[1]ZHANG Wen-shuai,WANG Fei,MU Xing-min,et al.Spatio-temporal Characteristics of Land Use/Land Cover Change(LUCC) over the Past 25 Years in the Yan River Basin[J].Research of Soil and Water Conservation,2012,19(05):148-152,157.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 05
Page number:
148-152,157
Column:
Public date:
2012-10-20
- Title:
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Spatio-temporal Characteristics of Land Use/Land Cover Change(LUCC) over the Past 25 Years in the Yan River Basin
- Author(s):
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ZHANG Wen-shuai1,3, WANG Fei1,2, MU Xing-min1,2, LI Rui1,2, HE Yi2
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1. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. Graduate School of Chinese Academy of Sciences, Beijing 100049, China
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- Keywords:
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Yan River Basin; land use/land cover; spatio-temporal change
- CLC:
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F301.24
- DOI:
-
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- Abstract:
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Based on the two vector maps of land use and cover of 1980 and 2005 of Yan River Basin in the middle reaches of the Yellow River, the spatio-temporal land use and cover change(LUCC) was analyzed with methods of transition matrix, land use dynamic degree and barycenter transfer. The results showed as followings:(1) the areas of forests and cropland had significantly changed within the certain 25 years, and mainly from farmland to forestry, but the grassland and cropland were still the major part,accounting for 87% or more of the area. The areas of these three types of lands were more than 99% of that in the Yan River Basin;(2) only 3.89% of the total land changed, but the settlement land use area increased rapidly with an annual increase rate of 4.10%, of which mainly came from cropland and grassland;(3) the regional differences of LUCC were clear that the changing rate was greater in Ansai County than other counties induced by its active socio-economic activities;(4) the spatial characters of LUCC was quite even in the target region that the forests was shifted to the upper reaches and highland, and the barycenter of water bodies transferred to the lower reaches.