干旱区生态环境知识资源中心(Arid): Research on the Application of Palm Mat Geotextiles for Sand Fixation in the Hobq Desert

Arid

DOI	10.3390/su11061751
	Research on the Application of Palm Mat Geotextiles for Sand Fixation in the Hobq Desert
	Zhong, Shuai 1; Han, Zhiwen 1; Li, Aimin 1,2; Du, Heqiang 1
通讯作者	Zhong, Shuai
来源期刊	SUSTAINABILITY
ISSN	2071-1050
出版年	2019
卷号	11 期号:6
英文摘要	Traditional sand fixation measures have many limitations. For example, engineering sand fixation measures using barriers cannot completely stabilize sand dunes. Biological sand fixation measures utilizing planted vegetation are very difficult to build during the early stages of desertification control. Chemical sand fixation measures spray chemically bonded materials on sand dunes to form a consolidated layer to prevent sand flow, but the cost of the materials used is relatively high. Therefore, new sand fixation technologies and methods urgently need to be developed. This study demonstrates a new sand fixation method, which uses palm mat geotextiles to stabilize sand dunes and to plant grass. We investigated the physical properties of these palm mat geotextiles in the laboratory and observed vegetation growth in the Hobq Desert. The results showed the following: (1) Palm mat geotextiles are lighter and tougher than common straw mat geotextiles. The average weight, thickness, and tensile strength of palm mat geotextiles are 2023 g/m(2), 20.14 mm, and 842-860 kPa, respectively. After a year of field observations, the tensile strength decreased by only 2%. (2) Palm mat geotextiles have excellent water retention capacity and scouring resistance; the maximum water content reached 227%, and the substrate lost 2.9% after laboratory simulation of heavy rainfall for three hours with a rainfall intensity of 30 mm h(-1). (3) Palm mat geotextiles significantly decreased the soil temperature and increased moisture in summer. The results showed that the palm mat geotextiles had the largest influence on soil temperature in the upper 5 cm of soil and the largest influence on soil moisture in the upper 10 cm of soil. (4) The field experimental results showed that, by the end of the experiment, the vegetation coverage and the biomass of the palm mat geotextiles with dimensions of 2 x 2 m were 3.9 times and 4.1 times that of the control group and 1.7 times and 1.8 times that of the group of high-banded Salix psammophila sand barriers, which are widely used in the Hobq Desert at present. Palm mat geotextiles are a promising material for sand fixation in the Hobq Desert.
英文关键词	growth promotion palm mat geotextiles physical property sand fixation
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000464350400024
WOS关键词	EROSION ; DESERTIFICATION ; NORTH
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218979
作者单位	1.Chinese Acad Sci, Key Lab Desert & Desertificat, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 2.Heze Univ, Resources & Environm Dept, Heze 274015, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Shuai,Han, Zhiwen,Li, Aimin,et al. Research on the Application of Palm Mat Geotextiles for Sand Fixation in the Hobq Desert[J],2019,11(6).
APA	Zhong, Shuai,Han, Zhiwen,Li, Aimin,&Du, Heqiang.(2019).Research on the Application of Palm Mat Geotextiles for Sand Fixation in the Hobq Desert.SUSTAINABILITY,11(6).
MLA	Zhong, Shuai,et al."Research on the Application of Palm Mat Geotextiles for Sand Fixation in the Hobq Desert".SUSTAINABILITY 11.6(2019).