干旱区生态环境知识资源中心(Arid): Impact of desertification on soil and plant nutrient stoichiometry in a desert grassland

Arid

DOI	10.1038/s41598-019-45927-0
	Impact of desertification on soil and plant nutrient stoichiometry in a desert grassland
	An, Hui 1; Tang, Zhuangsheng 2; Keesstra, Saskia 3,4; Shangguan, Zhouping 2
通讯作者	Shangguan, Zhouping
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2019
卷号	9
英文摘要	Grassland degradation resulting from desertification often alters the carbon (C), nitrogen (N) and phosphorus (P) cycles within grassland ecosystems. To estimate the effects of desertification on the C, N, and P concentrations and C:N:P stoichiometry of plants and soil, we examined C, N, and P concentrations in plant tissues (leaves, roots and litter) and soil across five degrees of desertification in the desert grassland of Ningxia, China (control, light, moderate, severe and very severe desertification stages). The C, N, and P concentrations and C:N:P stoichiometry of the leaves, roots and litter differed among the different desertification stages. Desertification resulted in opposing trends between the leaf N concentration and leaf C:N ratio. With the exception of the very severe desertification stage, the leaf N:P ratio decreased over the process of grassland desertification. The soil C, N, and P concentrations and soil N:P and C:P ratios decreased significantly along the grassland desertification gradient. In contrast, the soil C:N ratio remained relatively stable during desertification (10.85 to 11.48). The results indicate that desertification is unfavourable to C and N fixation and has a negative effect on the ecosystem structure and function of desert grassland.
类型	Article
语种	英语
国家	Peoples R China ; Netherlands ; Australia
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000473294100009
WOS关键词	N-P RATIOS ; SANDY LAND ; NITROGEN ; CARBON ; TERRESTRIAL ; VEGETATION ; PATTERNS ; RESTORATION ; DEGRADATION ; ECOSYSTEMS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218796
作者单位	1.Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Ningxia 750021, Peoples R China; 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; 3.Wageningen Univ, Soil Phys & Land Management Grp, NL-6708 PB Wageningen, Netherlands; 4.Univ Newcastle, Civil Surveying & Environm Engn, Callaghan, NSW 2308, Australia
推荐引用方式 GB/T 7714	An, Hui,Tang, Zhuangsheng,Keesstra, Saskia,et al. Impact of desertification on soil and plant nutrient stoichiometry in a desert grassland[J]. 西北农林科技大学,2019,9.
APA	An, Hui,Tang, Zhuangsheng,Keesstra, Saskia,&Shangguan, Zhouping.(2019).Impact of desertification on soil and plant nutrient stoichiometry in a desert grassland.SCIENTIFIC REPORTS,9.
MLA	An, Hui,et al."Impact of desertification on soil and plant nutrient stoichiometry in a desert grassland".SCIENTIFIC REPORTS 9(2019).