Influencing Factors and Intensity Change of Soil pH Value in South Jiangxi Province

Liu Xuesong; Zhang Zhiyin; Wei Jianpeng

doi:10.13961/j.cnki.stbctb.2021.04.014

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Influencing Factors and Intensity Change of Soil pH Value in South Jiangxi Province

- Influencing Factors and Intensity Change of Soil pH Value in South Jiangxi Province
- Bulletin of Soiland Water Conservation Vol. 41, Issue 4, Pages: 100-105(2021)
- 作者机构：
  
  中国地质调查局水文地质环境地质调查中心,河北,保定,071051
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2021.04.014
  CLC： S147.2
- Published：2021
- 稿件说明：
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Liu Xuesong, Zhang Zhiyin, Wei Jianpeng. Influencing Factors and Intensity Change of Soil pH Value in South Jiangxi Province[J]. Bulletin of Soiland Water Conservation, 2021, 41(4): 100-105.
DOI：

Liu Xuesong, Zhang Zhiyin, Wei Jianpeng. Influencing Factors and Intensity Change of Soil pH Value in South Jiangxi Province[J]. Bulletin of Soiland Water Conservation, 2021, 41(4): 100-105. DOI： 10.13961/j.cnki.stbctb.2021.04.014.

摘要

[目的] 研究赣南地区土壤pH值的影响因素和强度，为该区土壤酸化防治提供科学依据。[方法] 以江西省赣州市南康区8 167组表层土壤为研究对象，利用卡方检验、相关系数等统计学方法，对土壤pH值分布特征及影响因素进行分析。[结果] 研究区83.1%的土壤为强酸性（pH<5.0），中性及碱性土壤比例小于17%。土壤pH值主要受成土母质和地质背景等自然因素的影响，影响强度表现为：成土母质 > 地质背景 > 高程 > 用地类型 > 地貌。酸性土壤分布在古生代火成岩和地势较高的元素流失区；中生代沉积岩和地势低洼元素富集区中土壤呈现碱性化，同时人类活动对土壤酸化的贡献不容忽视。[结论] 赣南地区土壤pH值形成主要受成土母质和地质背景控制，人类活动促使土壤pH值在不同土地利用类型上出现一定程度的异化。

Abstract

[Objective] The influencing factors and intensity of soil pH value in Southern Jiangxi Province were studied to provide a scientific basis for soil acidification prevention and control. [Methods] 8 167 surface soil samples in Nankang District

Ganzhou City were collected

and the distribution characteristics and influencing factors of soil pH value were analyzed by using Chi-square test and correlation coefficient methods. [Results] 83.1% of the soil in the study area was highly acidity (pH<5.0)

and the proportion of neutral and alkaline soil was less than 17%. The soil pH value was mainly affected by natural factors such as soil parent material and geological background. The influence intensity was as follows: parent material > geological background > elevation > land type > landform. Acidic soil was distributed in Paleozoic igneous rocks and the element loss areas with higher terrain

the soil in Mesozoic sedimentary rocks and low-lying areas with rich elements was alkaline. At the same time

the contribution of human activities to soil acidification could not be ignored. [Conclusion] The soil pH value in Southern Jiangxi Province is mainly controlled by soil parent material and geological background

and human activities have caused a certain difference in soil pH value in different land use types.

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