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[1]LIU Yan-xu,LI Chun-yue,REN Zhi-yuan,et al.Land Eco-sensitivity Assessment Based on LUCC in Ecological City[J].Research of Soil and Water Conservation,2012,19(04):125-130.

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Land Eco-sensitivity Assessment Based on LUCC in Ecological City

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 04 Page number: 125-130 Column: Public date: 2012-08-20

Title:: Land Eco-sensitivity Assessment Based on LUCC in Ecological City

Author(s):: LIU Yan-xu¹, LI Chun-yue², REN Zhi-yuan^1,2, WEN Wen³; 1. College of Tourism and Environment Sciences, Shaanxi Normal University, Xi’an 710062, China;
2. Center for Land Resources Research in Northwest China, Shaanxi Normal University, Xi’an 710062, China;
3. Urban and Rural Planning and Design Institute of Shaanxi Province, Xi’an 710032, China

Keywords:: land use degree; sensitivity assessment; Shangluo City

CLC:: Q148;X826

DOI:: -

Abstract:: Land eco-sensitivity assessment is an important method in analyzing regional Eco-environmental safety. This article is based on the studies of land use and coverage change with the interpretation result from Landsat images. It analyzes the land use degree of Shangluo City and gave the land eco-sensitivity classification, which included soil and water conservation, disaster prevention and ecological protection. Then an improved classification model was taken through the gray model and the variation coefficient. By contrasting sensitivity in each level of land use degree change, the ecological recovery mode in study area was analyzed. The results showed: the land use degree in Shangluo City has been declined from 1990 to 2009, large area converted form cropland to forest which gave a better environment; the sensitivities of partition based on the index level showed the middle sensitive area was the largest. According to the variation coefficient gave the more reasonable proportion, the partition was improved based on uncertainties. Because of the least amount of land use degradation area was taken in high sensitive region, it was considered that the ecological construction model in study area was still worth discussing.

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