|Table of Contents|

Effects of Topographic Factors on Soil Organic Carbon Content in Semi-arid Regions

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年16
Page:
104-109
Research Field:
Publishing date:

Info

Title:
Effects of Topographic Factors on Soil Organic Carbon Content in Semi-arid Regions
Author(s):
LI Long1; ZHOU Fei2; TIAN Jie3; WANG Xiaojun4
(1.Desert Science and Engineer College，Inner Mongolia Agricultural University，Hohhot,Inner Mongolia 010018;2.Ordos Longsheng Zoo Co.Ltd.，Ordos,Inner Mongolia 017000；3.Ordos Shengxian Forestry Design Co.Ltd.，Ordos,Inner Mongolia 017000；4.Inner Mongolia Tianrui Soil and Water Conservation Ecological Technology Consulting Services Co.Ltd.，Baotou，Inner Mongolia 014030)
Keywords:
soil organic carbon; soil depth; topographic factors; semi-arid zone
PACS:
-
DOI:
10.11937/bfyy.20190162
Abstract:
Aohan county in Chifeng，Inner Mongolia was collected as the research object.Based on soil survey data，considering the factors of elevation，slope and aspect of the study area，182 soil sampling profiles of the whole Banner were collected.The effect of topographic factors on the organic carbon content of the soil layers in 0-100 cm depth was analyzed.Soil organic carbon(SOC) content decreased significantly with the increase of soil depth.The effect of elevation on SOC content showed that the SOC in 0-60 cm soil depth showed a trend of rising at the elevation of altitude.However，the SOC content under 60 cm depth showed no significant correlation with the change of elevation.As the slope increased，the SOC of each depth soil was shown as increased at first and decreased subsequently.The average SOC content in different slope aspects from high to low was shady slope>half shady slope>half sunny slope>sunny slope，SOC content of shady slope and half shady slope was significantly higher than those of sunny slope and half sunny slope.When the depth of soil reached 40 cm，slope and slope aspect had no influence on SOC content.

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Last Update: 2019-08-30