JOURNAL OF NATURAL RESOURCES ›› 2018, Vol. 33 ›› Issue (10): 1742-1754.doi: 10.31497/zrzyxb.20170937

• Resource Ecology • Previous Articles     Next Articles

Identifying the Benefit Areas of Wind Erosion Prevention in the Key Ecological Function Area of Grassland at the Northern Foot of Yinshan Mountain

XIAO Yu1,2, XIE Gao-di1,2, ZHEN Lin1,2, LU Chun-xia1,2, XU Jie1,2   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-09-08 Revised:2018-02-08 Online:2018-10-20 Published:2018-10-20
  • Supported by:
    National Key R & D Program, No. 2016YFC0503706 and 2016YFC 0503403; National Natural Science Foundation of China, No. 31400411.

Abstract: Wind erosion is a serious environmental problem in the arid and semi-arid agriculture and animal husbandry ecotone in the north. In this study, we used the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model to simulate dust trajectories when wind speeds are equal to or greater than the threshold for dust transport (5.7 m/s), assuming no vegetation cover in the key ecological function area of grassland at the northern foot of Yinshan Mountain. These simulated trajectories represented the flow paths prevented from the wind erosion by the ecosystems within the northern foot of Yinshan Mountain. The service benefit areas were determined by interpolating these trajectories. The frequency with which the trajectories passed through each grid was taken as a proxy for the benefit associated with the wind erosion prevention realized by people in the grid. We also determined the benefits associated with land cover, population and GDP in the service benefit areas. The results show that: 1) Most of the wind erosion prevention in the grassland ecological function area in 2010 occurred in spring, and the flow path mainly extends to the eastern and southeastern areas. 2) The benefit areas were estimated to cover 46% of the total area of China, mainly located in the eastern and southern areas of the function area. 3) The benefit population and GDP accounted for 75% of the total population of China and 67% of the total GDP of China in 2010. Based on this research, we extracted a quantitative relationship between the key ecological function area and the service benefit areas and identified the actual beneficiaries. This work may provide support in terms of scientific knowledge that can be used by decision makers to develop strategies, such as ecological compensation in order to mitigate sandstorms in the study area.

Key words: flow of ecosystem services, flow path, service benefit area, the northern foot of Yinshan Mountain, wind erosion prevention

CLC Number: 

  • X171