干旱区生态环境知识资源中心(Arid): Growing season relative humidity variations and possible impacts on Hulunbuir grassland

Arid

	Growing season relative humidity variations and possible impacts on Hulunbuir grassland
	Bo Sun; Yu Liu; Ying Lei
来源期刊	Science Bulletin
ISSN	2095-9273
出版年	2016
卷号	61 期号:9 页码:728-736
英文摘要	A relative humidity series of April-August during 1825-2009 AD was reconstructed based on treering width of Pinus sylvestris var. mongolica for the Hulunbuir area. During the past 185 years, 25 humid years and 26 arid years were identified in the reconstruction, as well as 6 wet periods and 6 dry periods. The relative humidity has decreased since approximately the 1950s, suggesting a warm and dry climate trend in the study area. The reconstruction can be compared with those of the surrounding tree ring reconstructed precipitation and relative humidity series at the decadal scale, reflecting the consistency of the regional climate variations. Besides, significant positive correlations are revealed between the reconstruction and the normalized difference vegetation index of the Hulunbuir grassland. And the decrease in relative humidity will cause negative impacts on the Hulunbuir grassland. Comparisons between the sandstorm records and the relative humidity of the study area indicate that strong sandstorms occurred more frequently in Hulunbuir when the relative humidity was low. Therefore, under the downward trend in relative humidity, more effort should be made to protect the grassland ecology and treat the bare sand land for the local and surrounding areas.
英文关键词	Tree ring Relative humidity Reconstruction Hulunbuir Grassland degradation
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:5701176
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335646
作者单位	Bo Sun, School of Resources, Environment and Historical Culture, Xianyang Normal University, State Key Laboratory of Loess and Quaternary Geology, Xianyang, Shaanxi 712000, China.; Yu Liu, Institute of Earth Environment, Chinese Academy of Sciences, State Key Laboratory of Loess and Quaternary Geology, Xian, 710061.; Ying Lei, Institute of Earth Environment, Chinese Academy of Sciences, State Key Laboratory of Loess and Quaternary Geology, Xian, 710061.
推荐引用方式 GB/T 7714	Bo Sun,Yu Liu,Ying Lei. Growing season relative humidity variations and possible impacts on Hulunbuir grassland[J],2016,61(9):728-736.
APA	Bo Sun,Yu Liu,&Ying Lei.(2016).Growing season relative humidity variations and possible impacts on Hulunbuir grassland.Science Bulletin,61(9),728-736.
MLA	Bo Sun,et al."Growing season relative humidity variations and possible impacts on Hulunbuir grassland".Science Bulletin 61.9(2016):728-736.