It determines altogether 14 assessment factors in 3 categories of tectonic structure,embankment foundation,geology and geomorphy of the river channel,builds a fuzzy assessment model,conducts integrated assessment on the stability of the elevated Yellow River in Shandong section by selecting 96 points of fuzzy calculation and assessment and zones the stability of the elevated river according to the factors that influence to the stability of the elevated river.It preliminarily determines 10 vulnerable sections for special defense through analysis and prediction on unstable or critical spots for dike breaks that possibly happened and possibly caused damages at each section.

This paper analyzes geological conditions of geothermal reservoirs in the Neogene Guantao Formation, Paleogene Dongying Formation and Cambrian-Ordovician of Lower Paleozoic, and suggests that they are of great value to develop geotherm, especially in the Neogene Guantao Formation geothermal reservoirs. Based on the geological structure, type of geothermal reservoirs and grades of geothermal gradient, and the principle of prior-exploitation, junior-exploitation, common-exploitation and prospect exploitation, the geothermal reservoirscan be divided into 6 geothermal areas and 16 sub-areas.

Major geological reservoirs in urban areas of Binzhou city occur in Neogene Guantao formation and Paleogene Dongying formation under the ground of 1000~1600m.It belongs to fragemental crack type geothermal.Thermal reservoirs are composed of sandstone and conglomerate with the depth of 140~250m.Hydrochemical type is Cl-Na,and the temperature of the mouth of the well is 60~65℃,which belongs to middle temperature type geothermal resource.Many useful elements are included in thermal water.Its permitted exploitation yield is 2556×10-6m3/a,and present yield is 109.5×10-6m3/a.Thus,it is proved that It has great exploitation potentiality and bright future.

Due to long-time exploitation of deep underground water in Decheng district of Dezhou city, large square of funnels have been formed, and surface collaspe have been formed as well. In order to protect geological environment and deep underground water resource in Dezhou city, artificial recharge experiment of deep underground water was carried out in 2002. Achievements of artificial recharge experiment is introduced in this paper, possibility, social and economic, environment efficacy have been analysed as well.

Geothermal resource in Dezhou city belongs to low-temperature type, wihich mainly occurs in cracks of Neogene and Paleogene sandstone. Geotherm in Dezhou city was explored and utilized in 1997, which develped very rapidly. Thus, its exploitation and protection have become an important subject in geological environment protection. According to geological condition and present exploitation and utilization condition of geothermal resource in Dezhou city, geological environment efficacy is analysed in this paper. On these basis, some suggestions are put forward as follows: resource and environment should be protected, exploitation and management of geothermal resource should be strengthened, development equipment should be renewed, artificial recharge experiment should be carried out and monitoring system and scientific system of geotherm utilization, exploitation and management should be established, etc.

Based on the hydrogeological survey in the downstream of the Yellow River,this paper reevaluates the shallow groundwater resource amount and its potential by the new data and comparative methods.It also analyzes the reason of shallow groundwater resource change in recent years and the regulation and storage capacity of groundwater reservoir in this area which is lack of groundwater potential.It is concluded that the groundwater recharge of this region has changed in the late 20 years due to the zero-flow period of the Yellow River and climate change,and the groundwater is in imbalance.Compared with the one in 1980s,the exploitation of shallow groundwater has reduced by nearly 10~9 m~3/a and its potential has decreased by about 3×10~9 m~3/a.Some advices about reasonable utilization of groundwater resource to ensure the sustainable development of economy are proposed as well.

本文在重新汇总黄河流域地下水资源量的基础上,提供黄河流域天然补给资源总量为453.54亿m3/a,其中淡水为403.51亿m3/a,微咸水补给约50.03亿m3/a.可开采资源总量为212.24亿m3/a,其中淡水为182.42亿m3/a,微咸水约29.82亿m3/a.总结分析了黄河流域主要环境地质问题的发展趋势,提出了水资源利用方面的一系列宏观对策建议.