植物体内元素吸收积累初步研究  

A STUDY OF TRANSPORTING AND ACCUMULATIVE MECHANISM OF ELEMENTS IN PLANTS

作　　者：孔牧[1,2] 任天祥[1,2] 孔令韶[1,2] 马茂华[1,2] 

机构地区：[1]原地质矿产部物化探研究所 [2]中国科学院植物研究所

出　　处：《物探与化探》1999年第1期33-37,共5页Geophysical and Geochemical Exploration

基　　金：国家自然科学基金;地质行业科学技术发展基金

摘　　要：利用较新的思路，对植物吸收、积累元素规律进行初步研究，结果表明植物对营养元素和有毒元素的吸收、积累方式不同，对营养元素植物是主动吸收并积累在生长代谢最旺盛的器官，对有毒元素和过量营养元素是被动吸收并积累在对其生长影响最小的部位。而且，植物普遍存在抗元素浓集的“生理─生物化学障”，它主要存在于根部。最终建立了植物对元素的吸收积累模式。This paper reports the accumulative mechanism of elements assimilated by plants in the Xiaoxilin Pb-Zn deposit of Heilongjiang and Jiaolongzhang of Gansu. Studies show that there exist marked difference between accumulative mechanism of nutritive elements and that of toxic elements. When the nutritive elements are assimilated by plant, they are accumulated in every organ, and the organs are related to the function of elements in plants.Toxic elements are excluded when they are assimilated by plant they are accumulated in organs, where organ toxic elements exert very little or no poisonous effect upon plants.

关 键 词：植物 元素 吸收积累 铅锌矿床 

分 类 号：P632.4[天文地球—地质矿产勘探] P618.420.8[天文地球—地质学]