|Table of Contents|

Analysis of Vertical Zonation of Soil Physical Properties on the Windward Slope of Sygera Mountain in Southeastern Tibet

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年24
Page:
94-102
Research Field:
Publishing date:

Info

Title:
Analysis of Vertical Zonation of Soil Physical Properties on the Windward Slope of Sygera Mountain in Southeastern Tibet
Author(s):
YAO TiantianZHANG PengWAN DanYU Wu12ZHANG BoLIANG Bo
(College of Resources and Environment/Research Center for Alpine and Soil Conservation,Tibet Agriculture and Animal Husbandry College,Linzhi,Tibet 860000)
Keywords:
Sygera Mountainwindward slopesoil physical propertiesvertical zonation
PACS:
-
DOI:
10.11937/bfyy.20190994
Abstract:
In order to find out the vertical zonal spatial variations of soil physical properties on the windward slope in Sygera Mountain,the soil physical properties of Sygera Mountain at different altitude gradients were analyzed,so that we could more accurately understand the potential dangers of soil erosion in the region.The results showed that,1)The soil bulk density,total porosity,capillary porosity and non-capillary porosity ranged from 0.68-1.02 g?cm-3,60.86%-68.52%,51.26%-59.45% and 9.07%-11.19%.The saturated water content and capillary water content followed a similar trend,from large to small,the order was 3 800,4 400,4 600,4 200,3 600,3 400,4 000 m.Field capacity plotted against altitude revealed an M-shaped trend;2)At the same altitude,soil bulk density increased with the increase in soil layer,the total porosity,capillary porosity and water holding capacity were opposite,and the non-capillary porosity was not significantly related to the soil layer;3)Soil bulk density was significantly negatively correlated with total porosity,saturated water content,capillary water contentand,soil permeability (P<0.01),the soil physical properties at different elevations and soil layers had a spatial heterogeneity,and that of surface soil (0-10 cm) were better than the deeper soil layers (>10-30 cm).Vegetation coverage and human disturbance intensity were important reasons underlying the spatial heterogeneity.

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Last Update: 2019-12-31