干旱区研究

Arid Zone Research >

2015 , Vol. 32 >Issue 5: 1024 - 1031

DOI: https://doi.org/10.13866/j.azr.2015.05.27

Others

Ecological Security Assessment and Countermeasures of Hunshandake Desertification Control Regions

  • CHI Yan-yan ,
  • XU Kai-peng ,
  • ZHANG Hui-yuan
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  • 1. Chinese Academy for Environmental Planning, Beijing 100012;
    2. Chinese Research Academy of Environmental Sciences, Beijing 100012

Received date: 2014-02-15

  Revised date: 2014-05-09

  Online published: 2015-10-14

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Abstract

Ecological security research is a hotspot of research on the current large-scale ecology problems. Hunshandake region is one of top ten sand in China,mainly composed of fixed and semi-fixed dunes of sand landscape; its edge area has become one of the important dust activity sources of Beijing-Tianjin region in recent years. Regional ecological security pattern is significant for regional sustainable development. As an important area of maintenance sand-fixing functions,the ecological security of Hunshandake desertification control regions is particularly important. This research tried to establish index system of ecological security evaluation based on vegetation growth,land cover pattern and soil erosion of Hunshandake,through analyzing the influence factors of desertification process. Three indicators evaluation results were identified and integrated into an overall ecological security assessment by using remote sensing and GIS technology. Results showed,relatively unsafe areas accounts for 35.42% of the regional lands,unsafe areas and very unsafe areas accounts for 3.42% and 0.05% of the regional lands respectively. From 2000 to 2008,natural landscapes changed to deserts in parts of center areas,account for 6.84% of the regional lands. In addition,natural landscapes changed to crop land in parts of southern and eastern areas,account for 1.19% of the regional lands. With the further research of ecological security evaluation index,evaluation method and complete data,there will be more accurate evaluation results. On the basis of ecological security assessment of Hunshandake desertification control regions,combination with analysis of economic and social development stress,regional ecological security countermeasures were put forward.

Key words： desertification control; ecological security; assessment; countermeasures; Hunshandake

Cite this article

CHI Yan-yan , XU Kai-peng , ZHANG Hui-yuan . Ecological Security Assessment and Countermeasures of Hunshandake Desertification Control Regions[J]. Arid Zone Research, 2015 , 32(5) : 1024 -1031 . DOI: 10.13866/j.azr.2015.05.27

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