基于MODIS数据乌江流域植被覆盖变化与气候变化关系研究

doi:10.13466/j.cnki.lyzygl.2017.01.021

林业资源管理 ›› 2017, Vol. 0 ›› Issue (1): 127-134.doi: 10.13466/j.cnki.lyzygl.2017.01.021

基于MODIS数据乌江流域植被覆盖变化与气候变化关系研究

石悦樾¹(), 银正彤¹(), 郑文锋²

^1. 贵州大学资源与环境工程学院,贵州 550025
^2. 成都电子科技大学自动化工程学院,成都 610000

收稿日期:2016-12-09 修回日期:2016-12-26 出版日期:2017-02-28 发布日期:2020-10-03
通讯作者: 银正彤
作者简介:石悦樾(1993-),女(苗族),贵州省铜仁市人,在读硕士,主要研究方向是土地资源利用与保护。Email: 1056716599@qq.com
基金资助:
中国博士后科学基金(2016M592647);国家自然科学基金“基于立体视觉的动态在体软组织表面三维运动跟踪研究”(61305022);虚拟现实技术与系统国家重点实验室(BUAA-VR-16KF-11)

Study on the Response of Vegetation Cover Change and Climate Change in Wujiang River Basin Based on MODIS Data

SHI Yueyue¹(), YIN Zhengtong¹(), ZHENG Wenfeng²

^1. College of Resources and Environmental Engineering,Guizhou University,Guiyang 550025,Guizhou China
^2. School of Automation,University of Electronic Science and Technology of China,Chengdu 610054,Sichuan,China

Received:2016-12-09 Revised:2016-12-26 Online:2017-02-28 Published:2020-10-03
Contact: YIN Zhengtong

摘要/Abstract

摘要：

分析乌江流域2001-2015年每年8月植被变化规律与气候间关系,得出植被覆盖时间和空间变化规律,为乌江流域生态保护提供参考依据,基于MOD13Q1,MODIS11 C3,TRMM3B43遥感数据产品,使用趋势分析法分析15年内NDVI变化趋势,简单相关分析、偏相关分析和复相关分析得出NDVI变化与气候变化关系,结果如下:15年中乌江流域NDVI整体呈上升趋势;NDVI变化与气温呈负相关,NDVI变化与降水呈正相关,降水对NDVI的促进作用高于气温的抑制作用;气温、降水对耕地影响最大,常绿针叶林次之;高程在1 000~2 000m的植被覆盖变化最大;沿江地带植被覆盖减少与乌江流域梯级开发有关;植被覆盖减少多在城市区。乌江流域降水驱动型植被占研究区27.75%,对气候响应较大的植被类型以耕地为主;非气温降水驱动型比例为72.25%,人类活动对乌江流域植被覆盖变化起主导作用。

关键词: 乌江流域, NDVI变化, 气候响应, 降水驱动型, 非气温降水驱动型

Abstract:

The relationship among NDVI,Temperature and precipitation changes in Augusts in Wujiang River basin between 2001 and 2015 was analyzed to get the temporal and spatial variation laws of vegetation change and provide reference for ecological protection of Wujiang River Basin.Based on the data of MOD13Q1,MODIS11 C3 and TRMM3B43,the trend analysis method was used to analyze the change trend situation of NDVI in 15 years.After that,simple correlation analysis,partial correlation analysis and multiple correlation analysis were used respectively to analyze the response of NDVI change with climate change.The results are as follows:the vegetation cover change is an overall upward trend in Wujiang River basin in 15 years.The relationship between vegetation cover change and the temperature is a negative correlation.The influence of rainfall on NDVI is greater than the temperature;The temperature and precipitation effects on cultivated land is the largest and on the evergreen coniferous forest is second.Elevation of vegetation cover change at the 1 000~2000m was the largest in the evergreen coniferous forest.The decrease of vegetation cover along the Wujiang River is related to the cascade development of Wujiang River Basin,NDVI changes in the area of the hydropower station were shown as the core outward radiation reduction.The increase of vegetation coverage in the study area was mainly concentrated in the urban suburb,which is dominated by coniferous forest and cultivated land.It is the result of human being and climate interaction.The percentage of precipitation driven vegetative coverage is 27.75% in Wujiang River basin,the climate response larger than vegetation type is given priority to cultivated land;The percentage of the non-temperature and precipitation driven vegetative coverage is 72.25% in Wujiang River basin and human activities on the wujiang river basin vegetation cover change plays a leading role.The increase of vegetation coverage in the study area is mainly concentrated in the urban suburb,which is dominated by coniferous forest and cultivated land.It is the result of human being and climate interaction.

Key words: Wujiang River basin, NDVI change, response of climate, precipitation driven, non-temperature and precipitation driven

中图分类号:

S718.45

石悦樾, 银正彤, 郑文锋. 基于MODIS数据乌江流域植被覆盖变化与气候变化关系研究[J]. 林业资源管理, 2017, 0(1): 127-134.

SHI Yueyue, YIN Zhengtong, ZHENG Wenfeng. Study on the Response of Vegetation Cover Change and Climate Change in Wujiang River Basin Based on MODIS Data[J]. FOREST RESOURCES WANAGEMENT, 2017, 0(1): 127-134.

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植被覆盖	气温/℃	降水/mm
常绿针叶林	-0.559^*	0.568^*
常绿阔叶林	-0.309	0.466
灌丛	-0.401	0.464
草地	-0.435	0.550^*
耕地	-0.568^*	0.601^*
年NDVI	-0.509	0.550^*

植被类型	气温/℃	降水/mm
常绿针叶林	-0.243	0.271
常绿阔叶林	-0.069	0.372
灌丛	-0.091	0.269
草地	-0.039	0.376
耕地	-0.222	0.321
年NDVI	-0.174	0.295

植被类型	复相关系数	植被类型	复相关系数
常绿针叶林	0.602	草地	0.551
常绿阔叶林	0.470	耕地	0.627
灌丛	0.470	年均NDVI	0.569

基于MODIS数据乌江流域植被覆盖变化与气候变化关系研究

Study on the Response of Vegetation Cover Change and Climate Change in Wujiang River Basin Based on MODIS Data

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