Dynamics of Water Resources and Land Use in Oasis Irrigation Area in Tailan River Watershed

SUN Dongyuan; ZHAO Chengyi; PENG Dongmei; LI Juyan; YAN Yingyu; WEI Heng

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Dynamics of Water Resources and Land Use in Oasis Irrigation Area in Tailan River Watershed

- Dynamics of Water Resources and Land Use in Oasis Irrigation Area in Tailan River Watershed
- Bulletin of Soiland Water Conservation Vol. 29, Issue 3, Pages: 158-162(2010)
- 作者机构：
  
  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
  2. 中国科学院研究生院,北京,100049
- 作者简介：
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- Published：2010
- 稿件说明：
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SUN Dongyuan, ZHAO Chengyi, PENG Dongmei, et al. Dynamics of Water Resources and Land Use in Oasis Irrigation Area in Tailan River Watershed[J]. Bulletin of Soiland Water Conservation, 2010, 29(3): 158-162.
DOI：

SUN Dongyuan, ZHAO Chengyi, PENG Dongmei, et al. Dynamics of Water Resources and Land Use in Oasis Irrigation Area in Tailan River Watershed[J]. Bulletin of Soiland Water Conservation, 2010, 29(3): 158-162. DOI：

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3603.8hm

和151.4hm

;绿洲林地和草地大面积减少

减少量分别为2247.07hm

和14325.9hm

相应地绿地面积减少了16572.97hm2;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5.91×106m

增加到2003年的1.39×107m

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。

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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