[1]何金苹,徐长春,李晓菲,等.开都-孔雀河流域NDVI动态变化及其与气温和降水的联系[J].水土保持研究,2018,25(06):329-334.
　HE Jinping,XU Changchun,LI Xiaofei,et al.Change Trend of NDVI and Its Response to Temperature and Precipitation in Long Time Series in Kaidu—Kongqi River Basin[J].Research of Soil and Water Conservation,2018,25(06):329-334.
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开都-孔雀河流域NDVI动态变化及其与气温和降水的联系

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 25 期数: 2018年06期 页码: 329-334 栏目: 出版日期: 2018-10-26
Title:
Change Trend of NDVI and Its Response to Temperature and Precipitation in Long Time Series in Kaidu—Kongqi River Basin
作者:
何金苹1,2, 徐长春1,2, 李晓菲1,2, 杨童童1,2, 何旦旦1,2, 鲁斯达姆1,2
1. 新疆大学 资源与环境科学学院, 乌鲁木齐 830046;
2. 新疆大学 绿洲生态教育部重点实验室, 乌鲁木齐 830046
Author(s):
HE Jinping1,2, XU Changchun1,2, LI Xiaofei1,2, YANG Tongtong1,2, HE Dandan1,2, Lusidamu1,2
1. College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;
2. Key Laboratory of Oasis Ecology, Ministry of Education, Xinjiang University, Urumqi 830046, China
关键词:
NDVI; 时空特征; 相关分析; 开都—孔雀河
Keywords:
NDVI; spatiotemporal characteristics; correlation analysis; Kaidu-Kongqi River
分类号:
TP79;P467
摘要:
基于2000—2014年开都—孔雀河流域的MODIS NDVI数据，采用最大合成法、偏相关分析法，结合气象站同期降水与气温数据，研究流域近15年NDVI时空动态，并分析了其与气温和降水的关系。结果表明：（1）研究区NDVI多年平均呈北部和中部高，南部和东部低的空间分布态势；（2）近15年开都—孔雀河流域植被退化区域大于植被改善区域，退化区域面积占研究区总面积的9.1%，主要集中在和静县山区；改善区域面积占总面积的6.33%，主要集中于博湖绿洲和库尔勒市及周边；84.57%的区域NDVI基本保持不变，主要集中于尉犁县；（3）植被覆盖2002年与2010年有明显改善，2001年、2004年有明显退化，其他年份退化和改善程度不一；（4）研究区NDVI对降水和气温变化均具滞后性且滞后水平存在显著的空间差异；（5）气温对NDVI的影响明显高于降水对NDVI的影响。
Abstract:
The MODIS NDVI data were selected from 2000 to 2014 in Kaidu—Kongqi River Basin. We used MVC, partial correlation analysis, precipitation and temperature data of meteorological stations in the same period to analyze the annual and inter-annual change trend of NDVI in recent 15 years in the region and the response to precipitation and temperature changes. The results showed that: (1) NDVI presented a high trend in the north and middle in the study area, the lower levels in the parts of the south and the east from the point of view of space distribution; (2) during the last 15 years, the vegetation degradation area was larger than that of the vegetation improvement area in Kaidu—Kongqi River Basin with respect to inter-annual change trend, the degradation area accounted for 9.1% of the study area, mainly concentrated in the mountains of Hejing County; the improved area percentage was 6.33% of the total area, mainly concentrated in the Bohu Oasis and the Korla City and the surrounding areas; and 84.57% of the region where NDVI was basically unchanged mainly concentrated in Yuli County; (3) NDVI improved significantly in 2002 and 2010 in terms of the annual change trend, but NDVI showed different degrees of degradation in the other years; (4) NDVI in the study area had hysteresis to precipitation and temperature, and the lag levels had obvious spatial differences; (5) the influence of temperature on NDVI was significantly higher than that of precipitation.

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备注/Memo

收稿日期:2017-12-28;改回日期:2018-01-16。
基金项目:国家自然科学基金“基于水资源变化的干旱内陆区典型流域绿洲适宜规模研究”（41561023）
作者简介:何金苹(1990-),女,河南商丘人,在读硕士研究生,研究方向为干旱区水资源与环境。E-mail:hs_jp17@126.com
通讯作者:徐长春(1977-),女,江苏赣榆人,副教授,博士,主要从事干旱区气候、水文与水资源研究。E-mail:xcc0110@163.com

更新日期/Last Update: 1900-01-01