Ecosystem responses to warming and watering in typical and desert steppes

doi:10.1038/srep34801

	Ecosystem responses to warming and watering in typical and desert steppes
	Xu, Zhenzhu; Hou, Yanhui ; Zhang, Lihua ; Liu, Tao 1; Zhou, Guangsheng 1
	2016
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	6
摘要	Global warming is projected to continue, leading to intense fluctuations in precipitation and heat waves and thereby affecting the productivity and the relevant biological processes of grassland ecosystems. Here, we determined the functional responses to warming and altered precipitation in both typical and desert steppes. The results showed that watering markedly increased the aboveground net primary productivity (ANPP) in a typical steppe during a drier year and in a desert steppe over two years, whereas warming manipulation had no significant effect. The soil microbial biomass carbon (MBC) and the soil respiration (SR) were increased by watering in both steppes, but the SR was significantly decreased by warming in the desert steppe only. The inorganic nitrogen components varied irregularly, with generally lower levels in the desert steppe. The belowground traits of soil total organic carbon (TOC) and the MBC were more closely associated with the ANPP in the desert than in the typical steppes. The results showed that the desert steppe with lower productivity may respond strongly to precipitation changes, particularly with warming, highlighting the positive effect of adding water with warming. Our study implies that the habitat- and year-specific responses to warming and watering should be considered when predicting an ecosystem's functional responses under climate change scenarios.
学科领域	Multidisciplinary Sciences
DOI	10.1038/srep34801
收录类别	SCI
语种	英语
WOS关键词	CONTRASTING SOIL SURFACES ; SIMULATED CLIMATE-CHANGE ; NET PRIMARY PRODUCTION ; MICROBIAL BIOMASS ; CARBON FLUXES ; GRASSLAND ECOSYSTEMS ; PRECIPITATION PULSE ; PLANT-GROWTH ; TEMPERATURE SENSITIVITY ; INTERANNUAL VARIATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000385140800001
出版者	NATURE PORTFOLIO
文献子类	Article
出版地	BERLIN
资助机构	China Special Fund for Meteorological Research in the Public Interest (Major projects) [GYHY201506001-3] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31170456]
作者邮箱	xuzz@ibcas.ac.cn ; gszhou@ibcas.ac.cn
作品OA属性	gold, Green Published
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25139
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zhenzhu,Hou, Yanhui,Zhang, Lihua,et al. Ecosystem responses to warming and watering in typical and desert steppes[J]. SCIENTIFIC REPORTS,2016,6.
APA	Xu, Zhenzhu,Hou, Yanhui,Zhang, Lihua,Liu, Tao,&Zhou, Guangsheng.(2016).Ecosystem responses to warming and watering in typical and desert steppes.SCIENTIFIC REPORTS,6.
MLA	Xu, Zhenzhu,et al."Ecosystem responses to warming and watering in typical and desert steppes".SCIENTIFIC REPORTS 6(2016).

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