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[1]YANG Mei-ling,MI Wen-bao,LI Tong-sheng,et al.Eco-sensitivity Analysis and Protection in the Restricted Development of Ecological Zones, Ningxia Hui Autonomous Region[J].Research of Soil and Water Conservation,2014,21(03):103-108.

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Eco-sensitivity Analysis and Protection in the Restricted Development of Ecological Zones, Ningxia Hui Autonomous Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 03 Page number: 103-108 Column: Public date: 2014-06-28

Title:: Eco-sensitivity Analysis and Protection in the Restricted Development of Ecological Zones, Ningxia Hui Autonomous Region

Author(s):: YANG Mei-ling^1,2, MI Wen-bao¹, LI Tong-sheng², ZHOU Min-liang^2,3, WANG Ting-yu¹; 1. School of Resources and Environment Science, Ningxia University, Yinchuan 750021, China;
2. School of Urban and Environmental Science, Northwest University, Xi’an 710127, China;
3. Institute of Industrial Economics CASS, Beijing 100836, China

Keywords:: ecological sensitivity; soil erosion; land desertification; restrict development of ecological zones; GIS

CLC:: F062.2;P901

DOI:: -

Abstract:: As a special type of main functional areas in China, restricted exploitation area is one of the ecologically fragile, long-term underdeveloped areas in China. Also, it is a special complex area among China’s ecologic security, food security, and homeland security. So, it is one of the hot issues of academic concern. On the basis of analyzing and summarizing the relevant literature, with the township as the basic units, based on the main eco-environment problems in the Restricted Development Area of Ningxia Hui Autonomous Region, soil erosion and land desertification are chosen to carry out single factor and integrated appraisal of eco-sensitivity with GIS technology to analyze the eco-sensitivity in the Restricted Development Area of Ningxia Hui Autonomous Region. The results show that: (1) the major ecological problems in the study area are land desertification and soil erosion, spatial differentiation is significant. All the townships in the study area are ecological sensitivity, the townships in the central arid semiarid areas with sparse vegetation, strong sunshine, very little precipitation, the major ecological problems are land desertification; the townships in the southern loess hilly region with rapidly terrain slope, soil matrix loam, barren land, water erosion, the major environmental problems are soil erosion, there are four grades of eco-sensitivity, namely slight sensitive, moderately sensitive, highly sensitive, extremely sensitive, and 94.34% of the area belongs to the moderately sensitivity; (2) extremely sensitive and highly sensitive areas are fragile ecological environment area, system stability, development costs and repair costs are high, should be used as a key protection areas, and large-scale, high-intensity of industrialization and urbanization development activities should be prohibited; moderately sensitive areas are more vulnerable which have a certain amount of resistance to outside interference, within the scope of the ecological carrying, moderate development activities can be engaged; mildly sensitive and non-sensitive areas can be used as a suitable development zone, which allows a certain scope of industrialization and urbanization activities.

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