[1]LUO Jinling,XIE Yuchu,LIU Qiuhua,et al.Spatiotemporal Patterns and Hot-Spots of the Trade-off and Synergy Relationship Among Ecosystem Services in Nanliujiang River Basin[J].Research of Soil and Water Conservation,2023,30(05):397-407.[doi:10.13869/j.cnki.rswc.2023.05.053.]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 05
Page number:
397-407
Column:
Public date:
2023-08-10
- Title:
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Spatiotemporal Patterns and Hot-Spots of the Trade-off and Synergy Relationship Among Ecosystem Services in Nanliujiang River Basin
- Author(s):
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LUO Jinling1,2, XIE Yuchu1,2,3, LIU Qiuhua1,2, TONG Kai1,2, HU Baoqing1,2
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(1.Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning 530001, China; 2.Key Laboratory of Earth Surface Process and Intelligent Simulation, School of Geography and Planning, Nanning Normal University, Nanning 530001, China; 3.Huanjiang Observation and Research Station for Karst Ecosystems, CAS, Huanjiang, Guangxi 547100, China)
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- Keywords:
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ecosystem service; temporal and spatial variation; trade offs; hot-spots; Nanliujiang River Basin
- CLC:
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X171
- DOI:
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10.13869/j.cnki.rswc.2023.05.053.
- Abstract:
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[Objective] Nanliujiang River Basin(NRB)is a typical watershed of land-sea transition zone in Beibu Gulf Economic Zone of Guangxi, and the rapid economic development brought great pressure to the ecological environment. Trade-off and synergy of ecosystem services and their interrelated changes, hot spots in the NRB had great significance for the sustainable development in this economic area were quantitatively analyzed. [Methods] Based on multi-source data of remote sensing images, DEM, meteorology, soil, field observation and investigation, the InVEST model, GIS, R and GeoDa software were comprehensively used to calculate the four key ecosystem services of food supply(FS), carbon storage(CS), biodiversity maintenance(BM)and soil conservation(SC)from 2000 to 2020, and to analyze the spatialtemporal characteristics and their inter-related changes of trade-off and synergy between ecosystem services. The spatial heterogeneity and hot spots of ecosystem services at the town scale were explored. [Results] Food supply decreased, CS, BM and SC increased in general. The FS with the CS, BM and SC were trade-offs relationships, and their trade-offs relationships were increasing during the period of 2000—2020, while the relationship between adjustment services(CS and SC)and support service(BM)was synergistic, and showed the trend of weakening gradually. The areas with high trad-off intensity between the FS-BM and FS-CS mainly concentrated in the urban-rural fringe area of Yulin City, farming area and river valley of Xiaojiang in Pubei county. The high intensity of synergistic among CS, BM and SC concentrated in forest areas of the middle reaches in the NRB with high vegetation coverage. Moreover, the hot spots of ecosystem services mainly distributed in mountain forest areas and nature reserves, while the high-value clusters of food supply services were mainly located in the Yuzhou Plain, Bobai Basin and the lower reaches of the Delta with frequent human activities. The hot-spot areas of primary biodiversity maintenance service services were mainly located in nature reserves, forests area in the mountain and hills, while the hot-spot areas distribution of SC concentrated in the ecotones of agriculture and forestry in the low Darong mountain. [Conclusion] The overall change of ecosystem service in the NRB was on an upward trend, and the trade-off and synergistic relationship between different ecosystem services had obvious spatial heterogeneity. In the future, synergistic development of ES should be promoted spatially for optimizing and ensuring the ecological space.