Research on the Evolution of System Services and Coordination of Ecological System Services in Guizhou Province
It is of great significance for the development of economy and ecology to explore the trade-off and synergistic rela-tionship between ecosystem services in the study area.This study has used methods such as median trend analysis,significance test,and partial correlation method to quantify the trade-off and synergistic relationship between net primary productivity(NPP),water source conservation(WY),and soil conservation(SC)of three ecosystem services in the Wumeng Mountains of Guizhou Prov-ince from 2015 to 2020.The results showed that:(1)median analysis and significance test showed that NPP in the study area was mainly characterized by general growth,while SC was mainly characterized by general degradation.The trend and significance of WY changed were not significant.(2)From the perspective of the proportion of changing trend areas,NPP mainly showed general growth,with an area accounting for 54%;WY is mainly characterized by general degradation,accounting for 61.17%of the area;SC was mainly characterized by general degradation,accounting for 67.81%.This indicated that the ecosystem services in the study area showed a degradation trend from 2015 to 2020,and there was no significant improvement in the ecological environment.(3)Using the partial phase relationship method,it can be inferred that NPP and WY are mainly weakly balanced;WY and SC ex-hibited a spatial balance in the north and a synergistic distribution in the south;NPP and SC exhibited synergy in the central and northeastern regions,while in the local areas of the northeast,southwest,and east,there is a trade-off relationship.(4)Among dif-ferent ecosystem types,only bare land NPP and WY showed significant synergy,while farmland,forests,shrubs,wetlands,and ur-ban ecosystems showed weak trade-offs.The ecosystem services and their related relationships in the Wumeng mountainous area of Guizhou have a spatial heterogeneity,and it is necessary to develop ecological economy according to local conditions..
Wu Meng-shan District in GuizhouEcosystem servicesWeighing and collaborationSpatial-temporal evolution
万方数据
维普
