Based on the principle of soil water balance, including precipitation, temperature and other observations, this article built a model of soil drought index.
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。
It includes the chemical thermodynamic balance system of REEs, soil water physical characters and REEs flux in soil profile.
模型包括土壤中稀土化学热力学平衡体系、土壤水分物理形状和土壤剖面的稀土通量。
Soil water balance models are especially important in the prediction of flood runoff, calculation of soil moisture content, design and management of irrigation and simulation of climate impact.
土壤水分平衡模型在洪水预测、土壤湿度计算、灌溉设计管理以及全球气候变化影响的仿真分析上十分重要。
The characteristics of soil water distribution and soil water balance of winter wheat were analyzed under sprinkler irrigation, with surface irrigation (border irrigation) as the control treatment.
以传统地面灌溉(畦灌)为对照，分析了喷灌条件下，冬小麦农田土壤水分分布特征和水量平衡。
The monthly water balance model for calculating runoff on loess plateau has been used in analyzing the benefits of water reduction by soil and water conservation.
借助适合于黄土高原降雨- 产流特性的月水量平衡改进模型，计算天然状态下降雨应有的产流量与同期实测径流量求得减水效果。
The saturated hydraulic conductivity of undisturbed soil can represent the really case in the field and is significant to study soil moisture balance and soil water conservation.
原状土的饱和导水率能反映田间的实际情况，对研究土壤水分平衡和水土保持有极其重要的意义。
Actual evapotranspiration is a significant variable in the water balance calculation. It links daily rainfall, irrigation amount and soil bypass flow to calculate an immobile water deficit.
实际作物腾发量是水平衡模型计算的一个重要变量，它和每日降雨量，灌溉量及土壤径流量共同计算静止水的亏缺量。
This paper presents a remote sensing approach for wheat drought monitoring and modeling, which based on the principles of soil water balance and energy balance.
本研究依据土壤水量平衡及能量平衡的原理，提出了一套利用遥感方法监测冬小麦干旱及建模的方法。
The study, based on the system of dynamics theory and SD model, simulated the balance between the water and soil of Ejina Oasis.
本文以系统动力学理论为基础，采用SD系统动力学模型，对额济纳绿洲水土资源平衡进行模拟研究。
Rainfall-runoff simulation is the very important technique for soil erosion, non-point source pollution, surface water balance calculation and some other study fields.
降雨径流模拟是土壤侵蚀、非点源污染、地表水量平衡计算等众多研究领域的非常重要的技术手段。
In soil-plant-atmosphere system, soil available water content, crop water consumption, and effective precipitation are the main factors in water balance equation of farmland.
在土壤-植物-大气系统中，土壤有效水分贮存量、作物耗水量和有效降水量是农田水分平衡的主要组成因子。
Soil evaporation is an important proportion of energy and water balance of soil surface.
土壤蒸发是地表能量与水分平衡的重要组成部分。
Soil evaporation and moisture and heat transport are important constitutes of energy and water balance of soil surface.
土壤蒸发与水热传输是地表能量与水分平衡的重要组成部分。
ISAREG is an irrigation scheduling simulation model based on the concept of crop water requirements and soil water balance.
从作物需水量的基本概念出发，以水量平衡原理为基础，建立了模拟农田根层土壤水循环的计算机模型- IS AREG。
This paper introduces the theory of jacking pipe technology with balance of soil and water.
文章对泥水平衡法顶管施工工艺中应该注意的几个问题作了主要阐述。
Because soil water is a crucial part of water balance and water cycle at a river basin scale, it should be a significant component of integrated water resources management.
流域尺度土壤水评价和预测是流域水平衡和水循环的重要组成部分，也是流域水资源综合管理的主要内容。
Because soil water is a crucial part of water balance and water cycle at a river basin scale, it should be a significant component of integrated water resources management.
流域尺度土壤水评价和预测是流域水平衡和水循环的重要组成部分，也是流域水资源综合管理的主要内容。
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