任强,龙爱华,杨永民,刘静

• 1:新疆维吾尔自治区水资源中心
• 2:中国水利水电科学研究院

摘要(Abstract)：

针对塔里木河流域综合治理后生态环境的变化状况及植被的恢复状况等热点问题,基于遥感时空变化分析方法从土地利用、地表水体和植被覆盖度的时空变化方面分析了近20年来塔里木河干流生态环境的变化状况。结果表明:(1)塔里木河干流土地利用受到人类活动的影响显著,自2000年以来,塔里木河干流耕地面积增加显著,净增2 229 km~2,草地面积整体下降,萎缩3 157 km~2;(2)综合治理以来,下游河段2009—2018时段水体出现频率明显高于2000—2008时段,水体出现频率提高约15%;(3)2000年以来,塔里木河流域的植被覆盖度持续增加,特别是下游河段植被覆盖度增加明显,覆盖度增加18%。但中、上游流域的植被覆盖度的增加趋势主要贡献来源于耕地,中上游地区耕地的增加仍会对塔里木河流域的生态保护和恢复造成一定的影响。

关键词(KeyWords)： 塔里木河流域;遥感监测;植被覆盖度;土地利用;水资源;干旱;人类活动;气候变化

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2017YFC0404301,2017YFC1502406,2017YFC0405803,2016YFA0601602);; 中国水科院科研专项(J20145B032017);; 新疆维吾尔自治区流域规划委员会重大咨询项目(403-1005-YBN-FT6I-2;403-1005-YBN-FT6I-7)

作者(Author): 任强,龙爱华,杨永民,刘静

DOI: 10.13928/j.cnki.wrahe.2021.03.012

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