康奈尔土壤健康评价系统及其应用

被引:30
作者
盛丰 [1 ,2 ]
机构
[1] 武汉大学水资源与水电工程科学国家重点实验室
[2] 长沙理工大学水利工程学院
基金
湖南省自然科学基金;
关键词
土壤健康; 土壤健康指标; 最小数据集; 评分函数; 土壤健康评价;
D O I
10.19336/j.cnki.trtb.2014.06.002
中图分类号
S158 [土壤肥力(土壤肥沃性)];
学科分类号
0903 ; 090301 ;
摘要
土壤健康是土壤质量的可变部分,受人类利用和管理土壤方式的影响明显。因此,掌握农田土壤健康状况,对改进农田管理方式、提高农作物产量和质量具有重要意义。康奈尔土壤健康评价系统通过研究土壤健康指标,科学全面的评价农田土壤的健康状况。该系统从39个备选的土壤健康指标中选取物理指标、生物指标和化学指标各4个,作为描述土壤健康特征的量化指标;在采样分析获得各指标的指标值后,通过土壤健康评分函数,将测得的指标值转换为对应指标的分值,并在此基础上计算出土壤健康总分,用以定量评价农田土壤的综合健康状况。该测试系统面向农民、为农民服务,操作简单、易于理解,对我国开展农田土壤健康管理和评价工作具有参考价值。
引用
收藏
页码:1289 / 1296
页数:8
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