1) disaster water
灾害水量
1.
Based on the different function of a river,this paper discussed that the quantity of river water is divided into three portions such as: ecology water,resource water and disaster water,and took the trunk streams of Shonghua and Nenjiang River as the case,analyzed and calculated the three portions of water,as well as,discussed the change tendency and law of each part water.
根据河流的不同功能,将河流水量分为生态环境水量、资源水量、灾害水量3部分,以松花江嫩江干流为例,对河流3部分水量进行了分析与计算,并探讨了河流各部分水量的变化趋势及规律。
2) flood disaster database
水害灾害库
3) flood disaster
洪水灾害
1.
System theory for risk analysis of flood disaster;
洪水灾害风险分析的系统理论
2.
Studies on abnormal rainstorm flood disasters in Guangxi and prevention measures;
广西异常暴雨洪水灾害研究及防御对策
3.
Features of rainstorm-flood disasters and prevention measures in Gansu;
甘肃省暴雨洪水灾害的特点及防治对策
4) flood disasters
洪水灾害
1.
The circulation and weather situation,water-vapor sources and underlying surface conditions having an effect on Gansu province were analyzed,and types of rainstorms and flood disasters in this area were classified.
分析了影响甘肃省的大气环流形势、天气形势以及水汽来源、下垫面情况;并对全省暴雨和洪水灾害类型进行了分类;探讨了暴雨洪水的时空分布规律;总结了洪水灾害的特点;提出通过工程措施和非工程措施减少洪水灾害的对策。
5) water percolation disaster
透水灾害
6) floods and droughts
水旱灾害
1.
The preliminary study on the floods and droughts in Zhejiang during the reign of Chongzhen;
明末浙江水旱灾害分布规律与成因分析
2.
The constant floods and droughts in the Yangtze and Huaihe river area during the Ming and Qing dynasties had resulted from the combined action of many elements.
明清时期江淮地区水旱灾害的频繁发生是多种复杂因素共同作用的结果。
3.
This article use the Marxist materialist conception of history and probe into the relationship between floods and droughts and agro-farming in Jianghuai of China in Ming and Qing dynasties, with the visual angle of social economic history of calamity.
本文以灾害社会经济史的视角,对明清时期江淮地区的水旱灾害与农业耕作关系作了深入地探讨。
补充资料：饱和持水量测定
饱和持水量测定
measurement of saturation moisture capacity
匕aohe ehishuiliang eeding饱和持水t测定(measurement of satu-ration moisture eaPaeity)土壤农业水文特性测定项目之一，是测定土壤孔隙完全充满水时的l几壤湿度。饱和持水t所占容积等于土壤总孔隙度，可用来鉴定土壤水分饱和程度和总孔隙度。 测定方法是浸水饱和法。即在欲测地段上，用容重环刀取原状土，取土方法与测定卜壤容重时取_L相同(见土壤容l测定)。把装有未遭破坏土样的环刀称重后，使其有孔底一端(内垫滤纸)朝下，放在盛水的平底磁盘中或充满水的砂层上，使盘内水面与环刀上缘保持一样高，切勿使水面淹没环刀，以免影响空气自土壤孔隙排出，使水不能充满孔隙。经过一定时间后(砂土4一8小时，粘土8一12小时)迅速取出，用盒盖托住称重。然后再放入盘中，继续使水充满孔隙，直至前后两次重量无显著差异为止。为了计算环刀中土体的干土重，必须在同一土层上，另取土样，用称重烘干法测其湿度。用下式计算饱和持水量(占干土重的百分数): 环刀中上样吸水饱和*、、、。_后的含水量吧刊’寸小里一环万币王释的不干甭入川U.式中上样干土重(克)=环刀中的湿土重(克)xl()0100十上样湿度的百分数 此外，通过下式也可计算饱和持水量(占干土重的百分数):饱和持水量二总孔隙度 容重火10()%式中总孔隙度二1一宣重比重(林家栋)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条