干旱区生态环境知识资源中心(Arid): 近40年科尔沁沙地植被时空变化及其驱动力

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	近40年科尔沁沙地植被时空变化及其驱动力
其他题名	Temporal and spatial changes and their driving forces of vegetation cover in Horqin Sandy Land in recent 40 years
	吕家欣; 李秀芬; 郑晓; 聂哲; 刘思嫱
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2020
卷号	39 期号:5 页码:1399-1408
中文摘要	科尔沁沙地是我国沙漠化土地防治的重点工程区。近些年来,受气候变化、生态工程建设和人类活动的影响,该区的植被生长发生了一定的变化。研究区域植被的动态变化,可为后期沙地的综合治理和工程的合理建设提供科学依据。基于此,以19812015年NOAA-NDVI、MODIS-NDVI数据及同期气象和社会经济数据为依托,采用一元线性回归和相关分析的方法,对科尔沁沙地NDVI的时空变化及驱动因素进行了研究。结果表明: (1) 19812015年NDVI整体呈波动的增长趋势(增速为0.00114 a~(-1));空间上NDVI呈增长趋势的区域(面积占68.8%)主要位于东南缘及中部部分地区,而研究区的西北缘呈降低趋势。(2)不同程度沙漠化区的NDVI均表现为先降低(19812000年)后上升(20012015年)的变化过程,说明前期遭受破坏的植被在后期得以恢复。(3)驱动力分析表明,降水和温度是驱动科尔沁沙地部分区域NDVI变化的影响因素;人口变化和生态工程的实施均驱动了区域内植被的时空变化;而经济的发展并不是该区植被变化的主要驱动因素。
英文摘要	Horqin Sandy Land is a key area for the project of desertification prevention and control in China. In recent years,ecological engineering construction,human activities and vegetation growth in this area have been affected by climate change to some extent. Understanding dynamic change of regional vegetation can provide scientific basis for the comprehensive control of the sandy land and reasonable construction of ecological engineering. Consequently,the spatialtemporal variations and their driving factors of NDVI in Horqin Sandy Land were analyzed based on the dataset of NOAA-NDVI and MODIS-NDVI from 1981 to 2015,as well as meteorological and socio-economic data. The results showed that from 1981 to 2015,NDVI showed a fluctuating increase trend (with a growth rate of 0.00114 a~(-1)). Spatially,areas with increasing NDVI (accounting for 68.8% area) were mainly located in the southeast margin and part of the central region,while NDVI of the northwest margin of the study area was decreasing. The change process of NDVI in desertification areas of different degrees was first decreased (1981-2000) and then increased (2001-2015), indicating that vegetation destroyed in the early stage was restored in the later stage. Results of driving force analysis showed that precipitation and temperature were the factors driving NDVI changes in some areas of Horqin Sandy Land. Population change and the implementation of ecological engineering drove the spatial-temporal change of vegetation in this region. However,economic development was not a major factor driving vegetation change in this area.
中文关键词	科尔沁沙地 ; 时空变化 ; 驱动力
英文关键词	NDVI Horqin Sandy Land NDVI spatial-temporal variation driving force
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6700929
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336380
作者单位	吕家欣, 沈阳农业大学农学院, 沈阳, 辽宁 110866, 中国.; 聂哲, 沈阳农业大学农学院, 沈阳, 辽宁 110866, 中国.; 刘思嫱, 沈阳农业大学农学院, 沈阳, 辽宁 110866, 中国.; 李秀芬, 沈阳农业大学农学院;;中国科学院清原森林生态系统观测研究站, ;;中国科学院清原森林生态系统观测研究站, 沈阳;;沈阳, ;; 110866;;110016.; 郑晓, 沈阳应用生态研究所;;中国科学院清原森林生态系统观测研究站;;中国科学院沈阳应用生态研究所, 中国科学院森林生态与管理重点实验室;;中国科学院清原森林生态系统观测研究站;;中国科学院大青沟沙地生态实验站, 沈阳;;沈阳;;沈阳, ;;;; 110016;;110016;;110016.
推荐引用方式 GB/T 7714	吕家欣,李秀芬,郑晓,等. 近40年科尔沁沙地植被时空变化及其驱动力[J],2020,39(5):1399-1408.
APA	吕家欣,李秀芬,郑晓,聂哲,&刘思嫱.(2020).近40年科尔沁沙地植被时空变化及其驱动力.生态学杂志,39(5),1399-1408.
MLA	吕家欣,et al."近40年科尔沁沙地植被时空变化及其驱动力".生态学杂志 39.5(2020):1399-1408.