基础地质调查的新任务——关于地质—生态环境调查新概念的探讨

A new task of fundamental geological investigations A discussion of the new concept of geological ecological mapping

提出确定地质环境的自然状态，查明危及生态环境的各类因素，预测未来地质环境的变迁，营造人类最佳生存环境和评价环境效益的地质—生态环境调查的新概念。地质—生态环境调查除完成传统的基础地质调查任务外，还必须评价生态环境，应用当代高精度、数字化、深层次的观察手段，确保填图质量。将全国分为经济区的、营造地质环境的、基础地质调查的和海洋的４类填图区，并以长江经济带的地质—生态环境调查为例。

The author proposes a new concept of geological ecological mapping for determining the natural state of geological environment,ascertaining various factors of endangering ecological environment,predicting the change of future geological environment,constructing the optimal living environment of mankind and evaluating the environmental effectiveness.Besides completing conventional fundamental geological investigation,the task of geological ecological mapping also includes the evaluation of ecological environment.It is necessary to use the current high precision,digitized and deep level observation means for ensuring mapping quality.China may be divided into four mapping categories of mapping areas,i.e:economic,geological environment constructed,fundamental geological survey and sea.Taking for example the geological ecological mapping of the Yangtze River valley economic zone,the target and task of mapping are presented.