CN110738404A - Improved ecological system ecological service value evaluation method - Google Patents
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- CN110738404A CN110738404A CN201910933394.9A CN201910933394A CN110738404A CN 110738404 A CN110738404 A CN 110738404A CN 201910933394 A CN201910933394 A CN 201910933394A CN 110738404 A CN110738404 A CN 110738404A
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Abstract
The invention belongs to the field of environmental protection, and particularly relates to an improved ecological system ecological service value evaluation method which comprises the following steps of collecting basic data of an ecological system, wherein the basic data comprises land types and occupied area thereof, the types comprise 5 types of forest lands, grasslands, water bodies, farmlands, cities and the like, dividing steps of the cities into construction lands except green lands and urban green lands on the basis of 5 types of division, obtaining urban green land values by combining room price and ratio change, calculating ecological service values of the land types of the ecological system according to a method combining an ecological service value evaluation method and a real estate value method, calculating ecological service total value of the ecological system, and estimating ecological service value change caused by the change of the land types caused by urban development.
Description
Technical Field
The invention belongs to the field of environmental protection, and particularly relates to an improved ecological system ecological service value evaluation method.
Background
The method for evaluating the environmental value is characterized in that articles or services provided by the environment (including elements forming the environment and environment quality) are quantitatively evaluated by means, and the articles or services are usually represented in a currency form.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides improved ecological system ecological service value evaluation methods.
In order to achieve the purpose, the invention adopts the technical scheme that:
method for evaluating ecological service value of improved ecosystem, comprising the following steps:
, collecting basic data of the ecosystem, including land types and floor areas thereof, wherein the land types include 5 types such as woodland, grassland, water body, farmland, city and the like, and dividing the city into construction land except green land and green land of an urban area by steps on the basis of dividing the 5 types of land utilization types;
the second step is that: the urban green land values of all the places are obtained by combining the change of the room price in the same ratio and the change of the room price in the same ratio;
the third step: calculating the ecological service value of each land type of the ecological system according to a method combining an ecological service value evaluation method and a real estate value method;
the fourth step: calculating the total value of ecological services of a certain ecological system; and estimating the change of the ecological service value brought by the change of the land type caused by city development.
The green land value in the second step is calculated in the manner of Eia＝RiaX E; wherein EiaIs the urban green land value of area a in i years, RiaComparing the room price of other years or regions with that of i yearRate of change of house price in Beijing; and E is the urban green land value.
The third step is that the calculation formula of the ecological service value of each land type is as follows: dj＝Aj*EjWherein DjIs the ecosystem service value corresponding to the jth land type, AjArea of the jth land type, EjAnd the service value is provided for the jth land type unit area ecosystem.
The calculation formula of the total service value of the different land type ecosystems in the fourth step is as follows: b isj＝∑Dj；BjAnd providing the total service value of the ecosystem corresponding to the jth land type.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a method for evaluating the environmental value of an ecological system, which is characterized in that the method comprises a step of carrying out steps on a city to form construction land and urban green land except green land on the basis of 5 types of land utilization type division, and the method is combined with an ecological service value evaluation method and a real estate value method (belonging to types of enjoyment price methods) to calculate the ecological service value of the ecological system.
Detailed Description
In order to make the technical solution of the present invention better understood, those skilled in the art will now make a further detailed description of the present invention with reference to the best embodiments.
The invention discloses an improved ecological system ecological service value evaluation method, which comprises the following steps:
, collecting basic data of an ecosystem, including land types and occupied areas thereof, wherein the land types include 5 types such as woodland, grassland, water, farmland, city and the like, dividing the city into construction land except green land and green land of an urban area in steps on the basis of the division of the 5 types of land utilization types, identifying the land utilization type of the ecosystem by using geographic remote sensing, measuring the corresponding occupied area, and filling in the table 1.
TABLE 1
The second step is that: and combining the change of the room price in the same ratio and the change of the room price in the same ratio to obtain the urban green land value of each region. The table shows the average value of the room prices of Beijing in 2012, and the urban green land values of different areas in different years can be calculated according to the rate of change of the room prices of other years or areas compared with the room prices of Beijing in 2012. The calculation formula of the urban green land values of different regions in different year shares is as follows: eia＝RiaX E; wherein EiaIs the urban green space value of the a-land area in i years, RiaThe rate of change of the room price of other years or regions compared with the room price of Beijing in 2012, and E is the urban green land value of Beijing in 2012 (16-43.79 ten thousand yuan/hectare). The average house price values of Beijing in 2003, 2012 and 2019 are shown in Table 2, and the urban green land value of a certain year is calculated according to the change rate of the house price.
TABLE 2
The third step: and calculating the ecological service value of each land type of a certain ecological system according to a method combining an ecological service value evaluation method and a real estate value method. Table 3 shows the ecological service value per unit area of each land type for different years in different regions. The calculation formula of the ecological service value of each land type is as follows: dj＝Aj*EjWherein D isjIs the ecosystem service value corresponding to the jth land type, AjArea of the jth land type, EjAnd the service value is provided for the jth land type unit area ecosystem.
TABLE 3
The fourth step: calculating the total ecological service value of a certain ecological system, wherein the calculation formula of the total ecological service value of different land types of the ecological systems is as follows: b isj＝∑Dj；BjAnd the total service value of the ecosystem corresponding to the jth land type is obtained. According to the formula, the change of the ecological service value brought by the change of the land type caused by city development can be estimated. Fill in to table 4 after the calculation is completed.
TABLE 4
Examples
Taking the central urban area of Beijing as an example, the basic data of 2003 and 2019 years, including land types and occupied areas thereof, of the central urban area of Beijing are collected. Geographic remote sensing is used for identifying the land utilization type of a certain Beijing central urban area, and the corresponding occupied area is measured, and the result is shown in a table 5.
TABLE 5
Knowing the average value of the room prices of Beijing 2003 and 2019, we calculate the formula E according to the urban green land values of different regions in different yearsia＝RiaAnd XE, the urban green land value of a certain area in a certain year is calculated, and the result is shown in a table 6.
TABLE 6
The ecological service value of each land type of an ecological system is calculated according to a method combining an ecological service value evaluation method and a real estate value method, and the land utilization classes of different years and different soils in the urban area of Beijing center are given in Table 7And ecological service value of unit area. The calculation formula of the ecological service value of each place type is Dj＝Aj*Ej；
TABLE 7
And adding the ecological values of the ecological systems with different land types to obtain the total ecological service value of the urban area of the Beijing center, and filling the total ecological service value into a table 8 after the calculation is finished. The calculation formula of the total service value of the ecosystems with different land types is as follows: b isj＝∑Dj。
TABLE 8
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1, improved ecosystem ecological service value evaluation method, characterized by comprising the following steps:
, collecting basic data of the ecosystem, including land types and occupied areas thereof, wherein the land types include 5 types of woodland, grassland, water, farmland and city, dividing the city into construction land except green land and green land of urban area by steps on the basis of 5 types of land utilization type division;
the second step is that: the urban green land values of all the places are obtained by combining the change of the room price in the same ratio and the change of the room price in the same ratio;
the third step: calculating the ecological service value of each land type of the ecological system according to a method combining an ecological service value evaluation method and a real estate value method;
the fourth step: calculating the total value of ecological services of a certain ecological system; and estimating the change of the ecological service value brought by the change of the land type caused by city development.
2. The method as claimed in claim 1, wherein the green space value is calculated in a manner of Eia＝RiaX E; wherein EiaIs the urban green land value of area a in i years, RiaThe rate of change of the room price of other years or areas compared with the room price of Beijing in i year; and E is the urban green land value.
3. The improved ecological service value evaluation method for the ecosystem according to claim 1, wherein the calculation formula of the ecological service value of each land type in the third step is as follows: dj＝Aj*EjWherein DjIs the ecosystem service value corresponding to the jth land type, AjArea of the jth land type, EjAnd the service value is provided for the jth land type unit area ecosystem.
4. The improved ecosystem ecological service value evaluation method according to claim 1, wherein the total service value of the different land type ecosystems in the fourth step is calculated by the following formula: b isj＝∑Dj；BjAnd providing the total service value of the ecosystem corresponding to the jth land type.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113469537A (en) * | 2021-07-07 | 2021-10-01 | 西南交通大学 | Urban greenbelt sporopollen sensitization risk value calculation method based on weather and population density |
| CN113657939A (en) * | 2021-08-19 | 2021-11-16 | 青海师范大学 | Estimation method for service value space of wetland ecosystem |
| CN114037351A (en) * | 2021-11-29 | 2022-02-11 | 西华大学 | Ecosystem service value evaluation model, establishing method and application |
| CN114841560A (en) * | 2022-04-29 | 2022-08-02 | 甘肃农业大学 | Ecological service efficacy evaluation method based on urban land utilization |
| CN116070956A (en) * | 2023-02-14 | 2023-05-05 | 四川师范大学 | Method for evaluating planning benefit of homeland space |
| CN116993182A (en) * | 2023-09-26 | 2023-11-03 | 中国测绘科学研究院 | Double-scale urban green space comprehensive service capability measurement and evaluation method |
-
2019
- 2019-09-29 CN CN201910933394.9A patent/CN110738404A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113469537A (en) * | 2021-07-07 | 2021-10-01 | 西南交通大学 | Urban greenbelt sporopollen sensitization risk value calculation method based on weather and population density |
| CN113469537B (en) * | 2021-07-07 | 2023-04-07 | 西南交通大学 | Urban greenbelt sporopollen sensitization risk value calculation method based on weather and population density |
| CN113657939A (en) * | 2021-08-19 | 2021-11-16 | 青海师范大学 | Estimation method for service value space of wetland ecosystem |
| CN114037351A (en) * | 2021-11-29 | 2022-02-11 | 西华大学 | Ecosystem service value evaluation model, establishing method and application |
| CN114841560A (en) * | 2022-04-29 | 2022-08-02 | 甘肃农业大学 | Ecological service efficacy evaluation method based on urban land utilization |
| CN116070956A (en) * | 2023-02-14 | 2023-05-05 | 四川师范大学 | Method for evaluating planning benefit of homeland space |
| CN116993182A (en) * | 2023-09-26 | 2023-11-03 | 中国测绘科学研究院 | Double-scale urban green space comprehensive service capability measurement and evaluation method |
| CN116993182B (en) * | 2023-09-26 | 2023-12-29 | 中国测绘科学研究院 | Double-scale urban green space comprehensive service capability measurement and evaluation method |
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