基于RUE与NDVI的人类活动对牧区植被变化干扰强度的研究——以川西北江河源区为例

doi:10.14088/j.cnki.issn0439-8114.2018.23.012

湖北农业科学 ›› 2018, Vol. 57 ›› Issue (23): 48-54.doi: 10.14088/j.cnki.issn0439-8114.2018.23.012

基于RUE与NDVI的人类活动对牧区植被变化干扰强度的研究——以川西北江河源区为例

丁鹏凯^1,2, 邵怀勇^1,2, 仙巍³, 李波⁴, 易霞^1,2, 杨青林^1,2

1.成都理工大学地球科学学院,成都 610059;
2.国土资源部地学空间信息技术重点实验室,成都 610059;
3.成都信息工程大学资源环境学院,成都 610225;
4.四川省地矿局四0三地质队,四川峨眉 614200

收稿日期:2018-05-28 出版日期:2018-12-10 发布日期:2019-12-18
通讯作者: 邵怀勇（1978-）,男,山东泰安人,教授,博士,主要从事山区资源环境遥感、山地生态地质环境评估与GIS空间建模等研究,（电子信箱）huaiyongshao@163.com。
作者简介:丁鹏凯（1994-）,男,甘肃白银人,在读硕士研究生,研究方向为资源环境遥感、数字国土,（电话）18582313312（电子信箱）1275274421@qq.com
基金资助:
国家自然科学基金项目（41401659）; 四川省科技厅重点研发项目（2017SZ0088）; 四川省科技厅应用基础计划项目（2015JY0145）

Study on the Interference Intensity of Human Activities to Vegetation Changesin Pastoral Areas Based on RUE and NDVI——A Case Study in the Headwater Region of Northwest Sichuan

DING Peng-kai^1,2, SHAO Huai-yong^1,2, XIAN Wei³, LI Bo⁴, YI Xia^1,2, YANG Qing-lin^1,2

1.School of Earth Science Chengdu University of Technology,Chengdu 610059,China;
2.Key Lab of Information Technology & Application of Land and Resources Chengdu University of Technology,Chengdu 610059,China;
3.College of Resources and Environment Chengdu University of Information Technology,Chengdu 610225,China;
4.403 Brigade,Sichuan Geology and Minera Resources Exploration and Development Bureau,Emei 614200,Sichuan,China

Received:2018-05-28 Online:2018-12-10 Published:2019-12-18

摘要/Abstract

摘要： 利用归一化植被指数（NDVI）与降水利用率（RUE）结合最小二乘法进行趋势分析,分析2000—2014年人类活动对川西北江河源区植被变化的干扰强度。结果表明,2000—2014年研究区植被强度总体好转,2000—2010年研究区植被恢复良好,2010—2014年研究区植被局部显著退化区域明显多于显著恢复区域。2000—2014年研究区内人为因素对植被变化的干扰总体以负向干扰为主,负向干扰面积占研究区总面积的57.59%,正向干扰面积占21.85%。其中,2000—2005年研究区人类活动对植被的变化主要呈中度正向干扰,2005—2010年主要呈轻度正向干扰,而2010—2014年人为负向干扰严重。人类活动对研究区内植被变化的负向干扰以轻度负向干扰为主,主要分布于石渠、阿坝、红原、若尔盖四县,而强度人为负向干扰主要位于石渠县;人为正向干扰以中度人为正向干扰为主,主要集中于石渠县北部;甘孜、色达、壤塘三县无明显人为干扰。

关键词: NDVI, RUE, 植被变化, 趋势分析, 人类活动

Abstract: Trend analysis was calculated by using normalized difference vegetation index（NDVI） and precipitation utilization （RUE） combined with least square method to determine the interference intensity of human activities on the vegetation changes in the source regions of rivers in Northwest Sichuan from 2000 to 2014. Research results showed that the vegetation intensity in the study area improved generally from 2000 to 2014. During 2000 to 2010, vegetation intensity in the study area recovered well. The significantly degraded areas of vegetation were significantly more than the significant recovery areas in study area from 2010 to 2014. In 2000—2014, the interference of anthropogenic factors on vegetation changes was dominated by negative interferences. The negative interference area accounted for 57.59% of the total area and the positive interference area accounted for 21.85%. Among them, human activities in the study area from 2000 to 2005 mainly showed a moderate positive disturbance on the vegetation changes, mainly mild positive disturbance from 2005 to 2010, and negative disturbance in 2010 to 2014 is serious. In the study area,negative interferences of human activities on vegetation changes are dominated by slight negative disturbance, mainly distributed in Shiqu,Aba, Hongyuan and Ruoergai counties. Man-made negative interference is mainly located in Shiqu county. Man-made positive interference is concentrated on man-made positive interference, mainly concentrated in the northern part of Shiqu county. No obvious human interference areas are mainly distributed in Ganzi, Seda, Rangtang counties.

Key words: NDVI, RUE, vegetation changes, trend analysis, human activities

中图分类号:

Q948.15

丁鹏凯, 邵怀勇, 仙巍, 李波, 易霞, 杨青林. 基于RUE与NDVI的人类活动对牧区植被变化干扰强度的研究——以川西北江河源区为例[J]. 湖北农业科学, 2018, 57(23): 48-54.

DING Peng-kai, SHAO Huai-yong, XIAN Wei, LI Bo, YI Xia, YANG Qing-lin. Study on the Interference Intensity of Human Activities to Vegetation Changesin Pastoral Areas Based on RUE and NDVI——A Case Study in the Headwater Region of Northwest Sichuan[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(23): 48-54.

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基于RUE与NDVI的人类活动对牧区植被变化干扰强度的研究——以川西北江河源区为例

Study on the Interference Intensity of Human Activities to Vegetation Changesin Pastoral Areas Based on RUE and NDVI——A Case Study in the Headwater Region of Northwest Sichuan

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