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 x xiaozhuanica may not be appropriate: evidence from litter decomposition

Arid

DOI	10.1093/jpe/rtz020
	Establishment of mixed plantations of Pinus sylvestris var. mongolica and Populus x xiaozhuanica may not be appropriate: evidence from litter decomposition
	Song, Huan-Huan 1,2,3; Yan, Tao 4; Zeng, De-Hui 1,2
通讯作者	Zeng, De-Hui
来源期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
EISSN	1752-993X
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 x 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
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000491991000007
WOS关键词	HOME-FIELD ADVANTAGE ; LEAF-LITTER ; CUNNINGHAMIA-LANCEOLATA ; NITROGEN ; DYNAMICS ; MIXTURES ; FORESTS ; KEERQIN ; QUALITY ; CARBON
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
EI主题词	2019-10-01
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310102
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Liaoning, Peoples R China; 2.Chinese Acad Sci, Inst Appl Ecol, Daqinggou Ecol Stn, Shenyang 110016, Liaoning, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Peking Univ, Coll Urban & Environm Sci, Sino French Inst Earth Syst Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Song, Huan-Huan,Yan, Tao,Zeng, De-Hui. Establishment of mixed plantations of Pinus sylvestris var. mongolica and Populus x xiaozhuanica may not be appropriate: evidence from litter decomposition[J]. 北京大学,2019,12(5):857-870.
APA	Song, Huan-Huan,Yan, Tao,&Zeng, De-Hui.(2019).Establishment of mixed plantations of Pinus sylvestris var. mongolica and Populus x xiaozhuanica may not be appropriate: evidence from litter decomposition.JOURNAL OF PLANT ECOLOGY,12(5),857-870.
MLA	Song, Huan-Huan,et al."Establishment of mixed plantations of Pinus sylvestris var. mongolica and Populus x xiaozhuanica may not be appropriate: evidence from litter decomposition".JOURNAL OF PLANT ECOLOGY 12.5(2019):857-870.