Response of soil respiration to precipitation during the dry season in two typical forest stands in the forest-grassland transition zone of the Loess Plateau

ISWC OpenIR > 水保所知识产出(1956---)

	Response of soil respiration to precipitation during the dry season in two typical forest stands in the forest-grassland transition zone of the Loess Plateau
	Shi Wei-Yu; Tateno Ryunosuke; Zhang Jian-Guo; Du, S
	2011
发表期刊	AGRICULTURAL AND FOREST METEOROLOGY
卷号	151 期号:7 页码:854-863
摘要	Forest ecosystems on the Loess Plateau are receiving increasing attention for their special importance in carbon fixation and conservation of soil and water in the region. Soil respiration was investigated in two typical forest stands of the forest-grassland transition zone in the region, an exotic black locust (Robinia pseudoacacia) plantation and an indigenous oak (Quercus liaotungensis) forest, in response to rain events (27.7 mm in May 2009 and 19 mm in May 2010) during the early summer dry season. In both ecosystems, precipitation significantly increased soil moisture, decreased soil temperature, and accelerated soil respiration. The peak values of soil respiration were 4.8 and 4.4 mu mol CO(2) m(-2) s(-1) in the oak plot and the black locust plot, respectively. In the dry period after rainfall, the soil moisture and respiration rate gradually decreased and the soil temperature increased. Soil respiration rate in black locust stand was consistently less than that in oak stand, being consistent with the differences in C, N contents and fine root mass on the forest floor and in soil between the two stands. However, root respiration (R(r)) per unit fine root mass and microbial respiration (R(m)) per unit the amount of soil organic matter were higher in black locust stand than in oak stand. Respiration by root rhizosphere in black locust stand was the dominant component resulting in total respiration changes, whereas respiration by roots and soil microbes contributed equally in oak stand. Soil respiration in the black locust plantation showed higher sensitivity to precipitation than that in the oak forest. (C) 2011 Elsevier B.V. All rights reserved.
关键词	Exotic Black Locust Plantation Forest-grassland Transition Indigenous Oak Forest Loess Plateau Precipitation Semiarid Region Soil Respiration
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/4697
专题	水保所知识产出(1956---)
通讯作者	Du, S
推荐引用方式 GB/T 7714	Shi Wei-Yu,Tateno Ryunosuke,Zhang Jian-Guo,et al. Response of soil respiration to precipitation during the dry season in two typical forest stands in the forest-grassland transition zone of the Loess Plateau[J]. AGRICULTURAL AND FOREST METEOROLOGY,2011,151(7):854-863.
APA	Shi Wei-Yu,Tateno Ryunosuke,Zhang Jian-Guo,&Du, S.(2011).Response of soil respiration to precipitation during the dry season in two typical forest stands in the forest-grassland transition zone of the Loess Plateau.AGRICULTURAL AND FOREST METEOROLOGY,151(7),854-863.
MLA	Shi Wei-Yu,et al."Response of soil respiration to precipitation during the dry season in two typical forest stands in the forest-grassland transition zone of the Loess Plateau".AGRICULTURAL AND FOREST METEOROLOGY 151.7(2011):854-863.

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