天然富硒土壤成因分类研究及开发适宜性评价  

Assessment of genetic classification and development suitability of natural selenium-rich soil

作　　者：刘道荣 焦森 LIU Dao-Rong;JIAO Sen(Zhejiang Geological Prospecting Institute,China Chemical Geology and Mine Bureau,Hangzhou 310002,China;China Chemical Geology and Mine Bureau,Beijing 100013,China)

机构地区：[1]中化地质矿山总局浙江地质勘查院,浙江杭州310002 [2]中化地质矿山总局,北京100013

出　　处：《物探与化探》2021年第5期1157-1163,共7页Geophysical and Geochemical Exploration

基　　金：中化地质矿山总局化工地质勘查专项资金项目(201905)。

摘　　要：天然富硒土壤的形成常受控于成土母质,空间上与黑色岩系、含煤岩系、炭质泥(页)岩、泥质灰岩、火山岩等富硒岩石分布区密切相关。不同成因类型的富硒土壤开发适宜性差异较大,但目前尚无天然富硒土壤系统的成因分类方案。本文通过整理我国主要天然富硒土壤成因,按土壤硒来源的主要控制因素——成土母质,在现有分类方案基础上,将天然富硒土壤成因归纳为3个大类、10个亚类。对黑色岩系型、含煤岩系型、火山岩型、浅变质岩型等4种重要亚类的富硒土壤主要特征及开发适宜性进行概略评述,并据此提出天然富硒土壤开发适宜性评价指标。The formation of natural selenium-rich soiltends to be controlled by the parent materials.Spatially,it is closely related to the distribution areas of selenium-rich rocks such as black rock series,coal-bearing rock series,carbonaceous mudstones(shales),argillaceous limestones,and volcanic rocks.Selenium-rich soil of different genetic types greatly differs in development suitability.However,agenetic classification scheme of natural selenium-rich soil is yet to be developed.This paper sorted out the genesis of natural selenium-rich soil and divided it into three categories and 10 subclasses according to the major controlling factor of selenium source in soil(parent materials)based on existing classification schemes.Then it briefly reviewed the primary characteristics and development suitability of selenium-rich soils of four major subclasses,i.e.,black rock series,coal-bearing rock series,volcanic rocks,and epimetamorphic rocks.Based on this,this study proposed assessment indices of the development suitability of natural selenium-rich soil.

关 键 词：天然富硒土壤 成土母质 成因分类 开发适宜性 

分 类 号：X142[环境科学与工程—环境科学] P632[天文地球—地质矿产勘探]