中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
DOI10.1007/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

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。