Due to massive exploitation of geothermal water in Dezhou city in many years, geothermal water level continued to decline, and formed a geothermal water depression cone centered in Dezhou City. Based on the analysis of water dynamics and geothermal exploitation rate in Guantao geothermal reservoir, the relationship between the amount of geothermal water withdrawed and water dynamics has been verified, and the impact of human activities have been furtherly revealed, and the correlation equation between the amount of geothermal water withdrawed and water dynamics has been set up. Through analysis on the e- quation trend, a warning exploitation rate of geothermal water in Guantao reservoir is put forward. It will provide a rational and scientific basis for the sustainable development and utilization of geothermal resource.

On the basis of collecting and analyzing the newly gained information,major ecological environment problems occurred in the downstream of the Yellow river are introduced in this paper,such as water pollution,water resource deficiency,ground subsidence,ground crack,ground collapse,sand liquefaction,soil salinization and instability of the dyke.Countermeasures for protecting ecological environment problems are put forward as well.It will have a high reference value in national resource exploitation,flood control,disaster protection and prevention,and eco-geological environment protection.

试验将毛竹冬笋分别用保鲜剂蔗糖脂肪酸酯、海藻酸钠、壳聚糖涂被处理 ,并结合保鲜膜、保鲜纸、复合膜包装 ,在 7℃左右的室温下贮藏 .结果表明 ,用 1.5%壳聚糖 +0 .5%苯甲酸钠涂被 ,保鲜纸包装的冬笋 ,可保鲜 30d ,优于其它处理 .