干旱区生态环境知识资源中心(Arid): The role of the locoweed (Astragalus variabilis Bunge) in improving the soil properties of desert grasslands

Arid

DOI	10.1071/RJ20028
	The role of the locoweed (Astragalus variabilis Bunge) in improving the soil properties of desert grasslands
	Wang, Qinghai; Chen, Chao; Pang, Zhuo; Li, Cui; Wang, Dejun; Ma, Qingcheng; Wu, Juying
通讯作者	Wu, JY (corresponding author), Beijing Acad Agr & Forestry Sci, Beijing Res & Dev Ctr Grass & Environm, Beijing 100097, Peoples R China.
来源期刊	RANGELAND JOURNAL
ISSN	1036-9872
EISSN	1834-7541
出版年	2021
英文摘要	Astragalus variabilis Bunge is a widespread locoweed that threatens livestock production in desert grassland. No research has reported its possible ecological functions due to focus being on its negative effect on livestock production. This study aimed to assess the effects of A. variabilis on soil properties and its possible role in improving soil quality in desert grassland. Soil samples were collected in Astragalus patches and the adjacent bare patches over two successive growing seasons in Alxa desert grassland where A. variabilis was favoured to spread. Soil properties including texture, water content, dry bulk density, porosity, available nutrients, organic matter, and soil microbial biomass were determined at 15 study sites. There was no significant difference in soil texture between Astragalus-dominant and bare patches; but organic matter (OM), available N and P, and microbial biomass in surface soil (0-30 cm) were significantly higher in Astragalus patches. Furthermore, microbial biomass showed a significantly positive correlation with available nutrients and OM. Levels of water soluble salt were significantly lower in A. variabilis surface soils under drought conditions. Results suggested that A. variabilis was associated with some positive changes in soil properties, and was potentially important in improving soil chemical and microbial properties in desert grassland ecosystems. Consequently, total elimination of locoweed should not necessarily be considered the best solution to locoweed poisoning in livestock.
英文关键词	Astragalus poisonous plants rangeland soil texture soil available nutrient soil microbial biomass
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000637049800001
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352442
作者单位	[Wang, Qinghai; Chen, Chao; Pang, Zhuo; Li, Cui; Wu, Juying] Beijing Acad Agr & Forestry Sci, Beijing Res & Dev Ctr Grass & Environm, Beijing 100097, Peoples R China; [Wang, Dejun] Tenggeli Anim Hlth Supervis Stn, Alxa League 751799, Inner Mongolia, Peoples R China; [Ma, Qingcheng] Jilantai Anim Hlth Supervis Stn, Alxa League 750333, Inner Mongolia, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qinghai,Chen, Chao,Pang, Zhuo,et al. The role of the locoweed (Astragalus variabilis Bunge) in improving the soil properties of desert grasslands[J],2021.
APA	Wang, Qinghai.,Chen, Chao.,Pang, Zhuo.,Li, Cui.,Wang, Dejun.,...&Wu, Juying.(2021).The role of the locoweed (Astragalus variabilis Bunge) in improving the soil properties of desert grasslands.RANGELAND JOURNAL.
MLA	Wang, Qinghai,et al."The role of the locoweed (Astragalus variabilis Bunge) in improving the soil properties of desert grasslands".RANGELAND JOURNAL (2021).