img

Wechat

Adv search

Journal of Desert Research ›› 2021, Vol. 41 ›› Issue (6): 78-87.DOI: 10.7522/j.issn.1000-694X.2021.00088

Previous Articles     Next Articles

Spatial-temporal heterogeneity of ecosystem services trade-off synergy in the Yellow River Basin

Jie Yanga(), Baopeng Xieb(), Degang Zhanga   

  1. a.College of Pratacultural Science /, Gansu Agricultural University,Lanzhou 730070,China
    b.College of Management, Gansu Agricultural University,Lanzhou 730070,China
  • Received:2021-06-09 Revised:2021-07-19 Online:2021-11-20 Published:2021-12-17
  • Contact: Baopeng Xie

Abstract:

It is of great significance to explore the trade-off and synergy of ecological services in river basins and their scale effects for rational formulation of eco-environmental policies and effective allocation of environmental resources. Taking the Yellow River Basin as the research object, six periods of data in 1990, 1995, 2000, 2005, 2010 and 2018 were used to evaluate five ecological service: water yield, carbon stock, soil conservation, habitat quality and net primary productivity (NPP). Spearman correlation coefficient was used to analyze the trade-off relationship between the five ecological services in the whole basin and the secondary regions. The results show that there is a trade-off relationship between water yield, carbon stock and habitat quality at the whole basin scale, and there is a synergistic relationship among other services. The relationships between water yield and carbon stock, water yield and habitat quality, carbon storage and soil conservation, carbon stock and habitat quality, carbon stock and NPP, soil conservation and habitat quality are consistent with those of the whole Yellow River Basin. However, the relationships between water yield and soil conservation, water yield and NPP, soil conservation and NPP, and habitat quality and NPP are different among watersheds. From the histogram of correlation coefficient, it can be seen that the ecological service as a whole show obvious watershed differences and show the regional laws of upper, middle and lower reaches. Multi-scale evaluation of the trade-off and synergy between ecological services can provide reliable reference for formulating win-win policies for the development and ecological protection of the Yellow River Basin.

Key words: ecological service, trade-off and synergy, spatial heterogeneity, Yellow River Basin

CLC Number: