Litter production, leaf litter decomposition and nutrient return in Cunninghamia lanceolata plantations in south China: effect of planting conifers with broadleaved species

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	Litter production, leaf litter decomposition and nutrient return in Cunninghamia lanceolata plantations in south China: effect of planting conifers with broadleaved species
	Wang, QK; Wang, SL; Fan, B; Yu, XJ; Wang, QK, Chinese Acad Sci, Inst Appl Ecol, Ctr Forest Ecol & Ecoengn, Shenyang 110016, Peoples R China
刊名	PLANT AND SOIL
	2007
卷号	297 期号:1-2 页码:201-211
关键词	Mixed Plantation Monospecific Coniferous Plantation Litterfall Mixed-species Litter Litterbag Study
ISSN号	0032-079X
英文摘要	This study compared litter production, litter decomposition and nutrient return in pure and mixed species plantations. Dry weight and N, P, K, Ca, Mg quantities in the litterfall were measured in one pure Cunninghamia lanceolata plantation (PC) and two mixed-species plantations of C. lanceolata with Alnus cremastogyne (MCA) and Kalopanax septemlobus (MCK) in subtropical China. Covering 6 years of observations, mean annual litter production of MCA (4.97 Mg center dot ha(-1)) and MCK (3.97 Mg center dot ha(-1)) was significantly higher than that of PC (3.46 Mg center dot ha(-1)). Broadleaved trees contributed 42% of the total litter production in MCA and 31% in MCK. Introduction of broadleaved tree species had no significant effect on litterfall pattern. Total litterfall was greatest in the dry season from November to March. Nutrient returns to the forest floor through leaf litter were significantly higher in both MCA and MCK than in PC (P < 0.05). The amounts of N, K, and Mg returned to the forest floor through leaf litter were highest in the MCA, and P and Ca returns were highest in the MCK. Percent contribution of broadleaf litter to total nutrient returns ranged from 41.7% to 86.9% in MCA and from 49.3% to 74.8% in MCK. The decomposition rate of individual leaf litter increased in the order: C. lanceolata < K. septemlobus < A. cremastogyne. Litter mixing had a positive effect on decomposition rate of the more recalcitrant litter and promoted nutrient return. Relative to mass loss of A. cremastogyne decomposing alone, higher mass loss of the mixture of C. lanceolata and A. cremastogyne was observed after 330 days of decomposition. These results indicate that mixed plantations of different tree species have advantages over monospecific plantations with regards to nutrient fluxes and these advantages have relevance to restoration of degraded sites.
学科主题	Agronomy ; Plant Sciences ; Soil Science
语种	英语
WOS记录号	WOS:000248856600017
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54651]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Wang, QK, Chinese Acad Sci, Inst Appl Ecol, Ctr Forest Ecol & Ecoengn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, QK,Wang, SL,Fan, B,et al. Litter production, leaf litter decomposition and nutrient return in Cunninghamia lanceolata plantations in south China: effect of planting conifers with broadleaved species[J]. PLANT AND SOIL,2007,297(1-2):201-211.
APA	Wang, QK,Wang, SL,Fan, B,Yu, XJ,&Wang, QK, Chinese Acad Sci, Inst Appl Ecol, Ctr Forest Ecol & Ecoengn, Shenyang 110016, Peoples R China.(2007).Litter production, leaf litter decomposition and nutrient return in Cunninghamia lanceolata plantations in south China: effect of planting conifers with broadleaved species.PLANT AND SOIL,297(1-2),201-211.
MLA	Wang, QK,et al."Litter production, leaf litter decomposition and nutrient return in Cunninghamia lanceolata plantations in south China: effect of planting conifers with broadleaved species".PLANT AND SOIL 297.1-2(2007):201-211.