[1]WANG Xiuming,LIU Xucheng,LONG Yingxian,et al.Spatial-Temporal Changes and Influencing Factors of Ecosystem Services in Shaoguan City Based on Improved InVEST[J].Research of Soil and Water Conservation,2020,27(05):381-388.
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Spatial-Temporal Changes and Influencing Factors of Ecosystem Services in Shaoguan City Based on Improved InVEST
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 05
Page number:
381-388
Column:
目次
Public date:
2020-08-20
- Title:
- Spatial-Temporal Changes and Influencing Factors of Ecosystem Services in Shaoguan City Based on Improved InVEST
- Keywords:
- InVEST model; ecosystem service function; water conservation; soil conservation; geographical detector
- CLC:
- S157; X171
- DOI:
- -
- Abstract:
- Based on the improved InVEST model, the spatial-temporal evolution trends of water conservation, soil conservation, biodiversity, and carbon storage service functions in Shaoguan City during the four periods from 1990 to 2017 were evaluated, and the main factors affecting service functions were analyzed by using methods such as geographic detectors. The results showed that:(1)the water conservation and soil conservation per unit area in the study area first increased and then decreased, mainly due to the impact of interannual meteorological conditions; habitat quality and carbon storage had been decreasing year by year, and affected by land use change;(2)in the four periods from 1990 to 2017, the areas with low values of ecosystem services mainly distributed in the central cities of Shaoguan and Nanxiong, Wengyuan, and Lechang basins; the areas with high values were different, and areas with the high values of water conservation distributed in the south of the study area, which was consistent with the distribution of precipitation; the areas with high soil conservation values concentrated in the Dadong Mountain at the middle of Lechang-Ruyuan County and Yaoling at the junction of Shixing Renhua County, which was consistent with the topography; the distribution areas with high values of biodiversity and carbon storage was highly consistent with land types; with the expansion of Shaoguan's central and county districts, the area with low value of ecosystem service functions continued to expand;(3)the analysis of geographic detectors indicated that the spatial heterogeneity of water conservation was mainly affected by land type and precipitation, habitat quality and carbon storage were mainly affected by land type, slope, and altitude, and soil conservation was affected by various factors. Except soil conservation services, the impacts of land types on spatial heterogeneity of ecosystem service functions were significantly greater than other factors;(4)meteorological factors largely determined the inter-annual differences in ecosystem service functions, and land types were the main factors affecting their spatial distribution.
- References:
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Last Update:
2020-08-25