干旱区生态环境知识资源中心(Arid): 甘肃祁连山自然保护区草地时空变化及其对气候的响应

Arid

	甘肃祁连山自然保护区草地时空变化及其对气候的响应
其他题名	Temporal and spatial changes in response to climate in grasslands of the Qilian Mountain National Nature Reserve
	宋伟宏 1; 王莉娜 1; 张金龙 2
来源期刊	草业科学
ISSN	1001-0629
出版年	2019
卷号	36 期号:9 页码:2233-2249
中文摘要	及时掌握祁连山草地植被生长状况、演变趋势及其与气候的关系,对区域复合生态系统功能的科学评估具有参考价值。本研究采用MOD13Q1与Landsat数据,运用趋势分析法、相关性分析法等,分析了甘肃祁连山自然保护区2000-2018年的土地利用变化与不同草原类型的NDVI时空变化及其对气候的响应。结果表明:1) 2000-2015年草地面积减少,主要转出为林地、耕地和水域;2) 2000-2018年祁连山自然保护区夏季草地植被NDVI的改善状况最佳,其他季节均以轻微改善为主;3)不同草原植被NDVI均呈现增加的趋势,以荒漠草原的增加速率最大,其次是典型草原与高寒草原和高寒草原;4)祁连山自然保护区降水量变化对不同草原植被NDVI的影响高于气温。
英文摘要	Understanding the growth and evolution of grasslands in the Qilian Mountains, China, and their relationship with climate is necessary for scientific evaluation of this complex regional ecosystem. In this study, MOD13Q1 and Landsat data and the normalized difference vegetation index (NDVI) were used to examine spatial and temporal changes in different grassland types in response to climate in the Qilian Mountain National Nature Reserve from 2000 to 2018. We found that 1) the grassland area decreased from 2000 to 2015, and the area mainly transitioned to forest land, farmland, or waterbodies; 2) the NDVI of summer grassland vegetation in the Qilian Mountain National Nature Reserve improved significantly from 2000 to 2018, and slight improvements were seen in other seasons; 3) the NDVI of different grassland vegetation types showed increasing trends, with the highest increase in desert grassland, followed by typical grassland and alpine grassland; 4) the effect of precipitation on the NDVI of different grassland vegetation types was higher than that of temperature.
中文关键词	祁连山 ; 土地利用 ; 草地 ; 遥感 ; NDVI时空变化 ; 气候 ; 响应
英文关键词	Qilian mountains land use grassland remote sensing NDVI spatial and temporal variation climate response
语种	中文
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6587059
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/316028
作者单位	1.甘肃省环境监测中心站, 兰州, 甘肃 730020, 中国; 2.中国科学院西北生态环境资源研究院, 甘肃省遥感重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	宋伟宏,王莉娜,张金龙. 甘肃祁连山自然保护区草地时空变化及其对气候的响应[J]. 中国科学院西北生态环境资源研究院,2019,36(9):2233-2249.
APA	宋伟宏,王莉娜,&张金龙.(2019).甘肃祁连山自然保护区草地时空变化及其对气候的响应.草业科学,36(9),2233-2249.
MLA	宋伟宏,et al."甘肃祁连山自然保护区草地时空变化及其对气候的响应".草业科学 36.9(2019):2233-2249.