吹蚀

砾石覆盖对土壤吹蚀的抑制效应

Effect of Gravel Mulch Restraining Soil Deflation by Wind Tunnel Simulation

中国干旱区不同成因沉积物吹蚀速率的实验研究

Wind Tunnel Experiments on the Deflation Rates of Different Sediments in Arid Regions of China

而裂隙之间的沉积物后期在风力的磨蚀作用和吹蚀作用之下，逐渐形成雅丹体。

While the sediments between cracks , shaping by the abrasion and deflation of wind , gradually forming the yardangs .

在每秒20米的风洞实验中，吹蚀模数几乎为零。

In the experiment under the 20 m / s wind tunnel conditions , the wind abrasion modulus is almost zero .

所以风力吹蚀作用是晚更新世末期中国陆架的基本动力。

Therefore , eolation was the basic effect , on the China Shelf area in the later stage of Late Pleistocene .

在一定风速吹蚀下，土壤风蚀模数随带宽的增加而减小，风蚀模数与带宽符合幂函数曲线变化规律。

Under same wind speed , the wind erosion modulus decreased as a power function when the strip width was increased .

风沙地貌是指由于风对地表松散物质的吹蚀、搬运和堆积而形成的地貌。是陆地地貌的重要组成部分。

Sandstorm landscape is forming of the wind erosing , transport and accumulating surface material of loose sand , which is an important part of the geomorphology of the land .

基于风洞实验数据，对砂质壤土与壤质砂土短期吹蚀的粒度分形结构及其分维变化进行了探讨。

Based on the fractal theory and experimental data in wind tunnel , the fractal character of soil particle size in a short period was preliminarily discussed in this paper .

在风洞实验室模拟测定了不同砾石覆盖密度和覆盖方式的土壤吹蚀速率。

The rates of soil deflation in different gravel spread density ( G d ) and gravel spread pattern were simulated and determined in the wind tunnel of Desert Research , Chinese Academy of Sciences .

究其原因，除大气运行外，主要是地面裸露，地表多为易被风力吹蚀的沙粒粉尘，加之干热的气候、强烈的辐射和干燥的地表加剧了大风沙暴的危害。

With regard to the causes , in addition to atmospheric movement , the main causes were uncovered land surface , sandy dust easily eroded by wind , dry and hot climate , strong radiation and dry land surface .

在7m/s、15m/s和20m/s的实验风速下，对不同浓度土壤凝结剂处理的沙障模型进行风洞吹蚀实验。

The wind erosion characteristics of soil coagulant sand barrier with different concentration treatments were measured under wind tunnel test in the testing wind velocity of 7 0 ? m / s , 15 0 ? m / s and 20 ?

根据不同沉积物吹蚀速率的差异性，可以将这8种沉积物划分为4类：（1）湖相沙和河流沙在干燥条件下极易遭受风蚀，是最主要的沙源物质；

According to the deflation rates , the 8 typical sediments can be divided into four categories : ( 1 ) lacustrine sand and alluvial sand , which are prone to wind erosion , and are the main sources of aeolian sand ;

将物理性砂粒含量、土壤含水量和吹蚀风速对风蚀模数的影响进行了三元非线性回归尝试。

The relationship between critical threshold of wind velocity for soil erosion , soil physical sand content and the soil moisture content can be expressed by a binary regression . The wind erosion modulus was expressed as a trinary quadric regression . 3 .

通过对中国干旱区8种不同成因沉积物吹蚀速率的风洞实验，从风蚀动力机制上讨论沙漠的物质来源及其与沙丘发育和沙漠形成的关系。

By the wind tunnel experiment , we studied the deflation rates of 8 different sediments in arid regions of China , discussed the sources of aeolian sand and its influence on the development of sand dunes and formation of desert from the view of dynamics of wind erosion .

底吹氩钢包内衬蚀损行为的数值模拟研究

Mathematical modelling of erosion of ladle lining with argon blowing at bottom