[1]李佩君ab,左德鹏*,徐宗学,等.基于地形梯度的雅鲁藏布江流域土地利用及景观格局分析[J].山地学报,2022,(1):136-150.[doi:10.16089/j.cnki.1008-2786.000661]
 LI Peijunab,ZUO Depeng*,XU Zongxue,et al.Land Use/cover and Landscape Patterns Based on Terrain in the Yarlung Tsangpo River Basin, China[J].Mountain Research,2022,(1):136-150.[doi:10.16089/j.cnki.1008-2786.000661]
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基于地形梯度的雅鲁藏布江流域土地利用及景观格局分析
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2022年第1期
页码:
136-150
栏目:
山区发展
出版日期:
2022-02-04

文章信息/Info

Title:
Land Use/cover and Landscape Patterns Based on Terrain in the Yarlung Tsangpo River Basin, China
文章编号:
1008-2786-(2022)1-136-15
作者:
李佩君1a1b2左德鹏1* 徐宗学1高晓曦1
1.北京师范大学 a.水科学研究院, b.城市水循环与海绵城市技术北京市重点实验室, 100875, 北京2.上海市水利管理事务中心, 200002, 上海
Author(s):
LI Peijun1a1b2 ZUO Depeng1* XU Zongxue1 GAO Xiaoxi1
1. a. College of Water Sciences; b.Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing Normal University, Beijing 100875, China; 2. Shanghai Water Conservancy Management Center, Shanghai 200002, China
关键词:
土地利用/覆被 景观指数 地形要素 分布指数 冗余分析 雅鲁藏布江
分类号:
P901
DOI:
10.16089/j.cnki.1008-2786.000661
文献标志码:
A
摘要:
研究不同地形梯度下高寒山区土地利用演变和景观破碎化,是对生态脆弱区保护与恢复精准施策的基础。雅鲁藏布江流域空间异质性明显,但现有研究多集中在子流域尺度,缺少像元尺度的深度探讨,无法对流域精细化管理提供足够的数据支持。本文选取高程、坡度、地形起伏度3个地形要素,分析1980—2015年雅鲁藏布江流域土地利用/覆被时空分布特征,并借助分布指数计算各地类在不同地形分级的优势度,基于冗余分析定量计算地形要素与景观格局指数相关关系。结果表明:(1)流域近30年土地利用/覆被结构变化较小,但空间异质性明显。草地为主要土地利用/覆被类型,林地和永久性冰川积雪大部分位于下游地区,耕地与城乡用地分布集中于中游;(2)自上游至下游平均海拔逐渐降低,坡度、地形起伏度逐渐增大。耕地、水体、城乡用地对地形要素依赖性最强,林地、未利用地、永久冰川积雪适应性较强。3000~4000 m高程带、6°~15°坡度带、小起伏山地带是由人类活动频繁区向自然生态系统的过渡带,可作为土地利用变异转折点;(3)由上游至下游景观格局破碎化程度逐渐增大、景观多样性逐渐提高。高程与景观聚集度呈较弱负相关关系。坡度和地形起伏度与景观聚集程度呈明显负相关,与景观丰富程度呈正相关。本研究可为不同地形梯度下生态脆弱区研究与保护提供科学依据,也可为高寒流域土地利用/覆被规划与保护及综合开发利用精准施策、一地一策提供理论基础。

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备注/Memo

备注/Memo:
收稿日期(Received date):2020-10-09; 改回日期(Accepted date):2022-02-25
基金项目(Foundation item):国家自然科学基金(9164720019); 国家重点研发计划(2017YFC1502703); 北京市自然科学基金(8202030)。[National Natural Science Foundation of China(9164720019); National Key Research and Development Program of China(2017YFC1502703); Beijing Natural Science Foundation(8202030)]
作者简介(Biography):李佩君(1996-),女,山东青岛人,硕士,主要研究方向:水文与水资源。[LI Peijun(1996-), female, born in Qingdao, Shandong province, M.Sc., research on hydrology and water resource] E-mail: lipeij@foxmail.com
*通讯作者(Corresponding author):左德鹏(1985-),男,博士,副教授,主要研究方向:水文水资源与水环境。[ZUO Depeng(1985-), male, Ph.D., associate professor, research on hydrology, water resource and water environment] E-mail: dpzuo@bnu.edu.cn
更新日期/Last Update: 2022-01-30