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干旱区科学  2010, Vol. 2 Issue (3): 157-166    DOI: 10.3724/SP.J.1227.2010.00157
  Research Articles 本期目录 | 过刊浏览 | 高级检索 |
Processes and trends of the land use change in Aksu watershed in the central Asia from 1960 to 2008
1 Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
Processes and trends of the land use change in Aksu watershed in the central Asia from 1960 to 2008
DeCheng ZHOU, GePing LUO, Lei LU
1 Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
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摘要 Land use change (LUC) in trans-boundary watersheds is of great importance to environmental assessment. The Aksu River is the largest trans-boundary river crossing Kyrgyzstan and China, but there was little information on the LUC of the watershed. We quantitatively investigated the processes and trends of its LUC by using analytic models based on the land use data derived from the remote sensing images and topographic maps. The LUC was in the quasi-balanced status with a slight difference between the loss and the gain of the area for most land use types during the period of 1960-1990, whereas transferred to the unbalanced status with significant difference between the loss and gain of the area during the period of 1990-2008. At the same time, land conversion direction changed from two-way transition to one-way transition for the most land use types. The integrated rate of net change of land use during the period of 1990-2008 is 2.1 times of that during the period of 1960-1990. Information on the processes and trends of LUC is valuable for better understanding the environmental changes across the whole trans-boundary watershed, and helpful to decision-making management for Kyrgyzstan and China.
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DeCheng ZHOU
GePing LUO
Lei LU
关键词:  airborne nitrogen inputs  15N pool dilution method  sand culture system  biological indicators    
Abstract: Land use change (LUC) in trans-boundary watersheds is of great importance to environmental assessment. The Aksu River is the largest trans-boundary river crossing Kyrgyzstan and China, but there was little information on the LUC of the watershed. We quantitatively investigated the processes and trends of its LUC by using analytic models based on the land use data derived from the remote sensing images and topographic maps. The LUC was in the quasi-balanced status with a slight difference between the loss and the gain of the area for most land use types during the period of 1960-1990, whereas transferred to the unbalanced status with significant difference between the loss and gain of the area during the period of 1990-2008. At the same time, land conversion direction changed from two-way transition to one-way transition for the most land use types. The integrated rate of net change of land use during the period of 1990-2008 is 2.1 times of that during the period of 1960-1990. Information on the processes and trends of LUC is valuable for better understanding the environmental changes across the whole trans-boundary watershed, and helpful to decision-making management for Kyrgyzstan and China.
Key words:  airborne nitrogen inputs    15N pool dilution method    sand culture system    biological indicators
收稿日期:  2010-04-01      修回日期:  2010-05-15           出版日期:  2010-09-07      发布日期:  2010-09-07      期的出版日期:  2010-09-07
基金资助: 

Key Topics in Innovation Engineering of Chinese Academy of Sciences (KZCX2-YW-307-3); National Basic Research Program of China (2009CB825105)

通讯作者:  GePing LUO    E-mail:  luogp@ms.xjb.ac.cn
引用本文:    
DeCheng ZHOU, GePing LUO, Lei LU. Processes and trends of the land use change in Aksu watershed in the central Asia from 1960 to 2008[J]. 干旱区科学, 2010, 2(3): 157-166.
DeCheng ZHOU, GePing LUO, Lei LU. Processes and trends of the land use change in Aksu watershed in the central Asia from 1960 to 2008. Journal of Arid Land, 2010, 2(3): 157-166.
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http://jal.xjegi.com/CN/10.3724/SP.J.1227.2010.00157  或          http://jal.xjegi.com/CN/Y2010/V2/I3/157
[1] ChunE HE, XueJun LIU, Christie PETER, Fangmeier ANDREAS, FuSuo ZHANG. Estimating total nitrogen deposition in agroecosystems in northern China during the wheat cropping season[J]. 干旱区科学, 2010, 2(1): 2-8.
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