土壤冻融,soil freezing and thawing
1)soil freezing and thawing土壤冻融
1.Review of the study on land surface process insoil freezing and thawing;土壤冻融条件下的陆面过程研究综述
2.Coupled model of moisture and heat reaction duringsoil freezing and thawing under environmental climate condition环境气候条件下土壤冻融过程中湿热耦合作用模型研究
3.Using the model of simultaneo us moisture and heat transfer duringsoil freezing and thawing, a numerical sumulation is carried out to the whole course of freezing and thawing in Hetao irrigation areas in Inner Mongolia Autonomous Region.应用土壤冻融过程中水热耦合迁移模型，对内蒙古河套灌区地下水浅埋条件下整个土壤冻融过程进行了模拟，分析了越冬期土壤水热迁移规律。
英文短句/例句
1.Soil Temperature Variation in Plough Layer and Soil Freeze-Thaw Characteristics during Seasonal Freezing and Thawing Period季节性冻融期耕作层土壤温度及土壤冻融特性的试验研究
2.Study on Northern Yinshan Shallow Soil Freezing-thawing Feature Experiment;阴山北部浅层土壤冻融特性试验研究
3.Experimental Study on Freeze-thaw Process of Soil after Autumn Irrigation冬灌条件下土壤冻融过程的试验研究
4.Freezing-Thawing Condition of Main Dryland Farming Soil Areas in Northeast China东北主要旱地耕作土壤冻融环境分析
5.THE THAWING-FREEZING PROCESSES AND SOIL MOISTURE DISTRIBUTION OF THE STEPPE IN CENTRAL MONGOLIAN PLATEAU蒙古高原中部草地土壤冻融过程及土壤含水量分布
6.Coupled model of moisture and heat reaction during soil freezing and thawing under environmental climate condition环境气候条件下土壤冻融过程中湿热耦合作用模型研究
7.Progress on N_2O emission from soil in the freeze-thaw process冻融条件下土壤N_2O排放研究进展
8.The Effect of Alternative Freezing and Thawing on Soil Organic Matter and Nitrogen Potassium Nutrition of Black Soil;冻融交替对黑土土壤有机质及氮钾养分的影响
9.Study on Soil Water-Heat-Salt Transfer during Freezing-Thawing and Its Simulation by SHAW Model;冻融土壤水热盐运移规律及其SHAW模型模拟研究
10.A review:Impacts of freeze-thaw circles on soil CO_2 and N_2O emissions冻融交替对土壤CO_2及N_2O释放效应的研究进展
11.Effects of Freezing-thawing on Soil Water-stable Aggregates in Fresh Marsh冻融对沼泽湿地土壤水稳性大团聚体的影响
12.Effects of Nitrogen Application on N_2O Flux from Fluvo-aquic Soil Subject to Freezing and Thawing Process氮素调控对冻融过程中土壤N_2O排放的影响
13.Research on the soil moisture content of Zhalong wetland during thawing period融冻时期扎龙湿地土壤含水量变化研究
14.Analysis on Soil Frozen and Thawed Regulation under Different Soil Surfaces不同地表条件下土壤冻结、融化规律分析
15.Effects of particle sizes on the N_2O emission of soil irrigated with nitrogen in freezing and thawing process粒径对冻融过程中加氮灌溉土壤N_2O排放的影响
16.Review on the Effects of Freezing and Thawing on the Physiochemical and Biological Properties of Soil冻融作用对土壤理化及生物学性质的影响综述
17.The Study on Soil Water Dynamic Rule of the Herbage Larch Forest in the Great Xingan Mountains during the Thawing Period;大兴安岭草类落叶松林冻土融化期土壤水分动态变化规律研究
18.RESEARCH OF GROUND FROZEN DEPTH IN SEASONALLY FROZEN AREAS季节性冻土地区土壤冻结深度的研究
相关短句/例句
freezing-thawing soil冻融土壤
3)freezing and thawing soils冻融土壤
1.BP network model research on water and salt transfer forecast in seasonalfreezing and thawing soils;季节性冻融土壤水盐动态预测BP网络模型研究
4)freezing and thawing soil冻融土壤
1.Based on the infiltration experiments of naturalfreezing and thawing soils in field during the freezing and thawing periods, the main factors which influence the water infiltration features offreezing and thawing soils were analyzed and discussed.以冻融期间大田自然冻融土壤入渗试验为依据，分析讨论了影响冻融土壤水分入渗特性的主要因素。
5)Seasonally frozen soil季节性冻融土壤
6)soil freezing heave/thawing settlement土壤冻胀融沉
延伸阅读
冻融作用在寒冷气候下，由于岩土中水冻结和融化等引起的若干作用的总称。包括：①冻结和融化,蒸发和凝结,升华和凝华，即岩土中水的相变；②岩土中水分、盐分和土颗粒的迁移；③土的冻胀和冻土融沉；④土的冻裂等。随着季节的交替，冻融作用会反复发生。在此过程中，细小土粒和矿物的微裂隙中的水膜的楔开压力也随着发生变化，从而导致细小土粒和矿物的破坏，使粒径变小，这种作用称为冷生水化风化。它不同于通常所说的寒冻风化。后者是由岩石大裂隙和空隙中冰的楔开压力产生的。在非冻土区，石英的最终风化粒径比长石大。但在冻土区，由于冷生水化风化，石英的最终风化粒径(0.05～ 0.01毫米)比长石的最终风化粒径（0.1～0.05毫米）为小。反复冻融时发生的另一种物理－化学作用，是胶体和粘粒凝聚成微集合体，使土的粒径增大。上述两种不同方向的作用形成一个相同的结果，使遭受反复冻融作用的岩土的粉粒含量大为增加。同时，形成一系列特殊的冷生地貌，即冰缘地貌。
