最后，还补充阐述了水文干旱、降水资源化利用的意义。
At last, the significance of hydrological drought and treatment of precipitation as a resource were expounded additionally.
通过水文干旱识别和枯水期径流量预估，建立了供水系统水文干旱的预测模型。
Based on the recognition of hydrological drought and the runoff forecasting during the drought period, a forecasting model of hydrological drought is established.
水资源的开发利用、水土保持以及土地利用等人类活动使得西北地区水文干旱进一步加剧。
Human activities, including the utilization of water resources, the water and soil conservation, and land use, all contribute to the hydrologic drought of northwest China.
盐湖和其他干旱水文因素是全球范围内最普通的沙尘暴源。
Salt pans and other dry water features are among the most common sources of dust in the world.
自然灾害是指大气、地质或水文等因素造成的灾变，包括地震、火山爆发、泥石流、海啸、洪水和干旱等。
Natural disasters are catastrophic events with atmospheric, geologic, and hydrologic origins. Disasters include earthquakes, volcanic eruptions, landslides, tsunamis, floods, and drought.
水文学家担心，干旱的严重程度会促使农民建造更多的水坝。
Hydrologists fear that the severity of the drought has encouraged farmers to build more DAMS.
本文在前人研究基础上，总结了中国西北部干旱半干旱地区的水文特性，降水及径流的时空分布规律。
This paper summarized hydrological characters, distribution of precipitation and runoff in arid and semiarid regions in the northwest of China on the basis of the previous researches.
文章通过利用灰色理论预测柳河水系的干旱年，阐述了灰色理论预测随机水文要素的基本方法。
The paper forecasts the drought year of Liuhe river water system by the grey theory, and expatiates the basic method to forecast the stochastic hydrological elements by the theory.
从土壤水分平衡原理出发，以降水量、温度和区域水文观测等因子为基础，建立了土壤干旱指数模型。
Based on the principle of soil water balance, including precipitation, temperature and other observations, this article built a model of soil drought index.
以荒山为对照，对辽西半干旱低山丘陵区人工林地表层土壤水文效应进行了初步研究。
In comparison with barren slope, a pilot study of hydrology effect of artificial woodland surface soil in semi-arid low mountainous upland region of western Liaoning province was carried out.
针对干旱地区平原绿洲水土资源利用的特点，建立了以农区土壤水为中心的干旱区平原绿洲散耗型水文模型。
According to the characteristics of the water and land resources utilization of arid plain oasis, a hydrological model based on agriculture area soil water movement is established.
本文综合分析了半干旱的吉林西部地区水文地质环境与土地盐碱化的关系。
This paper is based on comprehensive analysis of hydrogeologic environment to discuss the relations between water resource and land salinization in semiarid region.
根据HBV水文模型的基本原理，建立了西北干旱区内陆河出山径流概念性水文模型。
Based on the basic principle of the HBV conceptual hydrological model, a hydrological model of the mountainous watersheds in the arid inland area of northwest China was developed by the authors.
利用生态学原理对灌木林的土壤物理性状、水文效益、抗旱性能进行分析研究，得出在干旱瘠薄山地灌木资源的扩大利用有广阔的前景。
The principles of ecology are used to analyse physical properties of soils in shrub forests, hydrolic benefits and drought resistances thereby to conclude…
将模型应用于威海市节水灌溉示范区，得出其平水年（50％）、一般干旱年（75％）两种水文年型的水资源联合调配方案。
The coupled model is applied in water saving irrigation region, Weihai city, Shandong province. The irrigation region optimal operation schemes of normal (50%)and dry(75%) years are computed.
由于干旱地区气候干燥、降水稀少、蒸发强烈，使得水文过程呈现出非常复杂的变化过程，水文时间序列表现出高度的非线性和不确定性。
In this region, dry climate, rare rain and strong evaporation make hydrological process show very complex change process, hydrological time series present highly nonlinear and uncertainty.
自然灾害源于大气、地理或者水文的灾变，包括地震、火山爆发、泥石流、海啸、洪水和干旱等。
Natural disasters are catastrophic events with atmospheric, geologic, and hydrologic origins. Disasters include earthquakes, volcanic eruptions, landslides, tsunamis, floods, and drought.
自然灾害源于大气、地理或者水文的灾变，包括地震、火山爆发、泥石流、海啸、洪水和干旱等。
Natural disasters are catastrophic events with atmospheric, geologic, and hydrologic origins. Disasters include earthquakes, volcanic eruptions, landslides, tsunamis, floods, and drought.
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