| 台兰河绿洲灌区土地利用变化与水资源动态研究 |
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| 引用本文： | 孙栋元,赵成义,彭冬梅,李菊艳,闫映宇,魏恒.台兰河绿洲灌区土地利用变化与水资源动态研究[J].水土保持通报,2010,30(3):158-162. |
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| 作者姓名： | 孙栋元 赵成义 彭冬梅 李菊艳 闫映宇 魏恒 |
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| 作者单位： | 1. 中国科学院,新疆生态与地理研究所,绿洲生态与荒漠环境重点实验室,新疆,乌鲁木齐,830011;中国科学院,研究生院,北京,100049
2. 中国科学院,新疆生态与地理研究所,绿洲生态与荒漠环境重点实验室,新疆,乌鲁木齐,830011 |
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| 基金项目： | 国家973项目，国家科技支撑计划项目，国家重点基金项目，中国科学院知识创新项目 |
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| 摘 要： | 基于2000年和2005年的遥感影像,利用RS,GIS及景观生态学方法,对台兰河绿洲灌区2000-2005年的土地利用进行监测,并分析了不同时期台兰河绿洲灌区水资源开发利用程度.对研究区土地利用与水资源动态变化关系进行了分析.结果表明,2000-2005年耕地面积和水域面积年均增加分别为3 603.8 hm2和151.4 hm2;绿洲林地和草地大面积减少,减少量分别为2 247.07 hm2和14 325.9 hm2,相应地绿地面积减少了165 72.97 hm2;草地和林地等生态用地的减少是灌区耕地增加的主要来源,转移比例分别为13.97%和5.93%.地表来水量不断减少的情况下,灌区地下水开采量从1989年的5.91×106m3增加到2003年的1.39×107m3,灌溉面积和机井数量不断增大,地下水开采强度日益增加,地下水水位呈日益下降的趋势.农业用水所占比例过大,生态用水逐渐缩减.
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| 关 键 词： | 台兰河 绿洲灌区 土地利用 水资源 生态用水 |
| 收稿时间： | 2009/10/5 0:00:00 |
| 修稿时间： | 2009/12/20 0:00:00 |
Dynamics of Water Resources and Land Use in Oasis Irrigation Area in Tailan River Watershed |
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| SUN Dongyuan,ZHAO Chengyi,PENG Dongmei,LI Juyan,YAN Yingyu and WEI Heng.Dynamics of Water Resources and Land Use in Oasis Irrigation Area in Tailan River Watershed[J].Bulletin of Soil and Water Conservation,2010,30(3):158-162. |
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| Authors: | SUN Dongyuan ZHAO Chengyi PENG Dongmei LI Juyan YAN Yingyu and WEI Heng |
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| Institution: | Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Based on the TM images of the oasis irrigation area in Tailan River in 2000 and 2005 and using the RS, GIS, and landscape ecology method, this paper calculated the transformation matrix of the landscape mosaics and analyzed the relationship between the land use change and the dynamics of runoff and groundwater resources and their exploitation in the oasis irrigation area. Results showed that from 2000 to 2005, farmland area and water area increased and the annual average increased 3603. 8 and 151. 4 hm2, respectively. The forest and grassland decreased constantly and were reduced by 2247. 07 and 14325. 9 hm2 . In all, the greenbelt decreased 16 572. 97hm2 . The grassland and forest turned into farmland from transformation matrix and the ratio was 13. 97 % and 5. 93 %, respectively. Although runoff decreased distantly, the quantity of exploited groundwater increased drastically from 5. 9 ×105 m3 in 1989 to 1. 39 ×107 m3 in 2003. As a result, the area of irrigated field and the quantity of wells increased quickly. Moreover, groundwater resources were exploited severely and the level of groundwater decreased instantly. The ratio of agricultural water to ecological water was irrational, agricultural water expanded quickly, and ecological water dwindled distinctly. |
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| Keywords: | Tailan River oasis irrigation area land use water resource ecological water use |
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