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Abstract: This paper reviewed the main achievements of hydrogeological survey in China, summarized the significant progress of hydrogeological survey over the past decade, and forecasted the key responsibilities for hydrogeological survey in the p14th Five-year Planq. The significant progress includes: China established the 1: 50 000 standard hydrogeological survey system with Chinese characteristics and produced the new generation of high-quality hydrogeological maps; the national groundwater monitoring project was completed and accepted, which marks China taking the leading position in groundwater monitoring internationally; fruitful results were achieved in the national groundwater quality survey, and groundwater quality background values were basically identified and checked; hydrogeological and environmental geological survey was continuously promoted in karst areas and the ecological restoration of rocky desertification achieved remarkable results; China strengthened layer exploration techniques for groundwater, integrating the key and practical techniques of layer exploration and monitoring; the exploration of groundwater in the poverty-stricken regions and old revolutionary base areas were effectively promoted to strongly guarantee the poverty alleviation and drinking water safety; the mystery of desert groundwater was uncovered, making up for the shortage of 1: 250 000 hydrogeological survey in the Badain Jaran Desert; and more efforts were made to conduct survey on the water resources in the basin, and to finish the unified measurement of national-scale groundwater level.
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Table 1. Density of groundwater monitoring sites in key areas
No. Name of key area Monitoring area (10 000 km2) Sites of ministry of natural resources (amount) Sites of ministry of water resources (amount) Total amounts of sites Site density (amount/ 1 000 km2) 1 Northeast Plain 40.33 1 060 1 343 2 403 6.0 2 Huang-Huai-Hai Plain 47.14 2 484 3 510 5 994 12.7 3 Fenwei Basin 14.53 586 792 1 378 9.5 4 Ordos Basin 21.54 734 461 1 195 5.5 5 Hexi Corridor 16.97 267 229 496 2.9 6 Source Region of the Yellow River River 6.57 215 62 277 4.2 7 Qaidam Basin 12.04 91 73 164 1.4 8 Tarim Basin 16.44 82 140 222 1.4 9 Junggar Basin 20.96 177 243 420 2.0 10 Sichuan Basin 18.95 293 192 485 2.6 11 Karst Region in Southwest China 54.49 743 287 1 030 1.9 12 Middle Yalung Zangbo River Basin of Tibet 14.07 109 48 157 1.1 13 Yangtze River Delta 5.31 450 363 813 15.3 14 Jianghan-Dongting-Lake Plain 14.86 333 283 616 4.1 15 Poyang Lake Plain 7.66 168 72 240 3.1 16 Southeast Coast and Pearl River 40.49 847 309 1 156 2.9 17 Mountain and Hilly Areas 1 532 1 891 3 423 18 In total 352.35 10 171 10 298 20 469 5.8 Table 2. Patent list of layer exploration techniques for groundwater
No. Patent name Type Patent number 1 A kind of twin packer layering water plug Utility Model ZL 201721742572. 2 2 A kind of cross cable cross gas pipeline packer Utility Model ZL 201820351644. 9 3 A kind of cross cable cross gas pipeline centering type packer Utility Model ZL 201820351645. 3 4 Separate zone stimulation system in a kind of underground water multilayer monitoring well Utility Model ZL 201820755953. 2 5 Twin packer delamination pour slurry anti-priming Utility Model ZL 201821509734. 2 -
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