Biomass allocation and productivity-richness relationship across four grassland types at the Qinghai Plateau

NWIPB OpenIR

	Biomass allocation and productivity-richness relationship across four grassland types at the Qinghai Plateau
	Dai, Licong; Guo, Xiaowei; Ke, Xun; Lan, Yuting; Zhang, Fawei; Li, Yikang; Lin, Li; Li, Qian; Cao, Guangmin; Fan, Bo; Qian, Dawen; Zhou, Huakun; Du, Yangong
	2019
发表期刊	ECOLOGY AND EVOLUTION
卷号	10 期号:1
摘要	Aboveground biomass (AGB) and belowground biomass (BGB) allocation and productivity-richness relationship are controversial. Here, we assessed AGB and BGB allocation and the productivity-richness relationship at community level across four grassland types based on the biomass data collected from 80 sites across the Qinghai Plateau during 2011-2012. The reduced major axis regression and general linear models were used and showed that (a) the median values of AGB were significantly higher in alpine meadow than in other three grassland types; the ratio of root to shoot (R/S) was significantly higher in desert grassland (36.06) than intemperate grassland (16.60), alpine meadow (13.35), and meadow steppe (19.46). The temperate grassland had deeper root distribution than the other three grasslands, with about 91.45% roots distributed in the top 30 cm soil layer. (b) The slopes between log AGB and log BGB in the temperate grassland and meadow steppe were 1.09 and 1, respectively, whereas that in the desert grassland was 1.12, which was significantly different from the isometric allocation relationship. A competitive relationship between AGB and BGB was observed in the alpine meadow with a slope of -1.83, indicating a trade-off between AGB and BGB in the alpine meadow. (c) A positive productivity-richness relationship existed across the four grassland types, suggesting that the positive productivity-richness relationship might not be affected by the environmental factors at the plant location. Our results provide a new insight for biomass allocation and biodiversity-ecosystem functioning research.
关键词	above- and belowground biomass allocation grassland types productivity-richness relationship Qinghai Plateau reduced major axis
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60477
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Dai, Licong,Guo, Xiaowei,Ke, Xun,et al. Biomass allocation and productivity-richness relationship across four grassland types at the Qinghai Plateau[J]. ECOLOGY AND EVOLUTION,2019,10(1).
APA	Dai, Licong.,Guo, Xiaowei.,Ke, Xun.,Lan, Yuting.,Zhang, Fawei.,...&Du, Yangong.(2019).Biomass allocation and productivity-richness relationship across four grassland types at the Qinghai Plateau.ECOLOGY AND EVOLUTION,10(1).
MLA	Dai, Licong,et al."Biomass allocation and productivity-richness relationship across four grassland types at the Qinghai Plateau".ECOLOGY AND EVOLUTION 10.1(2019).