Initial soil responses to experimental warming in two contrasting forest ecosystems,Eastern Tibetan Plateau,China: Nutrient availabilities,microbial properties and enzyme activities

doi:10.1016/j.apsoil.2010.07.005

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	Initial soil responses to experimental warming in two contrasting forest ecosystems,Eastern Tibetan Plateau,China: Nutrient availabilities,microbial properties and enzyme activities
	Xu, Zhen-feng 1,2; Hu, Rong 1; Xiong, Pei 1; Wan, Chuan 1; Cao, Gang 1; Liu, Qing 1
刊名	APPLIED SOIL ECOLOGY
	2010-10
卷号	46 期号:2 页码:291-299
关键词	Experimental warming Microbial biomass Dissolved organic matter Soil enzyme Extractable nitrogen Eastern Tibetan Plateau Coniferous forest
ISSN号	0929-1393
DOI	10.1016/j.apsoil.2010.07.005
产权排序	1
文献子类	Article
英文摘要	In order to understand the effects of projected global warming on soils in different land-use types, we compared the impacts of warming on soils in two contrasting forest ecosystems (a dragon spruce plantation and a natural forest) using the open-top chamber (OTC) method in the Eastern Tibetan Plateau of China. The OTC on average enhanced daily mean soil temperatures by 0.61 degrees C (plantation) and by 0.55 degrees C (natural forest) throughout the growing season, respectively. Conversely, soil volumetric moisture declined by 4.10% in the plantation and by 2.55% in the natural forest, respectively. Warming did not affect dissolved organic C (DOC) and N (DON) in the plantation but significantly increased them in the natural forest. Elevated temperature significantly increased net N mineralization rates and extractable inorganic N pools in both sites. Warming had no effects on microbial biomass C (MBC) and N (MBN) and their ratios (MBC/MBN) in the plantation and significantly increased MBC and MBN only late in the growing season in the natural forest. Warming did not affect basal respiration in the plantation but significantly increased it in the natural forest. No clear change was observed in metabolic quotient between warming regimes for both forest types. Experimental warming tended to increase invertase and urease in both forest soils. Measured pools related to N turnover generally showed significant interactions in warming, forest type and sampling date. Taken together, our results indicate that responses of soils to experimental warming depend strongly on forest managements and seasons. (C) 2010 Elsevier B.V. All rights reserved.
学科主题	Agriculture/agronomy
URL标识	查看原文
WOS关键词	DISSOLVED ORGANIC-CARBON ; MEDITERRANEAN SHRUBLAND ; PLANT-GROWTH ; ANNUAL GRASSLAND ; TEMPERATURE ; FERTILIZATION ; RESPIRATION ; PHOSPHATASE ; DYNAMICS ; DROUGHT
WOS研究方向	Agriculture
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000283977500017
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/29930]
专题	生物多样性与生态系统服务领域_生态研究
通讯作者	Liu, Qing
作者单位	1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China; 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zhen-feng,Hu, Rong,Xiong, Pei,et al. Initial soil responses to experimental warming in two contrasting forest ecosystems,Eastern Tibetan Plateau,China: Nutrient availabilities,microbial properties and enzyme activities[J]. APPLIED SOIL ECOLOGY,2010,46(2):291-299.
APA	Xu, Zhen-feng,Hu, Rong,Xiong, Pei,Wan, Chuan,Cao, Gang,&Liu, Qing.(2010).Initial soil responses to experimental warming in two contrasting forest ecosystems,Eastern Tibetan Plateau,China: Nutrient availabilities,microbial properties and enzyme activities.APPLIED SOIL ECOLOGY,46(2),291-299.
MLA	Xu, Zhen-feng,et al."Initial soil responses to experimental warming in two contrasting forest ecosystems,Eastern Tibetan Plateau,China: Nutrient availabilities,microbial properties and enzyme activities".APPLIED SOIL ECOLOGY 46.2(2010):291-299.