Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau

doi:10.1016/j.catena.2017.04.016

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	Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau
	Pu, Qiong 1; Wei, XR (reprint author), Xinong Rd 26, Yangling 712100, Shaanxi Provinc, Peoples R China.; Zhang, Xingchang 2; Hao, Mingde 2; Wei, Xiaorong 2; Wang, Xiang 3; Ma, Tiane 2; Huang, Linqi 2
刊名	CATENA
	2017
卷号	156 页码:298-304
关键词	Aggregates Forest Types Mineralization Nitrogen Addition Tibetan Plateau
ISSN号	0341-8162
DOI	10.1016/j.catena.2017.04.016
文献子类	Article
英文摘要	The forests of the Tibetan Plateau store large amounts of soil organic carbon (OC) but are among the most vulnerable and sensitive ecosystems to environmental change. The lack of knowledge regarding the distribution and turnover of OC and nitrogen (N) in Tibetan Plateau forest soils limits the ability to predict how this ecosystem will respond to climate change. In this study, we collected mineral soils from coniferous and broadleaf forests on the southern Tibetan Plateau and measured' OC and N contents in both bulk soils and water-stable aggregates. We also determined the mineralization of OC and N in bulk soils and examined the effects of N addition on OC mineralization. Our objectives were to investigate the distribution and mineralization of soil OC and N in various forest types and to determine the stability of OC following N addition. Our results showed that OC and N in macroaggregates contributed 76% of the OC and N in bulk soils. Forest type did not affect the OC or N contents of either bulk soils or aggregates. Similarly, OC and N mineralization and their relationships with soil OC or N contents were similar between broadleaf and coniferous forests, indicating that soil OC and N distribution and turnover were insensitive to forest type. Nitrogen mineralization was dominated by ammonification in these forest soils. Nitrogen addition did not affect OC mineralization or its relationship with soil OC or N contents. These results indicate that the OC contents of forest soils of the southern Tibetan Plateau are relatively insensitive to N addition.
学科主题	Geology ; Agriculture ; Water Resources
URL标识	查看原文
出版地	AMSTERDAM
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000404305700030
资助机构	National Natural Science Foundation of China [41622105, 41571296]; Program for New Century Excellent Talents in University [NCET-13-0487]; Northwest A F University [2014YQ007]; Special Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-Q5] ; National Natural Science Foundation of China [41622105, 41571296]; Program for New Century Excellent Talents in University [NCET-13-0487]; Northwest A F University [2014YQ007]; Special Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-Q5] ; National Natural Science Foundation of China [41622105, 41571296]; Program for New Century Excellent Talents in University [NCET-13-0487]; Northwest A F University [2014YQ007]; Special Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-Q5] ; National Natural Science Foundation of China [41622105, 41571296]; Program for New Century Excellent Talents in University [NCET-13-0487]; Northwest A F University [2014YQ007]; Special Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-Q5]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7938]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Wei, XR (reprint author), Xinong Rd 26, Yangling 712100, Shaanxi Provinc, Peoples R China.
作者单位	1.Tibetan Autonomous Reg Agr Technol Extens & Serv, Tibetan Lhasa 850000, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 3.Univ Minnesota, Dept Soil Water & Climate, St Paul, MN 55108 USA
推荐引用方式 GB/T 7714	Pu, Qiong,Wei, XR ,Zhang, Xingchang,et al. Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau[J]. CATENA,2017,156:298-304.
APA	Pu, Qiong.,Wei, XR .,Zhang, Xingchang.,Hao, Mingde.,Wei, Xiaorong.,...&Huang, Linqi.(2017).Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau.CATENA,156,298-304.
MLA	Pu, Qiong,et al."Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau".CATENA 156(2017):298-304.