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  • CN 62-1070/P
  • ISSN 1000-694X
  • 双月刊 创刊于1981年
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水文与水资源

艾比湖流域植被生态需水量

  • 范亚云 ,
  • 郭玉川 ,
  • 卢刚 ,
  • 陈丽华 ,
  • 张晓玉 ,
  • 何学敏 ,
  • 杨建军
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  • 1. 新疆大学 资源与环境科学学院, 新疆 乌鲁木齐 830046;
    2. 新疆大学 绿洲生态重点实验室, 新疆 乌鲁木齐 830046;
    3. 新疆大学 干旱生态环境研究所, 新疆 乌鲁木齐 830046;
    4. 新疆维吾尔自治区水土保持生态环境监测总站, 新疆 乌鲁木齐 830046;
    5. 新疆艾比湖湿地国家级自然保护区管理局, 新疆 博乐 833400
范亚云(1991-),女,新疆塔城市人,硕士研究生,主要从事干旱区蒸散发研究。E-mail:1446108246@qq.com

收稿日期: 2017-02-08

  修回日期: 2017-05-02

  网络出版日期: 2018-11-06

基金资助

国家自然科学基金项目(51269030)

Vegetation Ecological Water Requirement of Ebinur Lake Watershed

  • Fan Yayun ,
  • Guo Yuchuan ,
  • Lu Gang ,
  • Chen Lihua ,
  • Zhang Xiaoyu ,
  • He Xuemin ,
  • Yang Jianjun
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  • 1. College of Resource and Environment Sciences, Xinjiang University, Urumqi 830046, China;
    2. Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China;
    3. Institute of Aid Eco-environmental Science, Xinjiang University, Urumqi 830046, China;
    4. General Station of Water and Soil Conversation and Eco-environmental Monitoring of Xinjiang, Urumqi 830000, China;
    5. Administrative Bureau of the National Nature Reserve in the Ebinur Wetland, Bole 833400, Xinjiang, China

Received date: 2017-02-08

  Revised date: 2017-05-02

  Online published: 2018-11-06

摘要

基于遥感数据,通过SEBAL模型估算蒸散量,计算艾比湖流域不同植被类型下植被生长季(59月)的生态需水量。结果表明:研究区植被主要为牧草地、灌木林地、耕地、乔木林地,面积分别为13 944km2(50%)、8 071km2(29%)、5 022km2(18%)、566km2(2%)。SEBAL模型估算的日蒸散量7月最大,为4.36mm。5、6、8、9月日蒸散量分别为4.26、4.07、4.24、4.15mm。SEBAL模型估算结果整体相对误差在10%以内,在允许范围内。20002015年生长季植被生态需水量整体上呈现出增加-减少-增加的变化趋势,2000、2005、2010、2015年分别为151.003×108、149.611×108、144.431×108、136.374×108m3。各植被类型下的生态需水量相比,牧草地 > 灌木林地 > 耕地 > 乔木林地,牧草地约占总生态需水量的53%~55%,而灌木林地、耕地的生态需水量分别占21%~25%、19%~20%,乔木林地的生态需水量所占比例最小,仅为2%~3%。

本文引用格式

范亚云 , 郭玉川 , 卢刚 , 陈丽华 , 张晓玉 , 何学敏 , 杨建军 . 艾比湖流域植被生态需水量[J]. 中国沙漠, 2018 , 38(4) : 865 -871 . DOI: 10.7522/j.issn.1000-694X.2017.00038

Abstract

The ecological water requirement of different vegetation types within growing season in the Ebinur Lake watershed is calculated with SEBAL model and remote sensing data. The results show that the vegetation area is classified into 4 kinds, which are grassland, shrub land, farmland, timber forest, and the area are 13 944 km2, 8 071 km2, 5 022 km2, 566 km2, respectively, occupying 50%, 29%, 18%, 2% respectively. Based on SEBAL model, the daily evapotranspiration is estimated from May to September. The results indicate that the daily evapotranspiration in July reach highest with 4.36 mm, and it is 4.26 mm, 4.07 mm, 4.24 mm, and 4.15 mm in May, June, August, September respectively. The whole error of the SEBAL model results is less than 10%. There was an increase-decrease-increase tendency for the calculation results of vegetation eco-water demand during the growing season from 2000 to 2015. The ecological water requirement of different vegetation types indicates as grassland > shrub land > farmland > timber forest. The ecological water requirement of grassland accounts for 53%-55%, shrub land and farmland occupied 21%-25%,19%-20%, respectively. The least is timber forest, only 2%-3%.

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