[1]XIAO Hongke,LI Hongzhong,WANG Li,et al.Changes of Land Use and Ecosystem Service Value in Guangdong-Hong Kong-Macao Greater Bay Area—A Case Study of Guangzhou-Foshan-Zhaoqing[J].Research of Soil and Water Conservation,2020,27(01):290-297.
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Changes of Land Use and Ecosystem Service Value in Guangdong-Hong Kong-Macao Greater Bay Area—A Case Study of Guangzhou-Foshan-Zhaoqing
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 01
Page number:
290-297
Column:
Public date:
2020-02-20
- Title:
- Changes of Land Use and Ecosystem Service Value in Guangdong-Hong Kong-Macao Greater Bay Area—A Case Study of Guangzhou-Foshan-Zhaoqing
- Keywords:
- land use change; ecosystem services value; sensitivity index; Guangdong-Hong Kong-Macao Greater Bay Area; Guangzhou-Foshan-Zhaoqing
- CLC:
- F301.2; X171.1
- DOI:
- -
- Abstract:
- Based on the interpretation data of remote sensing images of 1990, 2000, 2010 and 2015, we studied the characteristics of land use changes in Guangzhou-Foshan-Zhaoqing in the past 25 years by using the model analysis method. The ecosystem service value of different land use types in the study area from 1990 to 2015 were quantitatively estimated by using the ecosystem service value coefficient method and combining with the actual situation of study area, and its variation characteristics were also analyzed. The results showed that:(1)from 1990 to 2015, the areas of forestland and cultivated land continued to decrease, while artificial surface land increased gradually, the grassland decreased at first and then increased, while the wetland increased at first and then decreased, and the area of other land changed relatively complicated; the artificial surface had the highest degree of dynamics, followed by other land; the area of cultivated land transferred out was the most, and the area of the transferred artificial surface was the most;(2)the total value of ecosystem services in the study area showed a decreasing trend of firstly and then the decreasing trend year by year, with a total reduction of 359 million yuan in 25 years; the sum of the ecological service value of forestland and wetland dominated the total ecological service value; the continuous decline in the area of cultivated land made it the most obvious decline in the value of maintaining soil;(3)the sensitivity coefficient of each class was less than 1, showing that the value of ecosystem service in the study area lacked flexibility in its service value index, and the results were credible.
- References:
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Last Update:
2020-02-25