|Table of Contents|

patial Variability of Soil Saturated Hydraulic Conductivity in  the Yellow River Irrigated Area in Ningxia(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年08
Page:
166-171
Research Field:
Publishing date:

Info

Title:
patial Variability of Soil Saturated Hydraulic Conductivity in  the Yellow River Irrigated Area in Ningxia
Author(s):
ZHAO YunpengBAI YiruWANG YouqiSHI Lei
(College of Resources and Environment,Ningxia University,Yinchuan,Ningxia 750021)
Keywords:
soil saturated hydraulic conductivitygeostatistical statisticsKriging interpolationYellow River Irrigated AreaNingxia
PACS:
-
DOI:
10.11937/bfyy.201708039
Abstract:
The classical and geological statistics were combined to identify the spatial variability of soil saturated hydraulic conductivity and its influencing factors with 10 m×10 m grids in farmland in the Yellow River Irrigated Area in Ningxia Hui Autonomous Region,China.The results showed that the soil saturated hydraulic conductivity had strong variation,capillary porosity,saturation moisture content and soil organic matter showed moderate variations,soil bulk density and total porosity showed weak variation.The geological statistics indicated that saturated hydraulic conductivity,capillary porosity and saturation moisture content were affected by random factors and structural factors,while bulk density,total porosity and soil organic matter primarily affected by structural factors.According to the spatial distribution patterns,saturated hydraulic conductivity had an obvious distribution,while showing high spatial heterogeneity in the local area.The other soil properties had obvious distribution.The total porosity and bulk density was the key influencing factors in saturated hydraulic conductivity by Pearson correlation analysis,followed by saturation moisture content,capillary porosity and soil organic matter.Spatial variability of soil saturated hydraulic conductivity and its influencing factors could provide theoretical guidance for water use efficiency and farmland management.

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Last Update: 2017-05-08