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区域生态地球化学评价核心与对策
引用本文:杨忠芳,奚小环,成杭新,周国华,陈德友,张建新,袁晓军,冯海艳,陈家玮,刘爱华,汤奇峰,余涛.区域生态地球化学评价核心与对策[J].第四纪研究,2005,25(3):275-284.
作者姓名:杨忠芳  奚小环  成杭新  周国华  陈德友  张建新  袁晓军  冯海艳  陈家玮  刘爱华  汤奇峰  余涛
作者单位:1. 中国地质大学地球科学与资源学院,北京,100083
2. 中国地质调查局,北京,100011
3. 中国地质科学院地球物理地球化学勘查研究所,廊坊,065000
4. 四川省地质调查院,成都,610081
5. 湖南省地质研究所,长沙,410008
6. 江苏省地质调查院,南京,210018
基金项目:四川省成都经济区农业生态地球化学评价项目;湖南省洞庭湖农业生态地球化学评价项目;中国农业生态地球化学评价体系研究与成果集成项目;地质调查局地质调查项目
摘    要:生态地球化学是地学与土壤学、农业、环境学和生态学等多学科交叉融合产生的新学科,是地球化学领域新的发展方向。区域生态地球化学评价是在区域地球化学调查基础上,针对影响流域/区带生态系统安全性的元素异常而开展的一项评价和研究工作。多目标区域地球化学调查获得的海量高精度地球化学数据,可为环境质量评价提供背景值、为土地的质量和生态管护提供地球化学依据;调查还发现了一系列影响流域生态安全性的元素异常,针对异常元素分布特征,区域生态地球化学评价将开展异常元素追踪和成因甄别、生态效应评价和生态系统安全性的预警预测等项评价和研究工作。文章论述了区域地球化学调查成果,介绍了区域地球化学评价的思路,阐述了区域生态地球化学评价的主要问题与对策。

关 键 词:区域生态地球化学评价  异常元素追踪  生态效应评价  生态系统安全性的预警预测
文章编号:1001-7410(2005)03-275-10
收稿时间:2005-03-05
修稿时间:2005年3月5日

THE CORE AND COUNTERMEASURES OF REGIONAL ECOLOGICAL GEOCHEMICAL ASSESSMENT
Yang Zhongfang,Xi Xiaohuan,Cheng Hangxin,ZHOU Guohua,CHEN Deyou,Zhang Jianxin,YUAN Xiaojun,Feng Haiyan,CHEN Jiawei,Liu Aihua,Tang Qifeng,Yu Tao.THE CORE AND COUNTERMEASURES OF REGIONAL ECOLOGICAL GEOCHEMICAL ASSESSMENT[J].Quaternary Sciences,2005,25(3):275-284.
Authors:Yang Zhongfang  Xi Xiaohuan  Cheng Hangxin  ZHOU Guohua  CHEN Deyou  Zhang Jianxin  YUAN Xiaojun  Feng Haiyan  CHEN Jiawei  Liu Aihua  Tang Qifeng  Yu Tao
Institution:1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083;
2. China Geological Survey, Beijing 100011;
3. Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000;
4. Sichuan Province Geology Survey Institute, Chengdu 610081;
5. Geological Institute of Hunan, Changsha 410008;
6. Geological Survey of Jiangsu Province, Nanjing 210018
Abstract:Ecological geochemical assessment is not only a new academic subject, but also one of the interdisciplinary approach involving geology, agrology, agriculture, environment science and ecology etc. It is a new developing direction in the area of geochemistry. Based on regional geochemical survey, ecological geochemical assessment was carried out to assess the elementary abnormity which influences the valley/region ecosystem safety. Vast and precise geochemical data obtained by multi-purposes regional geochemical survey can supply the background value for environmental quality assessment, and provide geochemical base for soil quality and ecological management and protection. A series of elementary abnormity influencing ecological safety of drainage basin was also found in this survey. Furthermore, tracing elementary abnormity, discriminating the cause of formation, assessing the ecological efficiency, and forecasting and early warning on ecosystem safety and so on are going to be carried on for regional eco-geochemical assessment aimed at the trait of elementary abnormity distribution. In this paper, the results and conclusions of regional geochemical survey were summarized, and the sketch of regional geochemical assessment was introduced. The main problems and their countermeasures for regional eco-geochemical assessment were also discussed.
Keywords:regional ecological geochemical assessment  elementary abnormity tracing  ecological efficiency assessment  early warning on ecosystem safety
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