IMHE OpenIR  > 山区发展研究中心
青藏高原东缘典型流域生态系统服务的地形梯度效应——以岷江上游为例
Alternative TitleTOPOGRAPHIC GRADIENT EFFECTS OF TYPICAL WATERSHED ECOSYSTEM SERVICES IN THE EASTERN TIBETAN PLATEAU A CASE STUDY OF THE UPPER REACHES OF MINJIANG RIVER
朱昌丽1; 张继飞2; 赵宇鸾1; 刘春艳1
Corresponding Author张继飞
2017
Source Publication长江流域资源与环境
ISSN1004-8227
Volume26Issue:10Pages:1687-1699
Other Abstract

山地生态系统受地形因素影响在垂向上呈现出明显的空间分异特征,厘清山地生态系统服务的空间分异特征是区域土地利用和生态系统管理的基础。以青藏高原东缘典型流域岷江上游为研究区,将2000、 2005、2010年土地利用数据及DEM数据作为数据源,运用地形位指数、相对变化率和敏感性系数,研究土地利用变化下的生态系统服务价值的地形梯度效应。结果表明: (1)岷江上游土地利用类型以林地和草地为主,约占总面积的60%和30%; 2000~ 2010年,1~ 4级地形位上除未利用地外的其他土地利用类型分布指数变化较为明显,林地和耕地不断降低,草地、水域和建设用地不断升高。(2)研究期内岷江上游生态系统服务价值总量和各类型生态系统服务的价值随地形位的升高均呈倒V形变化; 2000~ 2010年,研究区1~ 12级地形位上生态系统服务价值呈增加趋势,13~ 20级地形位上呈减小趋势。(3) 2000~ 2010年,各地形位上生态系统服务价值变化趋势与研究区一致;除1级地形位上生态系统服务价值变化幅度略高于研究区外,2~ 20级地形位上的变化幅度与研究区基本一致。(4)研究区各土地利用类型的单位面积生态系统服务价值敏感性系数均小于1,单位面积生态系统服务价值的变化缺乏弹性,研究结果可信; 2000~ 2010年各地形位上水域、草地和荒漠敏感性系数不断上升,林地和耕地敏感性系数不断下降。通过对土地利用变化驱动下的生态系统服务价值的地形梯度效应进行定量测度,明晰了生态系统服务价值随地形梯度变化所呈现的空间分异规律及其变化特征,为保护区域生态系统,合理利用土地资源提供理论依据。

;

he spatial characteristics of mountain ecosystems are affected by terrain factors. Clarifying the spatial differentiation characteristics of mountain ecosystem services is the basis of regional land use and ecosystem management. This study took the Upper Reaches of the Minjiang River (URMR) as study areas. The terrain gradient characteristics of ecosystem service value under land-use change were identified using terrain index, relative rate of change and sensitivity coefficient based on land-use data and DEM data. The results showed that: (1) The land-use types in the URMR were dominated by woodland and grassland,which accounted for 60% and 30% of the total area,respectively. During 2000 to 2010,the change of terrain index was obvious in 1- 4 terrain areas. (2) The total value of ecosystem services and the value of individual ecosystem services in the URMR showed an inverted V-shape change with the increase of topographic area. During 2000 to 2010,the ecosystem service value (ESV) increased in 1-12 terrain areas and reduced in 13 - 20. (3) During 2000 to 2010,the trend of ESV in each terrain was consistent with that of the study area. In 1 terrain area,the change of ESV in the topographic level was slightly higher than that of the study area. In 2 - 20 terrain areas,the change was nearly consistent with the study area. (4) The sensitivity coefficient of the ESV in per unit area of land-use types in the study area was less than 1 and the change of the ESV in per unit area was lack of flexibility. It showed that the results were credible. During 2000 to 2010,the sensitivity coefficient of the water,grassland and desert kept rising in each terrain area,whereas woodland and cultivated land kept declining. Based on the quantitative measurement of the terrain gradient effects of the ESV driven by land-use change,the spatial differentiation and its change of ESV with the change of terrain gradient were clarified. The results can provide the theoretical basis for protecting regional ecosystem and rational use of land resources in the future.

Keyword土地利用 生态系统服务 地形位指数 地形梯度 岷江上游 青藏高原东缘
Subject AreaX171.1
DOI10.11870/cjlyzyyhj201710021
Indexed ByCSCD ; 北大中文核心
Language中文
CSCD IDCSCD:6112385
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20915
Collection山区发展研究中心
Affiliation1.贵州师范大学地理与环境科学学院
2.中国科学院、水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
朱昌丽,张继飞,赵宇鸾,等. 青藏高原东缘典型流域生态系统服务的地形梯度效应——以岷江上游为例[J]. 长江流域资源与环境,2017,26(10):1687-1699.
APA 朱昌丽,张继飞,赵宇鸾,&刘春艳.(2017).青藏高原东缘典型流域生态系统服务的地形梯度效应——以岷江上游为例.长江流域资源与环境,26(10),1687-1699.
MLA 朱昌丽,et al."青藏高原东缘典型流域生态系统服务的地形梯度效应——以岷江上游为例".长江流域资源与环境 26.10(2017):1687-1699.
Files in This Item:
File Name/Size DocType Version Access License
青藏高原东缘典型流域生态系统服务的地形梯(2602KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[朱昌丽]'s Articles
[张继飞]'s Articles
[赵宇鸾]'s Articles
Baidu academic
Similar articles in Baidu academic
[朱昌丽]'s Articles
[张继飞]'s Articles
[赵宇鸾]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[朱昌丽]'s Articles
[张继飞]'s Articles
[赵宇鸾]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 青藏高原东缘典型流域生态系统服务的地形梯度效应_以岷江上游为例_朱昌丽.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.