[1]艾嘉会,丁明军*,张 华,等.柯西河流域植被覆被变化特征及其土地利用背景分析[J].山地学报,2020,(6):904-915.[doi:10.16089/j.cnki.1008-2786.000566]
 AI Jiahui,DING Mingjun*,ZHANG Hua,et al.Temporal and Spatial Changes in the Vegetation Coverage of the Koshi River Basin and Associated Land Use Changes[J].Mountain Research,2020,(6):904-915.[doi:10.16089/j.cnki.1008-2786.000566]
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柯西河流域植被覆被变化特征及其土地利用背景分析
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2020年第6期
页码:
904-915
栏目:
山区发展
出版日期:
2021-05-01

文章信息/Info

Title:
Temporal and Spatial Changes in the Vegetation Coverage of the Koshi River Basin and Associated Land Use Changes
文章编号:
1008-2786-(2020)6-904-12
作者:
艾嘉会1丁明军12*张 华12张华敏1王贝贝1
1.江西师范大学 地理与环境学院,南昌 330022; 2. 鄱阳湖湿地与流域教育部重点实验室,南昌 330022
Author(s):
AI Jiahui1 DING Mingjun12* ZHANG Hua12 ZHANG Huamin1 WANG Beibei1
1. School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China; 2. Key Laboratory of Poyang Lake Wetland and Watershed Research Ministry of Education, Nanchang 330022, China
关键词:
植被 NDVI 土地利用 柯西河流域
分类号:
K903
DOI:
10.16089/j.cnki.1008-2786.000566
文献标志码:
A
摘要:
植被作为陆地生态系统的重要组成部分,其动态变化对于定量评估区域生态环境质量具有重要意义。本文以典型跨境流域——柯西河流域为例,基于2000—2017年MODIS-NDVI时序数据及土地利用数据,运用Mann-Kendall统计检验和Sen's趋势等方法分析该区域植被覆被的时空演变特征,并探讨该变化的土地利用背景。结果表明:(1)柯西河流域植被覆被空间分布差异明显,且NDVI值呈现“双峰”结构;(2)2000—2017年柯西河流域植被覆被整体呈现增加趋势,但存在着一定的空间分异。区域尺度上,中国境内、印度境内和尼泊尔境内植被均呈上升趋势,但变化幅度差异明显,表现为印度>尼泊尔>中国; 像元尺度上,植被改善的地区占整个研究区的87.74%,主要分布于中国境内中部地区和尼泊尔境内中、南部地区以及印度境内的部分区域; NDVI趋于降低的区域占整个研究区的12.26%,主要集中于尼泊尔境内的加德满都地区及主要公路沿线和河流沿岸地区;(3)植被变化趋势与地形因子(高程、坡度、坡向)显著相关,其空间分布表现出明显的地形指向性;(4)植被变化显著区域与土地利用变化典型地区高度一致。裸地和水体的转化导致局部植被覆被升高; 耕地和林地的转化导致局部地区植被覆被降低。研究结果可为柯西河流域土地利用政策的制定、生态环境的保护与建设、植被恢复及可持续发展提供一定的参考。

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备注/Memo

备注/Memo:
收稿日期(Received date):2020-04-26; 改回日期(Accepted date):2020-12-11
基金项目(Foundation item):中国科学院战略性先导科技专项资助(XDA20040201); 国家自然科学基金(41761144081); 江西师范大学研究生创新基金(YJS2019116)。 [Strategic Priority Research Program of Chinese Academy of Sciences(XDA20040201); National Natural Science Foundation of China(41761144081); Postgraduate Innovation Fund Project of Jiangxi Normal University(YJS2019116)]
作者简介(Biography):艾嘉会(1995- ),女,江西高安人,硕士研究生,主要研究方向:土地利用/覆被变化研究。[AI Jiahui(1995- ), female, born in Gaoan, Jiangxi province, M.Sc., candidate, research on land use/cover change] E-mail: 1184159536@qq.com
*通讯作者(Corresponding author):丁明军(1979- ),男,湖北谷城人,博士,教授,主要研究方向:土地利用/覆被变化研究。[DING Mingjun(1979- ), male, born in Gucheng, Hubei province, Ph.D., professor, research on land use/cover change] E-mail: dingmingjun1128@163.com
更新日期/Last Update: 2020-11-30