[1]YANG Weihong,ZHANG Junmin,LI Songxia,et al.Study on the Characteristics of Landscape Differentiation and Its Hydro-Ecological Effect in Manas River Basin[J].Research of Soil and Water Conservation,2015,22(03):73-78.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 03
Page number:
73-78
Column:
Public date:
2015-06-28
- Title:
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Study on the Characteristics of Landscape Differentiation and Its Hydro-Ecological Effect in Manas River Basin
- Author(s):
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YANG Weihong1, ZHANG Junmin1, LI Songxia2, XU Liping1, TANG Xiangling1, WANG Ling1
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1. College of Science, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region 832000, China;
2. College of Economic Management, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region 832000, China
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- Keywords:
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land use; landscape differentiation; MODS; landscape index; hydro-ecological effect; Manas River Basin
- CLC:
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F301.24;X143
- DOI:
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- Abstract:
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Land use and landscape change are the core issues of global change research. Manas River Basin is a typical mountain-oasis-desert ecosystem in the arid areas. Based on the 3S technology and using the method of quantitative analysis the characteristics of landscape differentiation and its hydro-ecological effect in Manas River Basin were examined. The results showed that: (1) the artificialization and intensive trend of land use were obvious, ecological landscape continued to weaken; (2) land use changes presented the regional differences due to the special mountain-oasis-desert ecosystem, land use tended to highly altitude artificialization and structure stability in oasis area, then tended to highly sensitive and fragile ecology in periphery of oasis; (3) in mountain areas, oasis areas and desert areas, the characteristics of landscape differentiation was different, the development of foreland pluvial fan led to the increase of landscape diversity in mountain areas; the distribution of patch became more nearby and tended to simplification and normalized in oasis areas; landscape pattern change was more complicated in desert areas, giving that the priority of the dominance and dominance index of water area decreased, the fragmentation of unused land increased; (4) the landscape change disrupted the hydrologic cycle in the upper reaches of Manas River, weakened the water resources allocation in the lower reaches of Manas River.