基于土壤团粒结构的土壤质量评价  

Soil Quality Evaluation Based on Soil Aggregate Structure

作　　者：邓照亮 DENG Zhaoliang(Ecological Environmental Protection Comprehensive Administrative Law Enforcement Brigade of Susong County,Anqing City,Susong Anhui 246500)

机构地区：[1]安庆市宿松县生态环境保护综合行政执法大队,安徽宿松246500

出　　处：《现代农业科技》2023年第22期127-130,135,共5页Modern Agricultural Science and Technology

基　　金：国家重点基础研究发展计划(973项目)课题“土壤团粒结构对土壤微生物区系稳定与功能发挥研究”(2015CB150504)。

摘　　要：通过比较不同质量类型土壤的团粒结构,可为基于团粒结构初步鉴别土壤质量提供一种参考。本研究比较了海南连作蕉园抑病型和导病型土壤的团粒结构差异。结果表明:无论是砖红壤还是沙壤,抑病型土壤>2.000 mm和>0.250~2.000 mm粒级团聚体含量均比导病型土壤高,其中>2.000 mm粒级团聚体含量差异更加显著;在0~<0.25 mm和0.25~2.00 mm粒级之间,抑病型土壤比导病型土壤含有更多大颗粒;二者在0~<0.25 mm之间粒度分布差异更加明显。由此表明,含有更多水稳定性大团聚体的土壤质量可能更好。By comparing the aggregate structure of different quality types of soil,a reference can be provided for preliminary identification of soil quality based on the characterization of aggregate structure.This paper compared the aggregate structure differences of suppressive soils and conducive soils in Hainan continuous cropping banana plantations.The results showed that both in latosol and in sandy loam,the contents of>2.000 mm aggregate and>0.250-2.000 mm aggregate in suppressive soils were larger than those in conducive soils.Among them,the content difference of>2.000 mm aggregate was more significant.Between 0-<0.25 mm partical size and 0.25-2.00 mm partical size,suppressive soils contained more large particles than conducive soils.Among them,the differences of particle size distribution of 0-<0.25 mm was more obvious.It indicates that soil with more water-stable macroaggregates has better quality.

关 键 词：土壤团聚体 抑病型土壤 导病型土壤 土壤质量 

分 类 号：S152.4[农业科学—土壤学]