干旱区生态环境知识资源中心(Arid): Effects of climate change on phenology and primary productivity in the desert steppe of Inner Mongolia

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	Effects of climate change on phenology and primary productivity in the desert steppe of Inner Mongolia
	Han Fang; Zhang Qing; Buyantuev Alexander; Niu Jianming; Liu Pengtao; Li Xinghua; Kang Sarula; Zhang Jing; Chang Changming; Li Yunpeng
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2015
卷号	7 期号:2 页码:251-263
英文摘要	Variations in temperature and precipitation affect local ecosystems. Considerable spatial and temporal heterogeneity exists in arid ecosystems such as desert steppes. In this study, we analyzed the spatiotemporal dynamics of climate and vegetation phenology in the desert steppe of Inner Mongolia, China using meteorological data (1961-2010) from 11 stations and phenology data (2004-2012) from 6 ecological observation stations. We also estimated the gross primary production for the period of 1982-2009 and found that the annual mean temperature increased at a rate of 0.47°C/decade during 1961-2010, with the last 10 years being consistently warmer than the 50 years as an average. The most significant warming occurred in winters. Annual precipitation slightly decreased during the 50-year period, with summer precipitation experiencing the highest drop in the last 10 years, and spring precipitation, a rise. Spatially, annual precipitation increased significantly in the northeastern and eastern central areas next to the typical steppe. From 2004 to 2012, vegetation green-up and senescence date advanced in the study area, shortening the growing season. Consequently, the primary productivity of the desert steppe decreased along the precipitation gradient from southeast to northwest. Temporally, productivity increased during the period of 1982-1999 and significantly decreased after 2000. Overall, the last decade witnessed the most dramatic climatic changes that were likely to negatively affect the desert steppe ecosystem. The decreased primary productivity, in particular, decreases ecosystem resilience and impairs the livelihood of local farmers and herdsmen.
英文关键词	desert steppe green-up gross primary productivity phenology precipitation temperature
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	History
CSCD记录号	CSCD:5347510
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335444
作者单位	Han Fang, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Zhang Qing, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Niu Jianming, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Liu Pengtao, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Li Xinghua, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Kang Sarula, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Zhang Jing, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Chang Changming, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Buyantuev Alexander, Department of Geography and Planning, the State University of New York, NY, 12222, USA.; Li Yunpeng, Meteorological Bureau of Inner Mongolia, Hohhot, Inner Mongolia 010...
推荐引用方式 GB/T 7714	Han Fang,Zhang Qing,Buyantuev Alexander,et al. Effects of climate change on phenology and primary productivity in the desert steppe of Inner Mongolia[J],2015,7(2):251-263.
APA	Han Fang.,Zhang Qing.,Buyantuev Alexander.,Niu Jianming.,Liu Pengtao.,...&Li Yunpeng.(2015).Effects of climate change on phenology and primary productivity in the desert steppe of Inner Mongolia.Journal of Arid Land,7(2),251-263.
MLA	Han Fang,et al."Effects of climate change on phenology and primary productivity in the desert steppe of Inner Mongolia".Journal of Arid Land 7.2(2015):251-263.