Effects of Nutrient Input on Soil Nitrogen Cycle in Winter in the Alpine Zone

doi:10.1166/jbmb.2018.1748

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	Effects of Nutrient Input on Soil Nitrogen Cycle in Winter in the Alpine Zone
	Hu, Xia 2,3; Sun, Geng 1; Yin, Peng 2; Gong, Mingfu 2
刊名	JOURNAL OF BIOBASED MATERIALS AND BIOENERGY
	2018-02-01
卷号	12 期号:1 页码:129-133
关键词	Litter Input C Input N Input Soil Nitrogen Cycle Qinghai Tibet Plateau
ISSN号	1556-6560
DOI	10.1166/jbmb.2018.1748
产权排序	3
文献子类	Article
英文摘要	Microbial activity is rapidly reduced due to the decrease in temperature, but does not completely cease in the cold season. The snowpack in late winter insulates the soil and further increases soil temperature, allowing microbes to remain active and inducing a shift in the nature of N processing in alpine areas. Microbes need both carbon (C) and nitrogen (N) for their growth and metabolism and the scarcity of either will limit their activity. So soil available N pools and N cycling were closely linked to the C and N of the soil. Many previous studies showed the different results in different regions. Some of the results were considered to be C limited, some considered to be N limited, and also some considered to have little impact. However, which factor limited soil microbes and controlled soil N mineralization was not clear in the alpine belt of the eastern Qinghai Tibet Plateau. In present study, the effects of litter addition in situ and nutrient factors input in laboratory on soil mineral N pools and N mineralization in the eastern Qinghai Tibet Plateau were explored. A significant decrease in soil MBN content, NH4+-N content, increase in soil NO3-N content and net N mineralization, and no change in DON contents were observed with litter input. Direct input of C in laboratory decreased mineral N pools, while mineral N contents increased when N was added. The results suggested that the soil N cycling was influenced by the addition of available C, and the C-limitation occurs in winter in the Eastern Qinghai Tibet Plateau.
学科主题	Materials Science ; Engineering
URL标识	查看原文
WOS关键词	EASTERN TIBETAN PLATEAU ; MICROBIAL BIOMASS ; ORGANIC-MATTER ; FORESTS ; LITTER ; CARBON ; MINERALIZATION ; AVAILABILITY ; RESPIRATION ; TUNDRA
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	AMER SCIENTIFIC PUBLISHERS
WOS记录号	WOS:000428475400019
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30338]
专题	生物多样性与生态系统服务领域_生态研究
作者单位	1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China 2.Leshan Normal Univ, Coll Life Sci, Leshan 614004, Peoples R China; 3.Leshan Normal Univ, Bamboo Dis & Pests Control & Resources Dev Key La, Leshan 614004, Peoples R China;
推荐引用方式 GB/T 7714	Hu, Xia,Sun, Geng,Yin, Peng,et al. Effects of Nutrient Input on Soil Nitrogen Cycle in Winter in the Alpine Zone[J]. JOURNAL OF BIOBASED MATERIALS AND BIOENERGY,2018,12(1):129-133.
APA	Hu, Xia,Sun, Geng,Yin, Peng,&Gong, Mingfu.(2018).Effects of Nutrient Input on Soil Nitrogen Cycle in Winter in the Alpine Zone.JOURNAL OF BIOBASED MATERIALS AND BIOENERGY,12(1),129-133.
MLA	Hu, Xia,et al."Effects of Nutrient Input on Soil Nitrogen Cycle in Winter in the Alpine Zone".JOURNAL OF BIOBASED MATERIALS AND BIOENERGY 12.1(2018):129-133.