Aboveground dominant functional group predicts belowground properties in an alpine grassland community of western China

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	Aboveground dominant functional group predicts belowground properties in an alpine grassland community of western China
	Wu Gao-Lin ; Li Wei ; Shi Zhi-Hua
刊名	JOURNAL OF SOILS AND SEDIMENTS
	2011
卷号	11 期号:6 页码:1011-1019
关键词	Biomass production Grassland ecosystem Plant functional group (PFG) Soil chemical properties Vegetation structure
通讯作者	Wu, GL
英文摘要	It has been suggested that above and belowground interactions produce important feedbacks in natural ecosystems. It is necessary to study the relationships between aboveground plant functional group traits and belowground biomass and soil chemical properties in natural grasslands. In a field study, four natural alpine meadows dominated by different plant functional groups were selected. We assigned the plant species to one of two functional groups: the grasses functional group (GFG) or the forbs functional group (FFG). The aboveground GFG and FFG biomass and total belowground biomass were measured. At the same time, for each sampling quadrat, soil pH, soil organic matter (SOM), total nitrogen (TN), available nitrogen (AN), total phosphorus (TP), and available phosphorus (AP) were determined. GFG-dominated meadows had significantly higher total belowground biomass, SOM, TN, TP, AN, and AP than FFG-dominated meadows. Correlation analyses showed that total belowground biomass (to a depth of 30 cm) and soil nutrient contents were significantly and positively correlated with the GFG biomass proportion, but negatively correlated with the FFG biomass proportion. There were significant positive correlations among above and belowground biomass and the soil chemical properties studied. The GFG proportion may thus be an indicator of soil chemical properties in the studied meadow types. This implies that natural increases in, or introduction of more, GFG species in FFG-dominated meadows may improve soil nutrient conditions. This study provides the basis of understanding for future studies on plant-soil interactions and feedbacks in grassland ecosystems.
收录类别	SCI
语种	英语
公开日期	2012-05-30
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/4689]
专题	水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式 GB/T 7714	Wu Gao-Lin,Li Wei,Shi Zhi-Hua. Aboveground dominant functional group predicts belowground properties in an alpine grassland community of western China[J]. JOURNAL OF SOILS AND SEDIMENTS,2011,11(6):1011-1019.
APA	Wu Gao-Lin,Li Wei,&Shi Zhi-Hua.(2011).Aboveground dominant functional group predicts belowground properties in an alpine grassland community of western China.JOURNAL OF SOILS AND SEDIMENTS,11(6),1011-1019.
MLA	Wu Gao-Lin,et al."Aboveground dominant functional group predicts belowground properties in an alpine grassland community of western China".JOURNAL OF SOILS AND SEDIMENTS 11.6(2011):1011-1019.