摘要
根据А．П．维诺格拉多夫的动植物体化学组成分类方法，对辽宁省４５种农作物及其立地土壤中的５２种化学元素进行了定量分析测试后，采用双指标法将元素的含量与生物吸收系数各分成三个数值段，从而将辽宁主要农作物化学元素划分成最富集元素、富集元素、贫乏元素及最贫乏元素４种类型，并作出农作物化学元素分类表，然后再将其转变成农作物生物地球化学分类表。表中列出了５２种化学元素在各种农作物中的含量及其生物吸收系数组合，并由此将辽宁主要农作物分为元素最富集作物、元素富集作物、元素贫乏作物和元素最贫乏作物四类。根据农作物的生物地球化学分类，人们可以科学地调整农业种植结构，可以均衡人体营养结构。它不仅可以为环境质量监测提供指示植物标志而且对植物地球化学探矿也具有重要的参考价值。
According to A. P. Vinogradov's viewpoint on the classification of chemical composition in animals and plants, 52 kinds of chemical elements in 45 major crops in Liaoning province and in the soils where these crops were planted had been quantitatively analyzed. Contents of elements and biologic absorption coefficient both were divided into 3 numerical sections. By double index method, the chemical elements in the major crops in Liaoning were divided into 4 enrichment types: the most enriched, enriched, impoverished and the most impoverished elements. Then the enrichment classification table of the chemical elements in the major crops in Liaoing was changed into biogeochemical classification table. In the biogeochemical classification table, there were listed contents of 52 kinds of elements in various crops and their bbiological absorption coefficient association. The major crops in Liaoning could be divided into the most enriched element, enriched element, impoverished element and the most impoverished element crops. The biogeochemical classification of crops contributes to macroscopic and scientific adjusting the planting structure of agriculture and nutrient structure of human body. It has important reference values in monitoring environment and in plant geochemical exploration.
出处
《辽宁地质》
1998年第3期223-234,共12页
基金
地质矿产部"八五"农业地质项目
辽宁省科学技术委员会"八五"农业地质项目
关键词
辽宁
农作物
生物地球化学
分类
Liaoning, Crops, Biogeochemistry, Classification
