长江经济带资源环境条件与重大地质问题

Research on conditions of resources and environment and major geological problems in the Yangtze River Economic Zone

本文系统梳理了长江经济带以往地质研究成果,对长江经济带资源环境条件和国土规划建设中应关注的重大地质问题进行了研究。研究结果表明,长江经济带耕地、页岩气、地热、锂等资源条件优越,0.3亿hm2无重金属污染耕地集中分布,拥有3个国家级页岩气勘查开发基地,探明储量5441亿m3,每年地热可利用量折合标准煤2.4亿t,相当于2014年燃煤量的19%,发现亚洲最大的能源金属锂矿床,资源环境条件有利于发展现代农业、清洁能源产业和战略新兴产业;长江经济带部分地区存在活动断裂、岩溶塌陷、地面沉降、滑坡崩塌泥石流等重大地质问题,影响过江通道、高速铁路、城市群和绿色生态廊道规划建设,应予以关注,本文提出了相关建议和对策,同时,提出了下一步支撑服务长江经济带发展地质工作设想。

The previous geological research work in the Yangtze River Economic Zone is systematically summed up and arranged in this paper.Resources and environment conditions and major geological problems which have aroused much attention in the construction and the territorial planning in the Yangtze River Economic Zone are studied.The research results show that the resource conditions of cultivated land,shale gas,geothermal resources,llithium etc.are very favorable in the Yangtze River Economic Zone:30million hm2farmlands without heavy metal pollution exhibit concentrated distribution;there are three national shale gas exploration and development bases with explored reserves of544.1billion cubic meters;available geothermal resources amount to240million tons of standard coal per year,equivalent to19%of the amount of coal consumption in2014;the largest energy lithium metal ore deposit in Asia was found;resources and environment conditions are favorable for the development of modern agriculture industry,clean energy and strategic emerging industries.Nevertheless,in some parts of the Yangtze River Economic Zone,there exist some major geological problems such as active faults,karst collapse,ground subsidence,and landslide-collapse-debris flow,which affect the river-crossing channels,high-speed railway,urban groups and green ecological corridor planning and construction.The authors point out that these problems deserve much attention.For this,the relevant suggestions and countermeasures are put forward.At the same time,the paper puts forward the idea of further supporting the development of the Yangtze River Economic Zone.