| 1. | Risk analysis for sustainable development and utilization of regional groundwater
区域地下水持续开发利用的风险分析研究 |
| 2. | Simulation of groundwater level distribution in a large area using digital elevation model as auxiliary information
作为辅助信息推定大区域地下水初始流场 |
| 3. | Application of matter element model to evaluating on of resources carrying capacity of regional groundwater
物元模型在区域地下水资源承载力综合评价中的应用 |
| 4. | An inverse problem method is employed to determine the average magnitude of acid pollutants in groundwater in fengshui , zibo , shandong
摘要应用反问题方法探讨山东淄博市张店区沣水南部区域地下水中硫酸盐的年入渗强度的数值反演问题。 |
| 5. | The environmental geological problems existing in the west liaohe plain involve desertification of land , salinization of soil , declining of groundwater level and pollution of groundwater
摘要西辽河平原的环境地质问题主要表现为土地沙漠化、土壤盐渍化、区域地下水位元下降及地下水污染等。 |
| 6. | Because of regional underground water level continual dropping and climate changing to aridity , land desertifacation and degeneration of glassland and tundra will tend to worse in short period
由于区域地下水位的持续下降和气候向干旱化发展，土地沙化、草场退化及多年冻土退化短期内将趋于恶化。 |
| 7. | This study used water samples taken from fon - lin region in hualien river basin and analyzed their hydrogen and oxygen isotopes to investigate the possible sources and evolution processes of groundwater and river water flow
摘要本研究利用氢、氧同位素针对花莲溪上游凤林开发区地下水及地表水水文特性进行分析，判断该区域地下水的补注源及地表与地下水间的相互关系。 |
| 8. | The development of a model sub - system for model decision - making affiliated to groundwater table forecast ing sys t em for irrigation districts based on data management information system and offi ce sub - system which provides output of data and results are introduced
区域地下水动态预报软件在数据管理信息系统的基础上增加模型库系统，进行模型辅助决策，并设计了用于资料和结果输出的办公子系统。 |
| 9. | Basing on the above viewpoints , this paper aims at affection that groundwater ' s chemistry component change having on fine - grained soil structures strength , and analyses the connection and cementation between soil granules proceeding with water chemistry function
基于上述观点，本文针对研究因城市建设导致的地下水化学组份变化对粘性土结构强度影响及作用方式的变化，以城市区域地下水的化学作用入手，剖析土颗粒间的连接作用及胶结物作用。 |
| 10. | The main conclusions are as follows : through the different structure and algorithm application of bp model in the predication of regional groundwater hydrology , the hidden layers number , learning rates , neuron number of hidden layer and training errors of bp model and accelerated bp algorithm which influence the convergence effects and test results of model are compared each other . some application technology related parameters of bp structure design are put forward
论文取得了以下主要成果：通过不同bp网络结构和算法在区域地下水文预测中的实例研究，重点比较了不同层次结构、隐层单元数、学习速率、训练收敛误差等4个基本要素及不同算法、不同样本容量等对模型收敛效果、模拟、检验与预报结果的具体影响。 |
