气候变化领域集成服务门户(CCPortal): Biomass partitioning and allometric relations of the Reaumuria soongorica shrub in Alxa steppe desert in NW China

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DOI	10.1016/j.foreco.2020.118178
	Biomass partitioning and allometric relations of the Reaumuria soongorica shrub in Alxa steppe desert in NW China
	Ma X.-Z.; Wang X.-P.
发表日期	2020
ISSN	0378-1127
卷号	468
英文摘要	Allometry and partitioning of above- and below-ground biomass are needed to evaluate the sustainability of arid ecosystems. Biomass accumulation, allocation patterns, and allometric relationships for above- and below-ground components of the desert shrub Reaumuria soongorica were studied across five age classes (0–10, 11–20, 21–30, 31–40, and > 40 years) in Alxa desert steppe, northwestern (NW) China, where the biomass of each shrub component (i.e., leaves, branches, and coarse and fine roots) was harvested by destructive sampling and the allocation patterns between leaves (ML), roots (MR), branches (MB) were studied by regression analysis of log10-transformed data, and tested for data classified by age class and pooled data. By using basal diameter, age, height, and canopy area, we can predict the allometry properties of the R. soongorica shrub in terms of age class and/or entire age-sequence. The experimental results indicate that biomass accumulation has an obvious gradient across the five age classes, branch, and coarse root biomass were the main biomass pool as mature shrub. R. soongorica shrub partitioned a greater proportion of total biomass to roots with age in order to adapt to the extreme arid conditions. Shrub allometry was affected by variation of biomass partitioning, where the allometric relationships were strongly related to basal shrub diameter for almost all shrub components. Allometric biomass relationships were improved with the introduction of a second variable crown area. © 2020 Elsevier B.V.
英文关键词	Allocation; Allocation pattern; Biomass partitioning; Reaumuria soongorica; Shrub component
语种	英语
scopus关键词	Aluminum compounds; Biology; Ecosystems; Forestry; Landforms; Regression analysis; Allocation patterns; Allometric relation; Allometric relationship; Arid ecosystems; Biomass accumulation; Biomass partitioning; Destructive sampling; Ground components; Biomass; aboveground biomass; adaptation; allometry; arid region; belowground biomass; biomass allocation; desert; shrub; steppe; Aluminum Compounds; Biology; Biomass; Ecosystems; Forestry; Regression Analysis; China; Reaumuria soongarica
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155247
作者单位	Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Ma X.-Z.,Wang X.-P.. Biomass partitioning and allometric relations of the Reaumuria soongorica shrub in Alxa steppe desert in NW China[J],2020,468.
APA	Ma X.-Z.,&Wang X.-P..(2020).Biomass partitioning and allometric relations of the Reaumuria soongorica shrub in Alxa steppe desert in NW China.Forest Ecology and Management,468.
MLA	Ma X.-Z.,et al."Biomass partitioning and allometric relations of the Reaumuria soongorica shrub in Alxa steppe desert in NW China".Forest Ecology and Management 468(2020).