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| 农业地质地球化学评价的理论与方法初探 | |
| 引用本文： | 李瑞敏,侯春堂,刘永生,王轶,李浩.农业地质地球化学评价的理论与方法初探[J].地质科技情报,2005,24(4):83-86. |
| 作者姓名： | 李瑞敏 侯春堂 刘永生 王轶 李浩 |
| 作者单位： | 1. 中国地质大学研究生院,武汉,430074;中国地质环境监测院,北京,100081 2. 中国地质环境监测院,北京,100081 3. 中国地质大学研究生院,武汉,430074 |
| 基金项目： | 中国科学院资助项目，中国地质调查局勘测项目，中国地质调查局勘测项目 |
| 摘 要： | 针对农业地质环境调查发现的重金属高值区带和土地生态安全问题,建立了农业地质地球化学评价方法.该方法以元素地球化学循环和元素生物循环为理论依据,在已有研究成果和调查数据基础上,针对自然状态下农作物籽实中重金属元素与其在土壤中的质量分数间的复杂相应关系,建立了土壤-籽实响应关系模型,进而以镉为例,利用该模型并根据国家食品中镉限量卫生标准计算确定评价标准值,并据此将土地划分为安全土地、基本安全土地、警戒土地和危险土地4级,从而实现了利用土壤地球化学调查数据进行土地生态安全性评价的方法探索. |
| 关 键 词： | 评价方法 响应关系模型 农业地质环境调查 |
| 文章编号： | 1000-7849(2005)04-0083-04 |
| 收稿时间： | 2005-06-13 |
| 修稿时间： | 2005年6月13日 |
Preliminary Study on Theory and Method of Geochemistry Evaluation of Agro-geology |
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| LI Rui-min,HOU Chun-tang,LIU Yong-sheng,WANG Yi,LI Hao.Preliminary Study on Theory and Method of Geochemistry Evaluation of Agro-geology[J].Geological Science and Technology Information,2005,24(4):83-86. | |
| Authors: | LI Rui-min HOU Chun-tang LIU Yong-sheng WANG Yi LI Hao |
| Institution: | 1. Graduate School, China University of Geosciences, Wuhan 430074, China ; 2. China Institute of Geo-environment Monitoring , Beij ing 100081, China |
| Abstract: | High value zones of heavy metal and land ecological safety are found in the agro-geological environmental survey. Based on this survey,this paper puts forward an agro-geological geochemistry evaluation method. On the theoretical basis of the geochemical and biological circles of elements, a response relation model is formed from the existing research and investigating data,focusing on the soil-rice relationship in elements'content complex in nature. Taking Cd as a case, this paper illustrates the model-based determination of the evaluation criteria from the Chinese food hygiene standard of the limitation of Cd content in the rice. According to the evaluation criteria,four classes of land are defined. Therefore,land ecological safety estimation is achieved based on the agro-geological environmental survey. |
| Keywords: | evaluation method response relation model agro-geological environmental survey |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |