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Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau
Wei, Xiaorong1; Wang, Xiang2; Ma, Tiane1; Huang, Linqi1; Pu, Qiong3; Hao, Mingde1; Zhang, Xingchang1; Wei, XR (reprint author), Xinong Rd 26, Yangling 712100, Shaanxi Provinc, Peoples R China.
SubtypeArticle
2017
Source PublicationCATENA
ISSN0341-8162
description.correspondentemailxrwei78@163.com
Volume156Pages:298-304
AbstractThe 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.
KeywordAggregates Forest Types Mineralization Nitrogen Addition Tibetan Plateau
Subject AreaGeology ; Agriculture ; Water Resources
DOI10.1016/j.catena.2017.04.016
URL查看原文
Indexed BySCI
Publication PlaceAMSTERDAM
Language英语
WOS IDWOS:000404305700030
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational 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]
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/7938
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorWei, XR (reprint author), Xinong Rd 26, Yangling 712100, Shaanxi Provinc, Peoples R China.
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
2.Univ Minnesota, Dept Soil Water & Climate, St Paul, MN 55108 USA
3.Tibetan Autonomous Reg Agr Technol Extens & Serv, Tibetan Lhasa 850000, Peoples R China
Recommended Citation
GB/T 7714
Wei, Xiaorong,Wang, Xiang,Ma, Tiane,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 Wei, Xiaorong.,Wang, Xiang.,Ma, Tiane.,Huang, Linqi.,Pu, Qiong.,...&Wei, XR .(2017).Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau.CATENA,156,298-304.
MLA Wei, Xiaorong,et al."Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau".CATENA 156(2017):298-304.
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