[1]李伟霄,徐 军*,姚雅情,等.全球变暖背景下青藏高原三江源地区植被指数(NDVI)时空变化特征探讨[J].山地学报,2021,(4):473-482.[doi:10.16089/j.cnki.1008-2786.000612]
 LI Weixiao,XU Jun*,YAO Yaqing,et al.Temporal and Spatial Changes in the Vegetation Cover(NDVI) in the Three-River Headwater Region, Tibetan Plateau, China under Global Warming[J].Mountain Research,2021,(4):473-482.[doi:10.16089/j.cnki.1008-2786.000612]
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全球变暖背景下青藏高原三江源地区植被指数(NDVI)时空变化特征探讨()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2021年第4期
页码:
473-482
栏目:
山地环境
出版日期:
2021-07-25

文章信息/Info

Title:
Temporal and Spatial Changes in the Vegetation Cover(NDVI) in the Three-River Headwater Region, Tibetan Plateau, China under Global Warming
文章编号:
1008-2786-(2021)4-473-10
作者:
李伟霄12徐 军1*姚雅情1张志才1
1. 河海大学 水文水资源学院,南京 210098; 2. 南京大学 金陵学院,南京 210089
Author(s):
LI Weixiao12 XU Jun1* YAO Yaqing1 ZHANG Zhicai1
1. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China; 2. Nanjing University Jinling College, Nanjing 210089, China
关键词:
三江源区 植被指数(NDVI) 时空变化 土壤湿度 青藏高原
分类号:
Q948.112
DOI:
10.16089/j.cnki.1008-2786.000612
文献标志码:
A
摘要:
深入探讨近期三江源地区植被覆盖度随全球气候变暖的时空变化过程对三江源国家公园与生态文明建设具有重要意义。已有研究从不同视角对三江源地区生态环境变化进行了探讨,但对三江源地区复杂的地理环境以及全球变暖背景下的生态系统变化及其影响研究仍显薄弱,特别是对近期气候变暖对植被覆盖程度变化的影响研究更为缺乏。本文利用NASA官方网站下载的2006—2015年十年的植被NDVI数据产品,分析了三江源地区地表植被十年的时空变化特征及其影响因素。结果显示:(1)三江源地区植被NDVI具有显著的季节变化特征,年变化呈现出波动并且有微弱上升的趋势,三江源地区植被覆盖整体呈现趋好的态势;(2)植被覆盖度的空间变化表现出在三江源地区的东、南部较好、西北部较差的状况;(3)植被覆盖度的趋好变化主要受夏季主导,这和气候变暖、区域降水增加有关,与夏季土壤湿度增大有显著关系,但“整体趋好、局部恶化”的状况仍不容忽视。本研究可为揭示三江源地区植被覆盖度的变化过程与变化规律和生态修复提供科学依据。

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备注/Memo

备注/Memo:
收稿日期(Received date):2021-04-01; 改回日期(Accepted date): 2021-07-23
基金项目(Foundation item):自然资源部127专项课题(515050912)。 [Ministry of Natural Resources of the People’s Republic of China 127 Special Project(515050912)]
作者简介(Biography):李伟霄(1985-),男,甘肃兰州人,硕士研究生,主要研究方向:自然环境与生态。[LI Weixiao(1985-), male, born in Lanzhou, Gansu province, M. Sc. candidate, research on geography environment and ecology] E-mail: 29954650@qq.com
*通讯作者(Corresponding author):徐军(1966-),女,博士,副教授,主要研究方向:自然地理学和遥感与GIS研究。[XU Jun(1966-), female, Ph.D., associate professor, research on physical geography and remote sensing and GIS] E-mail: navy@hhu.edu.ac
更新日期/Last Update: 2021-07-30