潜水蒸发
- 网络phreatic evaporation;groundwater evaporation
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计算潜水蒸发系数的反Logistic公式
Inverse-Logistic Formula for Calculation of Phreatic Evaporation Coefficient
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结果表明:由于土表盐壳形成后对水分蒸发的抑制,不同大气蒸发能力条件下地下水埋深为50cm时,随蒸发历时的延长,潜水蒸发由稳定变为非稳定状态。
The results show that the steady state phreatic evaporation changes into non-steady state with the increase of evaporation time at 50 cm depth of groundwater table owing to the effect of salt crust on the water movement .
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在干旱少雨(年降雨量小于100mm)的环境中,来自河川补给的潜水蒸发,成为植被水分最主要来源,对植被生态系统起决定性的作用。
In the arid and rainless environment ( yearly precipitation less than 100mm ), the groundwater evaporation from river runoff supply is vitally useful for vegetation ecosystem , for it is the main source of vegetation water demand .
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层位为35cm时砂层对潜水蒸发量和土壤表层返盐的抑制率可达70%~80%左右。
The controlled amount for the sand layer against the water and salt transport was 70 % ~ 80 % when the distance was more than 35 cm .
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冻结期与融解期潜水蒸发系数模拟研究
Simulative Study on Groundwater Evaporation Coefficient in Freezing and Thawing Period
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叶尔羌河流域潜水蒸发规律试验分析
Analysis of the phreatic evaporation in Yarkant River basin , Xinjiang
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作物生长条件下潜水蒸发的数值模拟研究
Digital Simulation Study of Phreatic Water Evaporation Under Crops Growing
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辽宁地区潜水蒸发变化规律及观测研究
Study on Phreatic Water Evaporation Change Rules and Observation for Liaoning Area
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潜水蒸发系数的观测实验与分析计算
Observation Experiment and Analysis Calculation on Phreatic Water Evaporation Coefficient
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浅析土壤质地及结构对潜水蒸发的影响
Preliminary Analysis on Effect of Soil Texture and Structure upon Groundwater Evaporation
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潜水蒸发经验公式分段拟合研究
Sectioned Curve Fitting on Empirical Formula for Estimating Phreatic Evaporation
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夹砂层状土壤潜水蒸发特性及计算模型
Characteristics and calculation model of phreatic evaporation of sand-layered soil
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潜水蒸发条件下不同质地剖面的土壤水盐运动
Salt-water dynamics in soil profiles of different texture under groundwater evaporation condition
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辽宁地区潜水蒸发规律研究
Experiment Research on Phreatic Evaporation Rules in Liaoning Province
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潜水蒸发与埋深关系的分析
Analysis of Relations Between Phreatic Water Evaporation and Water Table Dephs Deep Autumn
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原平水源地潜水蒸发规律分析与研究
Study on the Law of Groundwater Evaporation for the Water Resource in Yuanping
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豫东平原潜水蒸发试验研究
Research on the Experiment of Phreatic Water Evaporation on the Eastern Henan Plain
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新疆平原区潜水蒸发研究
Study on Phreatic Evaporation in Xinjiang Plain Area
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有作物条件下潜水蒸发计算方法的实验研究
A Study on the Calculation Method of Evaporation from Groundwater in Seasons of Crops
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不同地下水埋深条件下农田潜水蒸发规律
Law of Groundwater Evaporation in Farmland Under Different Conditions of Buried Depth of Groundwater
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塔里木盆地北东缘潜水蒸发研究
Study of the evaporation of phreatic water in the northeastern margin of Tarim Basin
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淮北平原有无作物生长条件下潜水蒸发规律试验
Experiment on phreatic evaporation of bare soil and soil with crop in Huaibei plain
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土壤质地对潜水蒸发的影响
Study on phreatic evaporation under different soil textures
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用直接估算法确定区域潜水蒸发量
Direct Estimation Method to Determine Regional Phreatic Evaporation
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潜水蒸发的计算问题
The computing problem in phreatic water evaporation
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层状土壤中砂层层位对潜水蒸发的影响
Effect of the sand layer position on the phreatic evaporation in the layered soil profile
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土壤冻结过程中潜水蒸发规律的模拟研究
Simulation on phreatic evaporation during soil freezing
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农田潜水蒸发的变化规律及其计算方法研究
A study on the variation laws of field phreatic water evaporation and its calculation method
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高地下水位条件下盐渍土区潜水蒸发特性及计算方法
Phreatic evaporation characteristics and calculation methods with the shallow water table in the saline soil region
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该实验为定量研究夹砂层状土壤潜水蒸发提供了新思路。
The research supplies a new method for quantitative study of steady phreatic evaporation of sand-layer soil .