Effects of nitrogen and phosphorus additions on soil microbial biomass and community structure in two reforested tropical forests

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Effects of nitrogen and phosphorus additions on soil microbial biomass and community structure in two reforested tropical forests
	Liu, Lei; Gundersen, Per; Zhang, Wei; Zhang, Tao; Chen, Hao; Mo, Jiangming
刊名	SCIENTIFIC REPORTS
	2015-09-23
卷号	5 页码:-
英文摘要	Elevated nitrogen (N) deposition may aggravate phosphorus (P) deficiency in forests in the warm humid regions of China. To our knowledge, the interactive effects of long-term N deposition and P availability on soil microorganisms in tropical replanted forests remain unclear. We conducted an N and P manipulation experiment with four treatments: control, N addition (15 g N m(-2).yr(-1)), P addition (15 g P m(-2).yr(-1)), and N and P addition (15 + 15 g N and P m(-2).yr(-1), respectively) in disturbed (planted pine forest with recent harvests of understory vegetation and litter) and rehabilitated (planted with pine, but mixed with broadleaf returning by natural succession) forests in southern China. Nitrogen addition did not significantly affect soil microbial biomass, but significantly decreased the abundance of gram-negative bacteria PLFAs in both forest types. Microbial biomass increased significantly after P addition in the disturbed forest but not in the rehabilitated forest. No interactions between N and P additions on soil microorganisms were observed in either forest type. Our results suggest that microbial growth in replanted forests of southern China may be limited by P rather than by N, and this P limitation may be greater in disturbed forests.
研究领域[WOS]	Multidisciplinary Sciences
WOS记录号	WOS:000361597800001
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32301]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Liu, Lei,Gundersen, Per,Zhang, Wei,et al. Effects of nitrogen and phosphorus additions on soil microbial biomass and community structure in two reforested tropical forests[J]. SCIENTIFIC REPORTS,2015,5:-.
APA	Liu, Lei,Gundersen, Per,Zhang, Wei,Zhang, Tao,Chen, Hao,&Mo, Jiangming.(2015).Effects of nitrogen and phosphorus additions on soil microbial biomass and community structure in two reforested tropical forests.SCIENTIFIC REPORTS,5,-.
MLA	Liu, Lei,et al."Effects of nitrogen and phosphorus additions on soil microbial biomass and community structure in two reforested tropical forests".SCIENTIFIC REPORTS 5(2015):-.