以我国水资源较为短缺的河南省开封市为例, 对该地区水资源利用趋势进行预测研究。从开封市各行业 用水特性出发, 以水资源预测理论为基础, 建立各用水行业用水趋势模型, 对开封市不同水平年来水及各行业用 水情况进行了科学的预测和水量供需平衡分析, 揭示了实行全社会节水的必要性。

蓄滞洪区的利用是一种重要的防洪措施。但是随着三峡水库等水利工程的建成，分蓄洪区的启用几率减小；同时随着分蓄洪区社会经济的发展，分蓄洪区的启用越来越难。本文以洞庭湖蓄滞洪区和东西湖蓄滞洪区为例，从经济损失方面来论述蓄滞洪区的定位问题，并结合国内外关于蓄滞洪区的利用现状对不同类型的蓄滞洪区的合理利用进行讨论。最后，根据我国经济建设和防洪安全需要，对我国蓄滞洪区的划定和建设问题提出了几点建议。

本文根据农业流域暴雨径流的特点，对地表径流与地下径流进行分割，并对不同 土地利用条件下的地表径流特性进行了深入研究。本文的土地利用方式分别包括森林、水 田和旱地。研究的结果表明：农业流域的暴雨径流特性随着土地利用方式的改变而变化。 相对于水田和旱地，森林流域的滞蓄能力较强，渗透系数较大，可以较大程度地削减洪峰 流量和洪量，较好地起到涵养水分、保护下游河道安全的作用。

长江与洞庭湖在地理和水文要素上联系紧密。三峡工程建成后，洞庭湖水位、含沙量和水质都将受到影响，主要表现在洞庭湖径流的年内分配比原来更加均匀，湖内泥沙淤积放缓,水质有所改善, 枯水期污染物浓度有所降低等。为了更好地发挥三峡水库的作用，改善江湖关系，本文在分析基础上提出了一些建议。

In this paper, a novel and efficient study on the hydrological processes of storm runoff from catchments of different land uses is conducted. The motivation is to precisely simulate the hydrological processes of storm runoff in the agricultural catchments with different patterns of land uses, i.e., forest, paddy, and upland, respectively. As it is discussed in this paper, different land use leads to different characteristics of storm runoff. In order to understand the changes in the hydrological processes of storm runoff from catchments of different land uses, the effects of rainfall intensity, initial soil moisture deficit, evapotranspiration rate, percolation rate, and retention capacity on hydrological processes of the catchments are taken into consideration. According to the principle of water balance, a general model to connect the separate hydrological processes is developed; then, the individual hydrological process is studied in detail: Firstly, the daily evaporation is calculated according to the relation between the actual evapotranspiration and the potential evapotranspiration rate; Secondly, the retention of storm runoff is plotted against the total rainfall, and the maximum storage is calculated; Thirdly, the percolation rate is calculated for each catchment.