[1]CHEN An,LI Jingji,WANG Maosheng,et al.Research for Change of Ecosystem Service and the Tradeoff-Synergy Relation of the YLN Basin in the Tibet Autonomous Region[J].Research of Soil and Water Conservation,2022,29(02):313-319+329.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 02
Page number:
313-319+329
Column:
Public date:
2022-03-20
- Title:
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Research for Change of Ecosystem Service and the Tradeoff-Synergy Relation of the YLN Basin in the Tibet Autonomous Region
- Author(s):
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CHEN An1, LI Jingji1,3, WANG Maosheng1, ZHANG Han2, BIAN Lijiao1, LI Wenting1, XU Wenlai1,3
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(1.College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China; 2.College of Earth Science, Chengdu University of Technology, Chengdu 610059, China; 3.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China)
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- Keywords:
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InVEST model; ecosystem services; soil conservation; water conservation; carbon storage
- CLC:
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X171.1
- DOI:
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- Abstract:
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For the effective allocation of environmental resources, clarifying the tradeoff relations among the ecosystem services is the important premise. The YLN Basin(the Basin of Yarlung Tsangpo River, Lhasa River, and Nianchu River)is the research case. Based on InVest model, this regional soil conservation, water conservation, and carbon storage between 1990 and 2018 were evaluated dynamically. This paper also adopted the other related analysis to discuss the tradeoff relations among the different services on the scales of basin and county respectively. The results show that:(1)from 1990 to 2018, the soil conservation and the carbon storage showed a fluctuating increasing trend, water production reduced; the high values of soil conservation, water production and carbon storage in per unit area all distributed in the Lhasa River valley in the eastern basin;(2)on scale of basin, there was a trade-off nexus between water conservation service and carbon storage service in 2010, and the other services all manifested synergistic nexus in the other years; on the scale of county, the relations of services mainly were occupied by synergistic nexus, nonetheless it possessed relatively intensive spatial heterogeneity;(3)the hotspot map illustrated that category 1 had largest proportion and it was increasing between 1990 and 2018, the main land type was low vegetation covered meadow; the proportions of the categories of 0 and 2 increased, the main land types were sandy land and high vegetation covered meadow; the proportion of category 3 reduced, the main land types were high vegetation covered meadow and shrubbery. Therefore, the 3 kinds of ecosystematic services have the relatively intensive spatial heterogeneity, and the synergistic nexus is the major one among the services that is alterable following the spatiotemporal change showing different degrees.