干旱区生态环境知识资源中心(Arid): Silicon accumulation by Phragmites australis positively responds to rise in groundwater depth in the desert oasis areas of the HeXi Corridor, China

Arid

DOI	10.1002/ldr.4041
	Silicon accumulation by Phragmites australis positively responds to rise in groundwater depth in the desert oasis areas of the HeXi Corridor, China
	Kang, Jianjun; Zhao, Wen Zhi; Zhang, Cai Xia; Wang, Zhiwei; Li, Hong
通讯作者	Zhao, WZ (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basins, Linze Inland River Basin Res Stn,Chinese Ecosyst, Lanzhou 730000, Gansu, Peoples R China.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2021
卷号	32 期号:15 页码:4350-4361
英文摘要	Our study investigated the characteristics of Phragmites australis (Gramineae) silicon (Si) accumulation, and the response relationship between P. australis Si accumulation and groundwater depth changes. Plants were dug out and taken back to the laboratory for Si accumulation analysis, and a supplementary survey of P. australis Si accumulation was conducted among different groundwater depths. Result showed that Si absorbed and accumulated by P. australis mainly came from the soil and the Si accumulation differed significantly in tissues and growth stages, and the total Si accumulations (withering stage) of P. australis in sand dune (SD), desert steppe (DT), interdune lowland (IL), saline meadow (SM), and wetland (W) habitats were 7.09%, 6.77%, 5.72%, 7.73%, and 8.12%, respectively. More importantly, P. australis Si accumulation was almost equal to the total accumulation of nitrogen, phosphorus, and potassium, and even higher than of the total accumulation of calcium, magnesium, and sulfur. P. australis Si accumulation (withering stage) reduced first from SD to DT habitat, and then increased remarkably from DT to W habitat with a significant increase of -23.95% and 41.96%, respectively. P. australis Si accumulation positively responds to the groundwater depths, and the relationship was an increasing linear function of one variable. Our findings suggested that accumulating Si might be one of the effective strategies for P. australis to adapt to adverse habitats, and the Si-rich characteristic of P. australis was likely to lay a solid theoretical foundation for exploring effective measures to restore and reconstruct the degraded ecosystems in desert oasis areas.
英文关键词	desert oasis different landscape habitats ecological restoration Gramineae Si-rich characteristic
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000686388800001
WOS关键词	DROUGHT STRESS ; WATER ; SALT ; RESISTANCE ; PLANTS
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364102
作者单位	[Kang, Jianjun; Zhao, Wen Zhi; Zhang, Cai Xia] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basins, Linze Inland River Basin Res Stn,Chinese Ecosyst, Lanzhou 730000, Gansu, Peoples R China; [Wang, Zhiwei] Guizhou Acad Agr Sci, Guizhou Inst Prataculture, Guiyang, Peoples R China; [Li, Hong] Lanzhou Vocat Tech Coll, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Kang, Jianjun,Zhao, Wen Zhi,Zhang, Cai Xia,et al. Silicon accumulation by Phragmites australis positively responds to rise in groundwater depth in the desert oasis areas of the HeXi Corridor, China[J],2021,32(15):4350-4361.
APA	Kang, Jianjun,Zhao, Wen Zhi,Zhang, Cai Xia,Wang, Zhiwei,&Li, Hong.(2021).Silicon accumulation by Phragmites australis positively responds to rise in groundwater depth in the desert oasis areas of the HeXi Corridor, China.LAND DEGRADATION & DEVELOPMENT,32(15),4350-4361.
MLA	Kang, Jianjun,et al."Silicon accumulation by Phragmites australis positively responds to rise in groundwater depth in the desert oasis areas of the HeXi Corridor, China".LAND DEGRADATION & DEVELOPMENT 32.15(2021):4350-4361.