|Table of Contents|

Comparative Study on Soil Moisture Dynamics of Dunes in Different Sand-binding Vegetations

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年06
Page:
108-115
Research Field:
Publishing date:

Info

Title:
Comparative Study on Soil Moisture Dynamics of Dunes in Different Sand-binding Vegetations
Author(s):
FENG Wei1; LI Wei2; YANG Wenbin2
(1.Xilingol Vocational College,Xilinhot,Inner Mongolia 026000；2.Institute of Desertification Studies,Chinese Academy of Forestry,Beijing 100091)
Keywords:
Mu Us Sandy Land; sand-binding vegetation; EC-5; deep soil water infiltration; soil volumetric water content
PACS:
-
DOI:
10.11937/bfyy.20182011
Abstract:
Taking the dune soil under the main sand-fixing vegetation Artemisia ordosica (coverage 90%),Salix psammophila (coverage 50%-60%),Pinus sylvestris var.mongolica (coverage 35%-40%) in Mu Us Sand Land as test object.The auto-monitoring system used to quantitative monitor precipitation,soil water for 0-200 cm depth,200 cm following leakage water.Analysis for dunes soil moisture dynamic characteristics in different sand-binding vegetation and provides reference for vegetation suitability,stability and sustainability,in order to provide a reference for the stability evaluation of sand-fixing vegetation.The results showed that greater than 20 mm rainfall was large effect 0-30 cm soil moisture.Differences for 60-200 cm soil moisture dynamic characteristics,the P.sylvestris and control the same trend,greater than 40 mm rainfall can be influence 60-200 cm soil moisture for the A.ordosica and S.psammophila.The 0-200 cm vertical variation of soil moisture variability was large and among P.sylvestris has maximum amplitude for (5.03±3.09)%.The three sand-fixing vegetations had water leaking into the following 200 cm depth and consistent with deep percolation characteristics.Overall,low coverage P.sylvestris had good sand-fixing advantage.

References:

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Last Update: 2019-04-18