内蒙古梯田水土保持效益分摊系数分析

采用产量分解的方法，运用灰色系统中的GM（1．1）模型，对梯田的趋势产量和水保产量进行灰色拼合，确定了我区水平梯田、坡式梯田的水保产量及其效益分摊系数。     

Rainfall variability and its influence on surface flow regimes examples from the central highlands of Ethiopia

The article shows results of an international and interdisciplinary project with the title ‘Rainfall and its Erosivity in Ethiopia’. Rainfall variability affects the water resource management of Ethiopia. The influence of rainfall variability on flow regimes was investigated using five gauging stations with data availability from 1982–1997. It was confirmed that the variability in rainfall has a direct implication for surface runoff. Surface runoff declined at most of the gauging stations investigated. Therefore, effective water resource management is recommended for the study area. Future research should focus on watershed management which includes land-use and land cover. The question posed here is whether the variability in rainfall significantly affected surface flow in the study area.     

水源涵养林的功能和效益综述

水源涵养林通过林冠截留、枯枝落叶层的截持和林地土壤的调节来发挥其水土保持、滞洪蓄洪、调节水源、改善水质、调节气候和保护野生动物的生态服务功能，并通过水利发电、森林游憩和增加就业等来发挥其经济效益和社会效益。     

不同年龄尾巨桉林水源涵养能力比较研究

对广西横县镇龙林场不同年龄尾巨桉（Eucalyptus urophylla×E．grandls）人工林凋落物层和土壤层的水源涵养能力进行比较研究。结果表明：随着尾巨桉林龄增大,地表凋落物总量也逐渐增大,5年生林分地表凋落物量最高;凋落物层最大持水量与凋落物量呈显著正相关（P〈0．05）。表层土壤非毛管孔隙度和非毛管孔隙...     

间歇灌节水高产机理研究

本试验研究采用灌溉──土壤水分──植物系统──小气候系统理论体系，测定间歇灌供水条件下土壤水分入渗特性的变化、作物生育性状和农田小气候相互关系，定量地提出间歇灌节水高产机理在于土壤表面形成了致密层，沟（畦）土壤表面糙率的降低和适时适量地满足作物各生育期的需水要求．     

不同群落类型水源涵养功能研究

通过设置临时标准地，对常绿阔叶林采伐迹地不同群落类型水源涵养功能进行的研究结果表明：米槠单优群落具有较好的水源涵养功能，其林褥层持水量分别是杉木＋杂灌群落和杉木＋芒萁群落的１．７倍和３．５倍，土壤层持水量分别高８．９９％和９．１８％；米槠单优群落生态系统总持水量达３１３８．９ｔ／ｈｍ２分别比杉木上述两人工林群落高９．１８％和９．７０％．常绿阔叶林采伐后营造杉木人工林，由于受火及降雨浸浊影响，林褥层与土壤层持水性能变差，森林水源涵养功能呈下降趋势．