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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