干旱区生态环境知识资源中心(Arid): Decade-long unsustainable vegetation management practices increase macronutrient losses from the plant-soil system in the Taklamakan Desert

Arid

DOI	10.1016/j.ecolind.2022.109653
	Decade-long unsustainable vegetation management practices increase macronutrient losses from the plant-soil system in the Taklamakan Desert
	Tariq, Akash; Graciano, Corina; Sardans, Jordi; Ullah, Abd; Zeng, Fanjiang; Ullah, Ihteram; Ahmed, Zeeshan; Ali, Sikandar; Al-Bakre, Dhafer A.; Zhang, Zhihao; Bai, Yanfu; Wang, Weiqi; Penuelas, Josep
通讯作者	Tariq, A ; Zeng, FJ
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2022
卷号	145
英文摘要	Arid ecosystems are characterized by low availability and mobility of soil nutrients and slow geochemical cycles. Management of native vegetation in such ecosystems for fuel, livestock grazing, and other agricultural activities (burning and cutting) may threaten semi-natural communities due to the changes in nutrient cycles and soil fertility. Alhagi sparsifolia is a dominant perennial legume in the Taklamakan Desert of northwestern China and has been used as fodder for livestock and plays a crucial ecological role in stabilizing dunes in the oasis-desert ecotone. We evaluated the effects of long-term (12 years) burning and cutting of plant biomass on the mineral nutrition of A. sparsifolia and associated soils at two depths (0-50 and 50-100 cm) in the field conditions following the block design experiment. We found that burning effects tended to be restricted to the topsoil (0-50 cm), and the concentration of many micro-and macronutrients was increased. Burning was associated with a decrease in plant nitrogen (N) and phosphorus (P) concentration, whereas concentrations of other micro-and macronutrients increased; overall, burning reduced foliar stocks of N, P, and potassium (K). Annual cutting elicited smaller increases in soil mineral (total sulfur, total P, calcium, magnesium, and available P and K) concentrations than burning, and soil enzymatic activities increased. There were contrasting response patterns of leaf N and P concentration and macro-and micronutrients between the two management approaches. Burning and cutting reduced leaf N and P concentrations, while changes in root and shoot N and P concentrations depended on treatments. Thus, burning and cutting of A. sparsifolia impact organ nutrient stoichiometry (increased losses of macronutrients from arid plant-soil ecosystems) and nutritional quality (for feeding livestock), particularly due to predicted rises in extreme climatic events under climate change that are expected to increase risks of soil erosion, however, impacts on native trophic webs remain unclear.
英文关键词	Alhagi sparifolia Fire Harvesting Mineral nutrition Sustainable management
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000886225400002
WOS关键词	WATER-USE EFFICIENCY ; MICROBIAL BIOMASS ; SOUTHERN FRINGE ; CUTTING REGIMES ; ORGANIC-CARBON ; FIRE ; NUTRIENT ; NITROGEN ; GRASSLAND ; IMPACTS
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392362
推荐引用方式 GB/T 7714	Tariq, Akash,Graciano, Corina,Sardans, Jordi,et al. Decade-long unsustainable vegetation management practices increase macronutrient losses from the plant-soil system in the Taklamakan Desert[J],2022,145.
APA	Tariq, Akash.,Graciano, Corina.,Sardans, Jordi.,Ullah, Abd.,Zeng, Fanjiang.,...&Penuelas, Josep.(2022).Decade-long unsustainable vegetation management practices increase macronutrient losses from the plant-soil system in the Taklamakan Desert.ECOLOGICAL INDICATORS,145.
MLA	Tariq, Akash,et al."Decade-long unsustainable vegetation management practices increase macronutrient losses from the plant-soil system in the Taklamakan Desert".ECOLOGICAL INDICATORS 145(2022).