松嫩平原不同类型土壤剖面形态描述及其性状分析
作者:
作者单位:

(1.吉林省农业科学院,吉林 长春 130033;2.国家土壤肥力与肥料效益长期定位监测基地,吉林 公主岭 136100;3.中国科学院南京土壤研究所江苏常熟农田生态系统野外科学观测研究站,江苏 南京 210008;4.白城市自然资源局洮北镇自然资源管理总站,吉林 白城 137099)

作者简介:

高纪超(1989-),博士,助理研究员,主要从事土壤资源研究及土壤培肥工作,E-mail:gaojichao0918@126.com。

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基金项目:

基金项目:科技部基础资源调查专项;松嫩平原南部薄层黑土农田土壤资源与健康状况调查(2021FY100402)。


Description and analysis of profiles and characteristics of different soil types in Songnen Plain
Author:
Affiliation:

(1.Jilin Academy of Agricultural Science,Changchun Jilin 130033;2.National Long-term Location Monitoring Base on Black Soil Fertility and Fertilizer Efficiency,Gongzhuling Jilin 136100;3.State Key Laboratory of Soil and Sustainable Agriculture,Changshu National Agro-Ecosystem Observation and Research Station,Institute of Soil Science,Chinese Academy of Sciences,Nanjing Jiangsu 210008;4.Taobei Town Natural Resources Management Station,Baicheng Natural Resources Bureau,Baicheng Jilin 137099)

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    摘要:

    土壤剖面观察及描述是土壤分类的基础工作,而各层次性状分析是土壤健康评估的重要参考指标。以松嫩平原为主要研究区域,选取4 种不同类型土壤:黑钙土(HGT)、厚层黑土(HHT)、薄层黑土(BHT)、风沙土(FST),在垂直和水平两种空间尺度上开展剖面对比调查工作。调查结果指出,4 种土壤中HHT 和BHT 质地最为黏重,而FST 质地最轻。另外,除FST 外,其他3 种土壤随土层深度增加砂粒含量逐渐升高,HGT、HHT、BHT 分别升高了21%、125%、122%,质地逐渐变轻。土壤剖面颜色随土层深度增加而逐渐加深,HHT 剖面整体颜色较其他土壤相比较深。土壤pH 随土层深度加深呈逐渐升高的趋势,HGT、HHT、BHT、FST 分别提高了58%、44%、22%、37%,HHT 土体pH 显著高于其他土壤类型(P<0.05)。土壤有机碳(SOC)随剖面深度增加呈下降的趋势,HGT、HHT、BHT、FST 中SOC 含量分别降低了21%、41%、26%、23%,其中HHT 在0 ~ 60 cm土层中SOC 含量显著高于其他类型土壤。土壤养分含量随剖面深度加深同样呈逐渐降低的趋势,4 种类型土壤中碱解氮、速效钾和有效磷含量随土层加深分别降低了38.1% ~ 68.2%、46.3% ~ 98.3% 和100%。综合分析,在垂直空间尺度上,土壤随深度增加发育程度减弱,有机质及养分含量降低,表层土壤酸化现象显著。在水平空间尺度上,厚层黑土的发育程度高于其他类型土壤。

    Abstract:

    Soil profile survey and description is the basic work of soil classification. Physicochemical properties analysis of soil profile is the essential work in evaluating soil qualities. Taking Songnen Plain as the research area,four different soil types were included:chernozem(HGT),thick layer black soil(HHT),thin layer black soil(BHT),aeolian soil(FST). The investigation was comparatively carried out through vertical and horizontal ways. Results showed that the texture of HHT and BHT were finer than other soil types,and HGT had the coarsest texture. Sand content were increased by 21% in HGT,125% in HHT,122% in BHT,respectively,with the deepening of soil layer,and textures were becoming coarser in all soil types,except for FST. Soil color became darker with the deepen depth,and HHT profile color was darker than other soil types. Soil pH exhibited increased trend with the depth deepening,the soil pH in HGT,HHT,BHT,FST were raised by 58%,44%,22%,37%,respectively. The pH of HHT was significantly higher than other soil types(P<0.05).Soil organic carbon(SOC)in HGT,HHT,BHT,FST were decreased by 21%,41%,26%,23% along with the deepening soil layers,respectively. The SOC content in 0-60 cm of HHT was significantly higher than other soil types. Soil nutrients were declined with the soil depth,the available nitrogen,available potassium and available phosphorus in different soil types were averagely reduced by 38.1%-68.2%,46.3%-98.3% and 100%,respectively. From these results,it can be summarized that,on vertical scale,soil development degree,SOC content and soil nutrients were all weakened with soil layer deepening and a significant acidification were found in top soil layers. On horizontal scale,layer black soil has a higher development degree than other soil types.

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高纪超,李强,高洪军,张秀芝,彭畅,焦云飞,朱平,武俊男,徐灵颍,岳娜.松嫩平原不同类型土壤剖面形态描述及其性状分析[J].中国土壤与肥料,2024,(3):1-7.

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  • 收稿日期:2023-04-03
  • 最后修改日期:
  • 录用日期:2023-07-03
  • 在线发布日期: 2024-06-06
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