农业生态地质环境研究中生物─水文地球化学方法──以华北平原沧州金丝小枣主产区为例  

BIO-HYDROGEOCHEMICAL METHODS IN RESEARCH ON AGROECOLOGICAL GEOLOGICAL ENVIRONMENT ── WITH AN EXAMPLE FROM THE MAIN GROWING AREA OF XIHE JUJUBE IN NORTH CHINA PLAIN

作　　者：李瑞敏[1] 侯春堂[1] 邵时雄[1] 

机构地区：[1]地质矿产部水文地质工程地质研究所

出　　处：《地球科学（中国地质大学学报）》1995年第4期455-458,共4页Earth Science-Journal of China University of Geosciences

基　　金：国家"八五"科技攻关项目;地矿部"八五"农业地质项目

摘　　要：土壤溶液既是养分，又是养分载体，在养分由岩土→水（土壤溶液）→植物体系统中起着中介的作用，本文以金丝小枣所需养分供、输、耗系统为主线，采用生物─水文地球化学方法，通过分析计算输入系数、配比系数、吸收系数等一系列生物─水文地球化学参数，探讨地质环境影响枣林品质的作用机制，即地质环境的农业生态效应机制。Soil solution,not only the nutrient required by plant,but also the carrier of nutrient for the plant,plays the medium agent in the nutrient circulation on"rock (soil)-water(soil solution) -plant" system In this paper,taking the supplying,transporting,consuming system of nutrient required by Xihe Jujube forest as the key link,we probe into the mechanism of geological environment influencing the quality of Xihe Jujube,i.e the mechanism of the efffect of the agroecological geological environment,with bio-hydrogeochemical methods,by means of analyzing and calculation a series of bio-hydrogeochemical coefficients,such as import coefficient,distribution rato,uplake coefficient.

关 键 词：农业生态 地质环境 生物 水文 地球化学 

分 类 号：S15[农业科学—土壤学] S181[农业科学—农业基础科学]