Landscape pattern characteristics of northern foothill belts along Tianshan Mountains
文献类型：会议论文
| 作者 | Cheng W. M. ; Zhou C. H. ; Zhu A. X. ; Li J. X. |
| 出版日期 | 2003 |
| 会议名称 | Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie) |
| 关键词 | oases expansion land use change Manas River Valley arid area oasization land-cover changes vegetation change dynamics |
| 页码 | 90-102 |
| 英文摘要 | This paper investigates the oasis expansion and land, use changes in and Manas River Valley using imageries of Landsat MSS, TM and ETM, land use and topographic maps. Over last 50 years, oasis area increased from 156.385km(2) in 1949 to 5042.440 km(2) in 2001. Oasis expansion process over last 50 years can be divided into oasization and urbanization stages according to the rate of increase. Farmland quickly increased from 156.4 km(2) in 1949 to 3639.5 km(2) in 1976 during the oasization stage with an annual increase rate of 129.004 km(2)/a. In urbanization stage from 1976 to 2001, urban area increased from 22.481 km(2) to 75.257 km(2) with an annual increase rate of 2.111 km(2)/a. The driving-force analysis reveals that human activities of reclamation and population growth played a major role in oasis expansion in Manas River Valley. With the oasis expansion, a series of eco-environment problems such as sand invasion, pasture degeneration, soil saltization and land abandonment have become more and more seriously. The issues of how to improve the efficiency of water resource. usage, protect mountain and desert environments, deal with saltization problems in oasis have become the most important research topics of oasis expansion and sustainable development over these oasis. |
| 收录类别 | CPCI |
| 会议录出版者 | Spie-Int Soc Optical Engineering |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| ISBN号 | 0-8194-4676-9 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25055]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Cheng W. M.,Zhou C. H.,Zhu A. X.,et al. Landscape pattern characteristics of northern foothill belts along Tianshan Mountains[C]. 见:Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie). |
入库方式： OAI收割
来源：地理科学与资源研究所
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