江西省旱地土壤质地与土壤化学性状的相关性研究
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(江西农业大学国土资源与环境学院/江西省鄱阳湖流域农业资源与生态重点实验室,江西 南昌 330045)

作者简介:

王圣(1997-),男,江西省上饶人,在读本科生,主要从事土壤学方面研究。E-mail:444738568@qq.com。

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基金项目:国家自然科学基金(31860589);国家科技部重点研发计划(2017YFD0301601-01)。


Correlation between soil texture and soil chemical properties in dry land of Jiangxi province
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(College of Land Resources and Environment,Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resource and Ecology,Nanchang Jiangxi 330045)

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    摘要:

    通过研究江西省旱地土壤质地及其与化学性状的相关性,为江西省旱地土壤质地的改良提供理论依据。采用比重计速测法和常规化学指标分析方法测定了江西省不同地区的159个旱地土壤样品质地和氮、磷、钾、有机质含量、pH值和阳离子交换量指标,着重分析土壤中物理性粘粒含量及其他各级土粒含量与化学性状的相关性。结果表明:(1)江西省旱地土壤质地以壤土占绝对优势,高达93.71%,而在壤土中中壤土占比为51.57%;(2)土壤物理性粘粒含量与土壤中全氮、碱解氮、有机质含量、阳离子交换量呈显著正相关,与全钾含量呈显著负相关,即土壤颗粒越细,土壤全氮、碱解氮、有机质含量、阳离子交换量越高,土壤全钾含量越低;随着土壤颗粒变细,土壤pH值呈先升高后降低的趋势;土壤有效磷、速效钾、全磷含量与土壤各级土粒含量之间相关性不显著。

    Abstract:

    The study of the soil texture and its correlation with soil chemical properties in Jiangxi province provides a theoretical basis for the improvement of soil texture in Jiangxi province in the future.This research adopted the hydrometer tachometry and the conventional chemical index analysis method for determination of soil texture,nitrogen content,phosphorus content, potassium content,organic matter content,pH and cation exchange capacity of 159 samples from the dry land of the different regions in Jiangxi province.The correlations between soil physical clay content,soil particles content at various levels and chemical properties were emphatically analyzed.The results showed that:(1)The soil texture of dry land in Jiangxi province was dominated by loam,which was up to 93.71%,and the proportion of medium loam in loam was 51.57%.(2)Soil physical clay content was significantly positively related with soil,total nitrogen,alkali hydrolyzed nitrogen,organic matter,and cation exchange capacity,but was significantly negativly correlated with total potassium content.In other words,when the soil particles are finer,soil total nitrogen,alkali hydrolyzed nitrogen,organic matter,cation exchange capacity are higher,but soil total potassium content is lower.The pH of soil increases.first,and.then.decreases.with the soil particles getting finer.There was no significant correlation between the soil available phosphorus,available potassium,soil total phosphorus content and the content of soil particles at all levels.

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王圣,陈科希,袁源远,王泓汇,魏宗强,吴建富,卢志红.江西省旱地土壤质地与土壤化学性状的相关性研究[J].中国土壤与肥料,2021,(6):65-71.

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  • 收稿日期:2020-07-31
  • 最后修改日期:
  • 录用日期:2020-08-14
  • 在线发布日期: 2022-01-21
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