Changes in the area of inland lakes in arid regions of central Asia during the past 30 years
文献类型：期刊论文
| 作者 | Bai ; Chen ; Li ; Yang ; Fang ; Jie1 ; Xi1 ; Junli1 ; Liao1 ; Hui1 |
| 刊名 | Environmental Monitoring and Assessment
 |
| 出版日期 | 2010 |
| 期号 | 1-4页码:1--10 |
| 关键词 | Alpine lakes - Area-changes - Central Asia - Comprehensive analysis - Flat area - Human activities - Human impact - Hydrological data - Lake areas - Landsat imagery - Meteorological data - Multi-temporal - Normalized difference water index - Precipitation variation - Regional climate changes - Threshold segmentation - Total surface area - Water cycle - Water usage |
| ISSN号 | 0167-6369 |
| 中文摘要 | Inland lakes are major surface water resource in arid regions of Central Asia. The area changes in these lakes have been proved to be the results of regional climate changes and recent human activities. This study aimed at investigating the area variations of the nine major lakes in Central Asia over the last 30 years. Firstly, multi-temporal Landsat imagery in 1975, 1990, 1999, and 2007 were used to delineate lake extents automatically based on Normalized Difference Water Index (NDWI) threshold segmentation, then lake area variations were detailed in three decades and the mechanism of these changes was analyzed with meteorological data and hydrological data. The results indicated that the total surface areas of these nine lakes had decreased from 91,402.06 km2 to 46,049.23 km2 during 1975-2007, accounting for 49.62% of their original area of 1975. Tail-end lakes in flat areas had shrunk dramatically as they were induced by both climate changes and human impacts, while alpine lakes remained relatively stable due to the small precipitation variations. With different water usage of river outlets, the variations of open lakes were more flexible than those of other two types. According to comprehensive analyses, different types of inland lakes presented different trends of area changes under the background of global warming effects in Central Asia, which showed that the increased human activities had broken the balance of water cycles in this region. © 2010 Springer Science+Business Media B.V. (31 refs.) |
| 收录类别 | EI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/10724]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Bai,Chen,Li,et al. Changes in the area of inland lakes in arid regions of central Asia during the past 30 years[J]. Environmental Monitoring and Assessment,2010(1-4):1--10. |
| APA | Bai.,Chen.,Li.,Yang.,Fang.,...&Hui1.(2010).Changes in the area of inland lakes in arid regions of central Asia during the past 30 years.Environmental Monitoring and Assessment(1-4),1--10. |
| MLA | Bai,et al."Changes in the area of inland lakes in arid regions of central Asia during the past 30 years".Environmental Monitoring and Assessment .1-4(2010):1--10. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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