Responses of soil chemical and biological properties to nitrogen addition in a Dahurian larch plantation in Northeast China
文献类型：期刊论文
| 作者 | Hu, Ya-Lin1; Zeng, De-Hui1; Liu, Yun-Xia1; Zhang, Yu-Lan1; Chen, Zhen-Hua1; Wang, Zheng-Quan2 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 333期号:1-2页码:81-92 |
| 关键词 | Enzymatic Activity Larix Gmelinii Rupr. Microbial Biomass Microbial Metabolic Quotient Nitrogen Enrichment Temperate Plantation Forest |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-010-0321-6 |
| 英文摘要 | Soil microbial properties play a key role in belowground ecosystem functioning, but are not well understood in forest ecosystems under nitrogen (N) enrichment. In this study, soil samples from 0-10 cm and 10-20 cm layers were collected from a Dahurian larch (Larix gmelinii Rupr.) plantation in Northeast China after six consecutive years of N addition to examine changes in soil pH, nutrient concentrations, and microbial biomass and activities. Nitrogen addition significantly decreased soil pH and total phosphorus, but had little effect on soil total organic carbon (TOC) and total N (TN) concentrations. The NO (3) (-) -N concentrations in the two soil layers under N addition were significantly higher than that in the control, while NH (4) (+) -N concentrations were not different. After six years of N addition, potential net N mineralization and nitrification rates were dramatically increased. Nitrogen addition decreased microbial biomass C (MBC) and N (MBN), and MBC/TOC and MBN/TN in the 0-10 cm soil layer, but MBC/MBN was increased by 67% in the 0-10 cm soil layer. Soil basal respiration, microbial metabolic quotient (qCO(2)), and beta-glucosidase, urease, acid phosphomonoesterase and nitrate reductase activities in the two soil layers showed little change after six years of N addition. However, soil protease and dehydrogenase activities in the 0-10 cm layer were 41% and 54% lower in the N addition treatment than in the control, respectively. Collectively, our results suggest that in the mid-term N addition leads to a decline in soil quality in larch plantations, and that different soil enzymes show differentiated responses to N addition. |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000280089400008 |
| 出版者 | SPRINGER |
| 源URL | [http://210.72.129.5/handle/321005/121571]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zeng, De-Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.NE Forestry Univ, Sch Forestry, Harbin 150040, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Ya-Lin,Zeng, De-Hui,Liu, Yun-Xia,et al. Responses of soil chemical and biological properties to nitrogen addition in a Dahurian larch plantation in Northeast China[J]. PLANT AND SOIL,2010,333(1-2):81-92. |
| APA | Hu, Ya-Lin,Zeng, De-Hui,Liu, Yun-Xia,Zhang, Yu-Lan,Chen, Zhen-Hua,&Wang, Zheng-Quan.(2010).Responses of soil chemical and biological properties to nitrogen addition in a Dahurian larch plantation in Northeast China.PLANT AND SOIL,333(1-2),81-92. |
| MLA | Hu, Ya-Lin,et al."Responses of soil chemical and biological properties to nitrogen addition in a Dahurian larch plantation in Northeast China".PLANT AND SOIL 333.1-2(2010):81-92. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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