, the system service space planning data set includes:
the supply and demand change factors of the ecological space planning data set specifically comprise: water resource supply, raw material production, carbon sequestration, soil conservation and environment purification;
The supply and demand change factors of the construction space planning data set specifically comprise: carbon emission, water for production and living, environmental pollution, recreation, food demand and raw material demand;
The supply and demand change factors of the agricultural space planning data set specifically comprise: agricultural water and food production.
According to the method, optionally, the basic equivalent correction of the service function value of the ecological system in unit area specifically comprises the following steps:
The food product supply and raw material production service contained in the supply service is quantified by counting the agricultural, forest, pasturing and fishing yield values in the annual bill; the differences of the regulation service and the support service are derived from the natural background, and the forest coverage rate is used for representing the natural background; the agricultural, forest, pasture and fishing yield equivalent in the unit land area yield value is used for respectively correcting the supply service equivalent of cultivated land, forest land, grassland and water body, the forest coverage rate is used for correcting the value equivalent of the regulation service and the support service, and the value equivalent of the cultural service is corrected based on the total tourism income index;
The specific correction coefficient calculation formula is as follows:
Wherein n is a correction coefficient; a i is the mean value of Yibin; a i is Chinese average value; obtaining an ecological system supply service correction coefficient of cultivated land, woodland, grassland and water body according to the calculation result; and obtaining correction coefficients of regulation, support and culture services, taking the average value of the secondary standard of each land equivalent value, and multiplying the economic value of the unit area ecological system service equivalent by the correction coefficients to obtain the ecological system service value.
According to the method, optionally, the ecological system service supply calculation table and the ecological system service demand calculation table are determined according to the analysis of the supply and demand change factors in the ecological system service space planning data set.
According to the method, optionally, quantitative accounting of the supply and demand of the ecosystem service is carried out to obtain the supply and demand of each ecosystem service index in the basic period and the final period of the national space planning and the total supply and demand of the regional ecosystem service; and calculating the regional ecosystem service coupling coordination table based on the quantification result, and judging the coupling coordination relation between the base period and the end period to determine an ecosystem service supply and demand coupling coordination table.
According to the method, optionally, the studying and judging of the homeland space planning benefit specifically comprises the following steps:
And calculating the regional ecosystem service coupling coordination schedule based on the quantized result according to the supply and demand amount of the ecosystem service space and the total supply and demand amount of the regional ecosystem service, and researching and judging the coupling coordination relationship of the base period and the end period.
According to the method, optionally, the benefit studying and judging standard for the homeland space planning is as follows: end-to-base coupling coordination difference.
Compared with the prior art, the invention has the beneficial effects that: the problem of increasingly severe urban resource shortage and the problem of difficult allocation of construction space, agricultural space and ecological space and the problem of ecological space deficiency are solved; and (3) evaluating the supply and demand conditions of the ecosystem service in the homeland space planning, clearing the space characteristics of the supply and demand relationship of the ecosystem service, and promoting the orderly development of regional ecology and economy.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for evaluating the planning benefit of a homeland space;
fig. 2 is a specific flowchart of a method for evaluating the planning benefit of the homeland space.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to FIG. 1, the invention discloses a method for evaluating planning benefits of a homeland space, which comprises the following steps:
establishing an ecosystem service space planning data set;
analyzing supply and demand change factors in the ecosystem service space planning data set;
Performing feature analysis on the patch planning, and correcting basic equivalent of the service function value of the ecological system in unit area;
analyzing the supply-demand coupling coordination degree of the service space of the ecological system according to the supply-demand change of the service space of the ecological system;
And (5) studying and judging the planning benefit of the homeland space according to the supply-demand coupling coordination schedule.
Further, the ecosystem service space planning data set specifically includes: an ecological space planning data set, a construction space planning data set, and an agricultural space planning data set.
Further, the supply and demand changing factors in the ecosystem service space planning data set include:
the supply and demand change factors of the ecological space planning data set specifically comprise: water resource supply, raw material production, carbon sequestration, soil conservation and environment purification;
The supply and demand change factors of the construction space planning data set specifically comprise: carbon emission, water for production and living, environmental pollution, recreation, food demand and raw material demand;
The supply and demand change factors of the agricultural space planning data set specifically comprise: agricultural water and food production.
Further, referring to tables 1 and 2, the ecosystem service supply calculation table and the ecosystem service demand calculation table are determined according to the analysis of the supply and demand change factors in the ecosystem service space planning data set.
Table 1 ecosystem service provision calculation table
Note that: ecological service value equivalent method refers to Xie Gaode et al (2015) ecological service value research results; f f is food throughput; g sum is total regional food production; n i is the unit NDVI value; n sum is the total value of the zone NDVI.
Table 2 ecosystem service requirement calculation table
Note that: d w is water resource demand; d a is the national average agricultural water consumption; d f is food demand; d f is food consumption of people all over the country; d t is raw material requirement; d t is the consumption of raw materials per capita nationwide; d g is national average industrial water; d p is domestic water for people all around the country; d c is carbon sequestration demand; d c is carbon emission of people all over the country; d a is the environmental purification requirement; ρ is the regional air pollution concentration; ρ i is the national control standard air pollution concentration; s is the area of the research area; d r is the recreational demand; d r is the demand of the rest places of people all over the country.
Further, the modification of the basic equivalent of the service function value of the ecological system in unit area specifically includes:
The food product supply and raw material production service contained in the supply service is quantified by counting the agricultural, forest, pasturing and fishing yield values in the annual bill; the differences of the regulation service and the support service are derived from the natural background, and the forest coverage rate is used for representing the natural background; the agricultural, forest, pasture and fishing yield equivalent in the unit land area yield value is used for respectively correcting the supply service equivalent of cultivated land, forest land, grassland and water body, the forest coverage rate is used for correcting the value equivalent of the regulation service and the support service, and the value equivalent of the cultural service is corrected based on the total tourism income index;
The specific correction coefficient calculation formula is as follows:
Wherein n is a correction coefficient; a i is the mean value of Yibin; a i is Chinese average value; obtaining an ecological system supply service correction coefficient of cultivated land, woodland, grassland and water body according to the calculation result; and obtaining correction coefficients of regulation, support and culture services, taking the average value of the secondary standard of each land equivalent value, and multiplying the economic value of the unit area ecological system service equivalent by the correction coefficients to obtain the ecological system service value.
Further, the quantitative accounting of the supply and demand of the ecosystem service is carried out to obtain the supply and demand of each ecosystem service index at the basic period and the final period of the national space planning and the total supply and demand of the regional ecosystem service; and calculating the regional ecosystem service coupling coordination table based on the quantification result, and determining an ecosystem service supply and demand coupling coordination table (table 3) by studying and judging the coupling coordination relation of the base period and the end period.
TABLE 3 ecological system service supply and demand coupling co-schedule calculation table
Note that: f is the quantified total ecosystem service offer; d is the quantified total ecosystem service demand; c, providing a demand coupling degree for the ecological system service; x is a service supply and demand coupling co-schedule for the ecosystem.
Further, by quantitatively accounting the supply and demand of the ecosystem service, the supply and demand of each ecosystem service index of the basic period and the final period of the national space planning and the total supply and demand of the regional ecosystem service are obtained, the regional ecosystem service coupling coordination is calculated based on the quantized result, and the coupling coordination relation of the basic period and the final period is researched and judged, wherein the larger the value of the coupling coordination table X is, the higher the coupling degree between the supply and the demand is.
Furthermore, the studying and judging standard for the planning benefit of the homeland space is as follows: the coupling coordination degree difference between the final stage and the basic stage is-1 to 1, and the method is specifically divided into the following steps: low benefit (-1 to minus 0.2), medium benefit (-0.2 to 0.2) and high benefit (0.2 to 1).
Further, the specific implementation concept of the present invention is shown in fig. 2.
In a specific embodiment, considering the error of regional characteristics represented by national parameters, it is necessary to correct the equivalent coefficient in the service value equivalent table of the ecological system in unit area of China, and the food product supply and raw material production service contained in the supply service can be quantified by counting the agricultural, forest, pasture and fishery output values in annual-bill; the regulatory service and support service differences are derived from a natural background, which is characterized herein by forest coverage. Therefore, the supply service equivalent of farmland, woodland, grassland and water body is respectively corrected by adopting the agricultural, woodland, pasture and fishing yield equivalent in the unit land area yield, the value equivalent of the regulation service and the support service is corrected by using the forest coverage rate, and the value equivalent of the cultural service is corrected based on the total income index of travel. The specific correction coefficient calculation formula is as follows:
wherein n is a correction coefficient, and is dimensionless; a i is the mean value of Yibin; a i is the average value in China. According to the calculation result, the ecological system supply service correction coefficients of the cultivated land, the woodland, the grassland and the water body are respectively 1.1, 0.97, 0.69 and 0.46; the correction coefficients for the regulation, support and culture services are respectively 2.15, 2.15 and 4.42. Based on a basic equivalent table constructed in 2015 of Xie Gaode et al, the equivalent value of each land is taken as the average value of the secondary standard, and the economic value of the ecological system service equivalent in unit area of China is multiplied by a correction coefficient, so that the ecological system service value quantity in Sichuan province can be obtained. Since the construction land provides little ecosystem service, it is not estimated here.
TABLE 4 Yibin city ecosystem service value correction Table
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A method for evaluating the planning benefit of the territorial space is characterized in that,
Establishing an ecosystem service space planning data set;
analyzing supply and demand change factors in the ecosystem service space planning data set;
Performing feature analysis on the patch planning, and correcting basic equivalent of the service function value of the ecological system in unit area;
analyzing the supply-demand coupling coordination degree of the service space of the ecological system according to the supply-demand change of the service space of the ecological system;
According to the supply-demand coupling cooperative scheduling, studying and judging benefits of the planning of the homeland space;
The ecosystem service space planning data set specifically comprises: an ecological space planning data set, a construction space planning data set and an agricultural space planning data set;
The supply and demand changing factors in the ecosystem service space planning data set comprise:
the supply and demand change factors of the ecological space planning data set specifically comprise: water resource supply, raw material production, carbon sequestration, soil conservation and environment purification;
The supply and demand change factors of the construction space planning data set specifically comprise: carbon emission, water for production and living, environmental pollution, recreation, food demand and raw material demand;
the supply and demand change factors of the agricultural space planning data set specifically comprise: agricultural water and food production;
The method for studying and judging the planning benefit of the homeland space specifically comprises the following steps:
Calculating the regional ecosystem service coupling coordination schedule based on a quantized result according to the supply and demand amount of the ecosystem service space and the total supply and demand amount of regional ecosystem service, and researching and judging the coupling coordination relationship of the base period and the end period;
The coupling co-scheduling calculation formula is: c= { f×d/[ (f+d)/2 ] 2}1/2,X＝[C×(F+D)/2]1/2; wherein F is the quantified total ecosystem service offer; d is the quantified total ecosystem service demand; c, providing a demand coupling degree for the ecological system service; x is a service supply and demand coupling co-schedule for the ecosystem.
2. The method for evaluating the planning benefit of the homeland space according to claim 1, wherein the modification of the basic equivalent of the service value of the ecosystem in unit area specifically comprises:
The food product supply and raw material production service contained in the supply service is quantified by counting the agricultural, forest, pasturing and fishing yield values in the annual bill; the differences of the regulation service and the support service are derived from the natural background, and the forest coverage rate is used for representing the natural background; the agricultural, forest, pasture and fishing yield equivalent in the unit land area yield value is used for respectively correcting the supply service equivalent of cultivated land, forest land, grassland and water body, the forest coverage rate is used for correcting the value equivalent of the regulation service and the support service, and the value equivalent of the cultural service is corrected based on the total tourism income index;
The specific correction coefficient calculation formula is as follows:
Wherein n is a correction coefficient; a i is the mean value of Yibin; a i is Chinese average value; obtaining an ecological system supply service correction coefficient of cultivated land, woodland, grassland and water body according to the calculation result; and obtaining correction coefficients of regulation, support and culture services, taking the average value of the secondary standard of each land equivalent value, and multiplying the economic value of the unit area ecological system service equivalent by the correction coefficients to obtain the ecological system service value.
3. The method of claim 1, wherein the ecosystem service supply calculation table and the ecosystem service demand calculation table are determined according to analysis of supply and demand variation factors in the ecosystem service space planning data set.
4. The method for evaluating the benefits of the national space planning according to claim 3, wherein the supply and demand of each ecosystem service index and the total supply and demand of regional ecosystem service at the basic period and the final period of the national space planning are obtained by quantitatively accounting the supply and demand of the ecosystem service; and calculating the regional ecosystem service coupling coordination table based on the quantification result, and judging the coupling coordination relation between the base period and the end period to determine an ecosystem service supply and demand coupling coordination table.
5. The method for evaluating the benefits of the homeland space planning according to claim 1, wherein the criteria for studying the benefits of the homeland space planning are as follows: end-to-base coupling coordination difference.
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