2000—2013年塔里木河流域生长季NDVI时空变化特征及其影响因素分析

doi:10.11849/zrzyxb.20160141

自然资源学报 ›› 2017, Vol. 32 ›› Issue (1): 50-63.doi: 10.11849/zrzyxb.20160141

2000—2013年塔里木河流域生长季NDVI时空变化特征及其影响因素分析

罗敏^1,2, 古丽·加帕尔^1,*, 郭浩^1,2, 郭辉^1,2, 张鹏飞¹, 孟凡浩^1,2, 刘铁¹

1. 中国科学院新疆生态与地理研究所荒漠与绿洲国家重点实验室,乌鲁木齐 830011;
2. 中国科学院大学,北京 100049

收稿日期:2016-02-14 出版日期:2017-01-15 发布日期:2017-01-15
通讯作者: 古丽·加帕尔（1973- ）,女,博士,副研究员,主要从事干旱区植被遥感定量反演及生态遥感研究。E-mail: glmr@ms.xjb.ac.cn
作者简介:罗敏（1990- ）,女,博士研究生,主要从事水文水资源和遥感与地理信息系统研究。E-mail:luomin_1990@126.com *
基金资助:
新疆维吾尔自治区科技厅重大科技专项（201230117-1）; 国家自然科学基金项目（41171295）; 千人计划新疆项目（374231001）

Spatial-temporal Variation of Growing-season NDVI and Its Responses to Hydrothermal Condition in theTarim River Basin from 2000 to 2013

LUO Min^1,2, Guli JIAPAER¹, GUO Hao^1,2, GUO Hui^1,2, ZHANG Peng-fei¹, MENG Fan-hao^1,2, LIU Tie¹

1. State Key Laboratory of Dessert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 83011, China;
2. University of Chinese Academy of Science, Beijing 100049, China

Received:2016-02-14 Online:2017-01-15 Published:2017-01-15
Supported by:
A major grant from the Xinjiang Department of Science and Technology, No. 201230117-1; National Natural Science Foundation of China, No. 41171295; Thousand Youth Talents Plan of China (Xinjiang Project), No. 374231001.

摘要/Abstract

摘要：

受塔里木河流域综合治理工程实施和近期气候变化的影响,流域植被覆被时空分布产生一定的变化,厘清植被覆被与流域气候变化及人类活动的关系可以为塔里木河流域生态维护与治理提供科学参考依据。为此,论文以NDVI为指示因子,运用趋势分析、R/S分析、偏相关分析以及残差分析等方法,分析了2000—2013年综合治理工程期间NDVI的时空变化特征,并探讨及区分降水、气温气候因子以及人类活动对植被覆被变化的影响范围和程度,结果表明：1）2000—2013年,塔里木河流域植被生长季NDVI总体呈现增加趋势,增加速率为0.8%/10 a,平原区增速明显高于山区;且开都河-孔雀河流域山区、塔里木河干流的上、中游部分地区呈现比较明显的退化趋势。与此同时,塔里木河干流下游生长季NDVI持续改善。2）山区植被覆被变化主要受气候变化的影响,其中温度是高山区植被生长的主要限制因子,温度的增加促进植被的生长;中低山区以及出山口平原地区植被生长季NDVI变化是降水和温度共同作用的结果,且主要受降水的影响。降水与植被生长季NDVI变化呈正相关,温度与植被生长季NDVI变化呈负相关。3）平原绿洲区植被生长季NDVI增加主要是绿洲灌区面积不断增加以及塔里木河流域生态治理工程对植被恢复的结果,人类活动是该区域植被生长的主要驱动力。4）塔里木河干流生态闸工程在恢复下游植被的同时,也在一定程度上影响了上、中游地区的用水,尤其是导致中游植被出现退化趋势,退化速率约为0.1%/10 a。相关部门应进一步加强水资源的合理配置,充分发挥生态闸工程的水资源调度调控作用。

关键词: R/S分析, 气象因子, 塔里木河流域, 生长季NDVI

Abstract:

The spatial and temporal distribution of vegetation cover has undergone certain changes in the Tarim River Basin due to the impacts of comprehensive treatment project and recent climate change. Clarifying the relationship between the vegetation cover and the climate change as well as human activities can provide a scientific reference for ecological maintenance and management of Tarim River Basin. Hence, by using trend analysis, R/S analysis, partial correlation analysis and residual analysis, this study analyzed the spatial-temporal changes of NDVI in the growing season and distinguished the range and extent of the impacts of precipitation and temperature changes and human activities on vegetation cover change in the Tarim River Basin from 2000 to 2013. The results showed that: 1) The NDVI in the study area has been increasing with an average rate of 0.8%/10 a from 2000 to 2013. The changing rate in plains was significantly higher than that in mountains. The NDVI in growing season in the mountainous areas of Kaidu-Kongque River Basin and parts of the upstream and midstream of the Tarim River Basin presented obvious degradation trend. Meanwhile, NDVI in the downstream of the Tarim River Basin continued going up. 2) The vegetation cover change was mainly affected by climate change in mountain area and the temperature is the main determining factor. The increase of temperature promoted the growth of vegetation. The changes of the vegetation cover in middle-low mountains and the plain area of the mountain pass were the results of the combination of precipitation and temperature, and mainly affected by precipitation. The NDVI showed a positive correlation with precipitation and a negative correlation with temperature. 3) The increasing oasis irrigation area and the comprehensive treatment project for vegetation restoration led to the NDVI increase in the oasis. Human activities are the main driving force for vegetation growth in this area. 4) The ecological brake in the midstream of the Tarim River Basin restored the vegetation in the downstream, but it affected the water usage of the upstream and midstream to some extent. Especially for the midstream, the ecological brake led to the degradation of the vegetation with the rate of 0.1%/10 a. The relevant departments should further strengthen the reasonable allocation of the water resources and give full play to the role of the ecological brake for water resources regulation.

Key words: climate data, R/S analysis, Tarim River Basin, NDVI in the growing season

中图分类号:

Q948

罗敏, 古丽·加帕尔, 郭浩, 郭辉, 张鹏飞, 孟凡浩, 刘铁. 2000—2013年塔里木河流域生长季NDVI时空变化特征及其影响因素分析[J]. 自然资源学报, 2017, 32(1): 50-63.

LUO Min, Guli JIAPAER, GUO Hao, GUO Hui, ZHANG Peng-fei, MENG Fan-hao, LIU Tie. Spatial-temporal Variation of Growing-season NDVI and Its Responses to Hydrothermal Condition in theTarim River Basin from 2000 to 2013[J]. JOURNAL OF NATURAL RESOURCES, 2017, 32(1): 50-63.

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2000—2013年塔里木河流域生长季NDVI时空变化特征及其影响因素分析

Spatial-temporal Variation of Growing-season NDVI and Its Responses to Hydrothermal Condition in theTarim River Basin from 2000 to 2013

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