气候变化领域集成服务门户(CCPortal): Distribution, biomass, and dynamics of roots in a revegetated stand of Caragana korshinskii in the Tengger Desert, northwestern China

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DOI	10.1007/s10265-008-0196-2
	Distribution, biomass, and dynamics of roots in a revegetated stand of Caragana korshinskii in the Tengger Desert, northwestern China
	Zhang, Zhi-Shan; Li, Xin-Rong; Liu, Li-Chao; Jia, Rong-Liang; Zhang, Jing-Guang; Wang, Tao
发表日期	2009
ISSN	0918-9440
卷号	122 期号:1
英文摘要	A field experiment was conducted to investigate root distribution, biomass, and seasonal dynamics in a revegetated stand of Caragana korshinskii Kom. in the Tengger Desert. We used soil profile trenches, soil core sampling, and minirhizotron measurements to measure root dynamics. Results showed that the roots of C. korshinskii were distributed vertically in the uppermost portion of the soil profile, especially the coarse roots, which were concentrated in the upper 0.4 m. The horizontal distribution of the root length and weight of C. korshinskii coarse roots was concentrated within 0.6 and 0.4 m of the trunk, respectively. The lateral distribution of fine roots was more uniform than coarse roots. Total-root and fine-root biomasses were 662.4 +/- A 45.8 and 361.1 +/- A 10.3 g m(-2), accounting for about two-thirds and one-third of the total plant biomass, respectively. Fine-root turnover is closely affected by soil water, and both of these parameters showed synchronously seasonal trends during the growing season in 2004 and 2005. The interaction between fine-root turnover and soil water resulted in the fine-root length densities and soil water content in the 0- to 1.0-m soil layer having similar trends, but the soil water peaks occurred before those of the fine-root length densities.
关键词	Minirhizotrons Soil core sampling Soil water content Trenching Xero-shrub
学科领域	Plant Sciences
语种	英语
WOS研究方向	Plant Sciences
来源期刊	JOURNAL OF PLANT RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111553
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhi-Shan,Li, Xin-Rong,Liu, Li-Chao,et al. Distribution, biomass, and dynamics of roots in a revegetated stand of Caragana korshinskii in the Tengger Desert, northwestern China[J]. 中国科学院西北生态环境资源研究院,2009,122(1).
APA	Zhang, Zhi-Shan,Li, Xin-Rong,Liu, Li-Chao,Jia, Rong-Liang,Zhang, Jing-Guang,&Wang, Tao.(2009).Distribution, biomass, and dynamics of roots in a revegetated stand of Caragana korshinskii in the Tengger Desert, northwestern China.JOURNAL OF PLANT RESEARCH,122(1).
MLA	Zhang, Zhi-Shan,et al."Distribution, biomass, and dynamics of roots in a revegetated stand of Caragana korshinskii in the Tengger Desert, northwestern China".JOURNAL OF PLANT RESEARCH 122.1(2009).