[1]JIANG Liangliang,BAO Anming,LIU Hailong,et al.Study on the Repones Relationship Between Ecological Water Requirement and Landscape Pattern in Manas River Basin[J].Research of Soil and Water Conservation,2015,22(03):143-149.
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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:
143-149
Column:
Public date:
2015-06-28
- Title:
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Study on the Repones Relationship Between Ecological Water Requirement and Landscape Pattern in Manas River Basin
- Author(s):
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JIANG Liangliang1,2, BAO Anming1, LIU Hailong3, LI Junli1, CHANG Cun1
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1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. Xinjiang Key Laboratory for Environmental Pollution Monitoring and Risk Warning, Xinjiang Academy of Environmental Protection Science, Urumqi 830011, China;
3. College of Water Conservancy and Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China
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- Keywords:
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Manas River Basin; ecological water requirement; landscape pattern; RS; GIS
- CLC:
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TV214;P901
- DOI:
-
-
- Abstract:
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The typical region of Manas River Basin, which is dramatic exploitation and use of water and land resources in the arid area of the northwestern of China, was chosen. Based on GIS and RS technology, the observed weather data and FAO56 Penman Motith method, we calculated the ecological water requirement in the study area. We carried out landscape ecology research using three periods of land use patterns abstracted from TM data in 1990, 2000 and 2010 in Manas River Basin. Finally, this paper analyzed the relationship between ecological water requirement and the landscape pattern tentatively. The results showed that: (1) the spatial change trend was different, ecological water requirement would increase in the mountains, and reduce in the plain area, and the connected phenomenon appeared in the oasis of the west and north under landscape pattern analysis during the period from 2000 to 2100, the ecological environment would be destroyed; (2) in the mountains area, the increase of ecological water consumption resulted in the vegetation diversity index increase and contagion index decrease in the space, also, it caused the surrounding contagion index increase and diversity decrease with time; (3) in the oasis, there is no obvious relationship between ecological water demand quota and landscape pattern index in space. The ecological water consumption increased, however, the impact of human activities resulted in the surrounding contagion index decrease and diversity increase with time, which is in contrast to the conclusions of the mountains. Reduction of ecological water requirement quota would be conducive for the growth of vegetation. Otherwise, the ecological environment would be destroyed because of the influence of human activity.