干旱区生态环境知识资源中心(Arid): Influence of Living and Dead Roots of Gansu Poplar on Water Infiltration and Distribution in Soil

Arid

DOI	10.3390/app10103593
	Influence of Living and Dead Roots of Gansu Poplar on Water Infiltration and Distribution in Soil
	Zhang, Dashuai 1,2; Dai, Yao 1,2; Wang, Lingli 3,4; Chen, Liang 1,2
通讯作者	Chen, Liang
来源期刊	APPLIED SCIENCES-BASEL
EISSN	2076-3417
出版年	2020
卷号	10 期号:10
英文摘要	During rapid urbanization, it is necessary to increase soil permeability and soil porosity for reducing urban runoff and waterlogging risk. Woody plants are known to increase soil porosity and preferential flow in soil via living roots growth and dead roots decay. However, the primary results of dead woody plant roots on soil porosity and permeability have been discussed based only on the hypotheses or assumptions of different researchers. In this study, living and dead roots (decayed under natural conditions for more than 5 years) of Gansu poplar trees (Populus gansuensis) were selected. They were selected to compare the influence between living and dead roots on water infiltration rate and soil porosity in a cylindrical container (diameter = 20 cm, height = 66 cm) under laboratory conditions. Results indicated that the steady-state water fluxes at the bottom of the containers without roots (control), with living roots, and with dead roots were 54.75 +/- 0.80, 61.31 +/- 0.61, and 55.97 +/- 0.59 cm d(-1), respectively. Both living roots and dead roots increased the water infiltration rates in soil and also increased the water storage capacity of soil. The water storage capacities of soil without roots, with living roots, and with dead roots were 0.279, 0.317, and 0.322 cm(3) cm(-3), respectively. The results from SEM indicated that smaller pores (30-50 mu m) were in living roots and larger pores (100-1000 mu m) were in dead roots. The soil permeability was increased by living roots possibly due to the larger channels generated on the surface of the roots; however, water absorbed into the dead roots resulted in greater water storage capacity.
英文关键词	soil permeability soil porosity water storage capacity woody plant desert poplar Populus gansuensis
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
WOS记录号	WOS:000541440000254
WOS关键词	ORGANIC-MATTER ; PREFERENTIAL FLOW ; DYNAMICS ; IMPACT ; GROUNDWATER ; MACROPORES ; SYSTEMS
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319391
作者单位	1.Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China; 2.Tianjin Univ, Sch Civil Engn, Tianjin 300072, Peoples R China; 3.Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China; 4.Sinomine Rock & Mineral Anal Tianjin Co Ltd, Tianjin 300270, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Dashuai,Dai, Yao,Wang, Lingli,et al. Influence of Living and Dead Roots of Gansu Poplar on Water Infiltration and Distribution in Soil[J],2020,10(10).
APA	Zhang, Dashuai,Dai, Yao,Wang, Lingli,&Chen, Liang.(2020).Influence of Living and Dead Roots of Gansu Poplar on Water Infiltration and Distribution in Soil.APPLIED SCIENCES-BASEL,10(10).
MLA	Zhang, Dashuai,et al."Influence of Living and Dead Roots of Gansu Poplar on Water Infiltration and Distribution in Soil".APPLIED SCIENCES-BASEL 10.10(2020).