Annual and monthly variations in litter macronutrients of three subalpine forests in western China

	Annual and monthly variations in litter macronutrients of three subalpine forests in western China
	Yang, WQ ; Wang, KY ; Kellomaki, S ; Jian, Z
刊名	PEDOSPHERE
	2006
卷号	16 期号:6 页码:788_798
关键词	litterfall macronutrient return monthly variation nutrient concentration subalpine forest
ISSN号	1002-0160
通讯作者	Yang, WQ, Sichuan Agr Univ, Fac Forestry, Yaan 625014, Peoples R China.
中文摘要	Macronutrients (N, P, K, Ca, Mg, and S) in litter of three primarily spruce (Picea purpurea Masters) (SF), fir (Abies faxoniana Rehder & E. H. Wilson) (FF), and birch (Betula platyphylla Sukaczev) (BF) subalpine forests in western China were measured to understand the monthly variations in litter nutrient concentrations and annual and monthly nutrient returns via litterfall. Nutrient concentration in litter showed the rank order of Ca > N > Mg > K > S > P. Monthly variations in nutrient concentrations were greater in leaf litter (LL) than other litter components. The highest and lowest concentrations of N, P, K, and S in LL were found in the growing season and the nongrowing season, respectively, but Ca and Mg were the opposite. Nutrient returns via litterfall showed a marked monthly pattern with a major peak in October and one or two small peaks in February and/or May, varying with the element and stand type, but no marked monthly variations in nutrient returns via woody litter, reproductive litter, except in May for the BF, and moss litter. Not only litter production but also nutrient concentration controlled the annual nutrient return and the monthly nutrient return pattern. The monthly patterns of the nutrient concentration and return were of ecological importance for nutrient cycling and plant growth in the subalpine forest ecosystems.
学科主题	Soil Science
收录类别	SCI
语种	英语
公开日期	2011-07-08
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/21870]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Yang, WQ,Wang, KY,Kellomaki, S,et al. Annual and monthly variations in litter macronutrients of three subalpine forests in western China[J]. PEDOSPHERE,2006,16(6):788_798.
APA	Yang, WQ,Wang, KY,Kellomaki, S,&Jian, Z.(2006).Annual and monthly variations in litter macronutrients of three subalpine forests in western China.PEDOSPHERE,16(6),788_798.
MLA	Yang, WQ,et al."Annual and monthly variations in litter macronutrients of three subalpine forests in western China".PEDOSPHERE 16.6(2006):788_798.