地域生态环境保护与城市规划布局中的地下水资源评价——以鄂西岗地董市幅1:50000水文地质图数据集为例

Groundwater Resource Assessment for Regional Ecoenvironmental Protection and Urban Planning and Layout--A Case Study of the Hydrogeological Dataset of the 1:50000 Dongshi Map Sheet in the Downland,Western Hubei

鄂西岗地1:50000水文地质图数据集是在董市幅实施水文地质测绘、地球物理勘探、遥感地质解译、水文地质钻探、水样品采集测试及地下水位监测与统测等工作基础上完成原始数据采集,综合前期收集资料的整理分析与最新采集数据集成编制而成。原始数据采集主要包括遥感地质解译面积450 km^2,机(民)调查点226个,地质调查点125个,环境地质调查点16个,水文地质钻探孔12眼,工程地质钻探孔8眼,水样品(全分析、同位素及有机污染样)合计采集80组,丰、枯水期地下水位统测各40点次,以及机(民)井监测12点位(一个水文年监测)等,数据采集严格遵守《水文地质调查规范》(DZ/T 0282-2015)、《水文水井地质钻探规程》(DZ/T 0148-2014)等规范与技术要求组织实施,保证数据的准确可靠。数据集采用MapGIS 6.7平台辅助制图,坐标系为1984年西安坐标系,投影方式为高斯-克吕格投影(6度带)。水文地质图编制是以地下水系统理论为指导,充分展现关键水文地质信息与地下水资源现状条件,为区域地下水资源开发利用远景规划与有效保护提供直接依据,能够促进长江中游生态文明建设与长江中游经济带快速发展。

The dataset of the hydrogeological map at a scale of 1:50000,of the downland in West Hubei was developed based on the organization and analysis of pre-existing data and the integration of the latest original data obtained from a practical field survey in the Dongshi Map Sheet area,such as hydrogeological mapping,geophysical prospecting,hydrogeological drilling,collecting and testing of water samples and monitoring and simultaneous measurement of groundwater level.The original data involved remote-sensing geological interpretation of an area of 450 km^2,226 pumping(domestic)wells,125 points of geological survey,16 points of environmental geological survey,12 boreholes of hydrogeological prospecting,8 boreholes of engineering geological survey,80 water samples(for total chemical,isotopic and organic pollution analysis),40 discrete point-times of simultaneous measurement of groundwater levels during the wet and dry seasons and 12 point-locations of pumping(domestic)wells(for monitoring during an entire hydrological year).The original data were acquired in strict accordance with DZ/T 0282–2015 Specification for Hydrogeological Survey(1:50000),DZ/T 0148–2014 The Specification for Hydrogeological Well Drilling and other technical requirements in order to ensure the accuracy and credibility of the data.The software MapGIS6.7 was used to prepare the maps in the dataset,adopting the 1984 Xi’an Coordinate System and the Gauss-Kruger projection(6-degree zone).With the theory on groundwater system as a mapping guidance,the hydrogeological map in the dataset can fully reflect the key hydrogeological information and current conditions of groundwater resources,providing a direct basis for long-term planning of the development,utilization and effective protection of regional groundwater resources.Therefore,the dataset will promote the ecological civilization construction and repaid development of the economic belt along the middle reaches of the Yangtze River.