[1]JIANG Haoyu,CHEN Rongrong,YANG Chaoxian,et al.Characteristics of Spatiotemporal Dynamic Change in Ecological Land and Environment Effect in Western Plains[J].Research of Soil and Water Conservation,2021,28(02):203-209.
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Characteristics of Spatiotemporal Dynamic Change in Ecological Land and Environment Effect in Western Plains
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 02
Page number:
203-209
Column:
Public date:
2021-02-06
- Title:
- Characteristics of Spatiotemporal Dynamic Change in Ecological Land and Environment Effect in Western Plains
- CLC:
- X826; Q149
- DOI:
- -
- Abstract:
- To explore the characteristics of ecological land changes and the impact on the regional ecological environment, taking Guanghan City of Sichuan Province in the western plains as an example, we analyzed the spatial and temporal evolution characteristics of ecological land in the study area based on the land use transfer probability matrix and the center of gravity migration model, and evaluated the ecological environment effect caused by the evolution of ecological land in the study area by using service value and ecological sensitivity analysis and through the dimensions of taking ecological risks, providing ecological services, and balancing ecosystem. The results show that:(1)from 2000 to 2017, due to the impact of urbanization, the loss of ecological land in Guanghan City was serious, and a large number of ecological land on the edge of cities and towns were quickly converted into construction land; the total area of ecological land in the study area decreased by 9 769.51 hm2, the loss of ecological land was serious, the area of cultivated land decreased by 10 726.91 hm2, and the center of ecological land moved to the north;(2)the disturbance of the ecological land pattern caused by the expansion of construction land had brought pressure and risks to the regional ecological environment, and had a certain negative impact; the value of ecosystem services decreased by 17.11%, the area of highly sensitive and highly sensitive areas increased by 1 629.47 hm2 and 4 294.40 hm2, respectively, and the degree of ecological coordination decreased by 10.36%. The loss of ecological land in western plain area is serious in the process of rapid urbanization, and the environment is under greater pressure. The scientific management and restoration of ecological land should be strengthened to enhance the comprehensive management of land space environment.
- References:
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Last Update:
2021-02-10