干旱区生态环境知识资源中心(Arid): Establishment of mixed plantations of Pinus sylvestris var.mongolica and Populus*xiaozhuanica may not be appropriate:evidence from litter decomposition

Arid

	*Establishment of mixed plantations of Pinus sylvestris var.mongolica and Populusxiaozhuanica may not be appropriate:evidence from litter decomposition**
	Song Huanhuan; Yan Tao; Zeng Dehui
来源期刊	Journal of Plant Ecology
ISSN	1752-9921
出版年	2019
卷号	12 期号:5 页码:857-870
英文摘要	Aims Mongolian pine (Pinus sylvestris var.mongolica) and Xiaozhuan poplar (Populus*xiaozhuanica) are two predominant afforestation tree species in the semi-arid sandy lands of northeast China,which are characterized by poor soil nutrients.Plant litter decomposition plays a critical role in regulating nutrient cycling in terrestrial ecosystems.Admixture of broadleaf litter to conifer litter is expected to improve litter decomposition and soil fertility,and thus productivity.However,the effects on the decomposition of litter mixture of the above two tree species are not well understood.Therefore,it is essential to assess the decomposition performance of litter mixture with the aim of improving forest nutrient management and the establishment of mixed plantation.Appropriate forest management practice is critical for the sustainability of site productivity in plantation forests.Methods We conducted a field litterbag decomposition transplant experiment for single pine litter,single poplar litter and their mixture in a pine stand,a poplar stand and an adjacent grassland for 16 months in the Keerqin Sandy Lands,northeast China.Important Findings After 16 months of incubation,there remained significantly more litter mass of pine (73.8%) than of poplar (67.2%).The mass remaining was positively correlated with litter carbon (C):nitrogen (N),C:phosphorus (P) and lignin:N ratios,and negatively with litter N and P concentrations,which suggests that initial litter chemical properties were an important factor affecting litter decay.Generally,net N and P immobilizations were observed during decomposition.This indicates that litter decomposition in this area was N-limited as N was progressively immobilized,and then tended to induce P limitation.Thus,we strongly recommend prohibiting litter harvesting by local residents to maintain soil fertility in this nutrient-poor area.Our results do not support the home-field advantage hypothesis,as illustrated by the fact that,in most cases,mass loss of litter from native habitat was comparable to that in transplanted habitats during decomposition.Furthermore,a dominant additive effect was detected,indicating that the establishment of mixed plantation may not be appropriate for these two species.
英文关键词	litter mass remaining nutrient immobilization litter mixture additive effect home-field advantage nutrient-poor area
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6585139
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336184
作者单位	Song Huanhuan, Institute of Applied Ecology,Chinese Academy of Sciences;;Daqinggou Ecological Station,Institute of Applied Ecology,Chinese Academy of Sciences;;University of Chinese Academy of Sciences, CAS Key Laboratory of Forest Ecology and Management;;;;, Shenyang;;Shenyang;;, ;;;;Beijing 110016;;110016;;100049.; Yan Tao, Sino-French Institute for Earth System Science,College of Urban and Environmental Sciences,Peking University, Beijing 100871, China.; Zeng Dehui, Institute of Applied Ecology,Chinese Academy of Sciences;;Daqinggou Ecological Station,Institute of Applied Ecology,Chinese Academy of Sciences, CAS Key Laboratory of Forest Ecology and Management;;, Shenyang;;Shenyang, ;; 110016;;110016.
推荐引用方式 GB/T 7714	Song Huanhuan,Yan Tao,Zeng Dehui. Establishment of mixed plantations of Pinus sylvestris var.mongolica and Populus*xiaozhuanica may not be appropriate:evidence from litter decomposition[J],2019,12(5):857-870.
APA	Song Huanhuan,Yan Tao,&Zeng Dehui.(2019).Establishment of mixed plantations of Pinus sylvestris var.mongolica and Populus*xiaozhuanica may not be appropriate:evidence from litter decomposition.Journal of Plant Ecology,12(5),857-870.
MLA	Song Huanhuan,et al."Establishment of mixed plantations of Pinus sylvestris var.mongolica and Populus*xiaozhuanica may not be appropriate:evidence from litter decomposition".Journal of Plant Ecology 12.5(2019):857-870.