中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Seasonal variation in soil nitrogen availability under Mongolian pine plantations at the Keerqin Sand Lands, China

文献类型:期刊论文

作者Zeng, DH, Chinese Acad Sci, Inst Appl Ecol, Daqinggou Ecol Stn, Shenyang 110016, Peoples R China; Chen, FS; Zeng, DH; Zhou, B; Singh, AN; Fan, ZP
刊名JOURNAL OF ARID ENVIRONMENTS
出版日期2006
卷号67期号:2页码:226-239
关键词Afforestation Microbial Biomass n n Mineralization Nitrification Pinus Sylvestris Var. Mongolica Zhanggutai
ISSN号0140-1963
英文摘要The objectives of our research were to describe the seasonal patterns in soil inorganic N and microbial biomass N and to assess the rates of net N mineralization and net nitrification in 29-year-old Mongolian pine (Pinus sylvestris var. mongolica) stands in the south-eastern area of Keerqin Sand Lands, China. The concentrations of soil ammonium-N (NH4+-N), nitrate-N (NO3--N), and inorganic N as well as the rates of net N mineralization and net nitrification clearly showed seasonal patterns of a bell shape from April to October. However, the seasonal patterns were less obvious for microbial biomass N. Higher NO3--N concentrations were found in the unfenced, grazed stand and higher NH4+-N concentrations were found in the fenced, ungrazed stand. The rate of cumulative net N mineralization was 55.4 kg ha(-1) year(-1) in the fenced stand and 33.0 kg ha(-1) year(-1) in the unfenced stand. Of the annual net N mineralization in the fenced stand, only 33.2% was nitrified to NO3--N, whereas in the unfenced stand, 62.2% was nitrified. Apparently, N availability components in Mongolian pine stands were significantly affected by the two different management options. Our results suggest that a deficiency in N availability to these Mongolian pine plantations happens in the early part of the annual growing season. (c) 2006 Published by Elsevier Ltd.
学科主题Ecology ; Environmental Sciences
语种英语
WOS记录号WOS:000240938200004
公开日期2011-09-23
源URL[http://210.72.129.5/handle/321005/54853]  
专题沈阳应用生态研究所_沈阳应用生态研究所
通讯作者Zeng, DH, Chinese Acad Sci, Inst Appl Ecol, Daqinggou Ecol Stn, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714
Zeng, DH, Chinese Acad Sci, Inst Appl Ecol, Daqinggou Ecol Stn, Shenyang 110016, Peoples R China,Chen, FS,Zeng, DH,et al. Seasonal variation in soil nitrogen availability under Mongolian pine plantations at the Keerqin Sand Lands, China[J]. JOURNAL OF ARID ENVIRONMENTS,2006,67(2):226-239.
APA Zeng, DH, Chinese Acad Sci, Inst Appl Ecol, Daqinggou Ecol Stn, Shenyang 110016, Peoples R China,Chen, FS,Zeng, DH,Zhou, B,Singh, AN,&Fan, ZP.(2006).Seasonal variation in soil nitrogen availability under Mongolian pine plantations at the Keerqin Sand Lands, China.JOURNAL OF ARID ENVIRONMENTS,67(2),226-239.
MLA Zeng, DH, Chinese Acad Sci, Inst Appl Ecol, Daqinggou Ecol Stn, Shenyang 110016, Peoples R China,et al."Seasonal variation in soil nitrogen availability under Mongolian pine plantations at the Keerqin Sand Lands, China".JOURNAL OF ARID ENVIRONMENTS 67.2(2006):226-239.

入库方式: OAI收割

来源:沈阳应用生态研究所

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