土壤风蚀
- Soil wind erosion;soil drifting
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蒙古高原土壤风蚀危险度的FCM模糊聚类研究
Wind Erosion Hazard Assessment of Mongolian Plateau by Using FMC Fuzzy Cluster Method
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青海共和盆地土壤风蚀的~(137)Cs法研究(Ⅰ)&~(137)Cs分布特征
Application of Caesium-137 Technique on Wind Erosion in Gonghe Basin , Qinghai Province (ⅰ) - ~ ( 137 ) Cs Distribution Characteristics
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为减轻土壤风蚀危害,在河北坝上地区农田起垄的方向宜采用与自然风向NW(西北风向,315°)成90°,即东北方向45°。
Therefore , the direction of field ridge in Heibei Bashang region is suitable with 90 ° to NW ( natural wind direction 315 °), that is the direction in NE ( 45 °) .
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在土壤风蚀研究中,Bagnold建立的干沙子的起动风速与沙粒粒径关系的表达式已被广泛接受。
The widely accepted Bagnold type function to calculate threshold wind velocity or shear velocity was developed for dry sands .
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由于直立残茬和植被覆盖的共同作用结果,风洞集沙仪收集的保护性耕作农田最大土壤风蚀量集中在距地表18~40cm的高度范围内。
As the result of the co-action of the erect stubble and vegetation cover , The position that the maximum soil wind erosion amount for conservation tillage farmland measured by sand sampler located in the height range of 18 ~ 40cm .
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影响土壤风蚀主要因素的风洞实验研究
Study on Some Factors Influencing Soil Erosion by Wind Tunnel Experiment
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第四,土壤风蚀土壤亚模型和预测系统的建立和动态研究阶段。
The fourth is setting up sub soil model prediction system .
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土壤风蚀中有关土壤性质因子的研究历史与动向
Research history and trend on soil property factors concerning wind erosion
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东北典型黑土区土壤风蚀环境分析
Soil Wind Erosion Environment in Black Soil Region in Northeastern China
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中国北方土壤风蚀问题研究的进展与趋势
Achievements and needs of studies on wind erosion in northern China
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植被对土壤风蚀影响的风洞实验研究
Wind Tunnel Studies on Influences of Vegetation on Soil Wind Erosion
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土壤风蚀物中沙粒的动力学特性分析
Analysis of dynamic characteristics of sand grains in wind erosion soil
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保护性耕作能够有效减少农田土壤风蚀。
Conservation tillage could reduce soil wind erosion effectively on farmland .
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防治旱作农田土壤风蚀的研究
Study on the prevention of wind erosion of soil from dry cropland
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土壤风蚀是造成沙漠化的首要环节。
Soil wind erosion is the first tache of resulting in desertification .
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彰武农田土壤风蚀物垂直分布规律的研究
Research of Farmland Soil Erosion on Vertical Distribution Law in Zhangwu County
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绿洲农田土壤风蚀及其控制机理。
Wind erosion and its control mechanism of oasis farmland .
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垄作防止土壤风蚀的作用
Function of ridge culture in preventing wind erosion of soil
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土壤风蚀采沙器的结构设计与性能试验研究
Structural design and performance test of dust sampler for wind erosion measurements
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铁路工程中土壤风蚀预测方法研究
On Prediction of Soil Erosion by Wind in Railway Engineering
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半干旱区沙质农田土壤风蚀防治的效应研究
Effect on Controlling Sandy Farmland Soil Erosion in Semi-arid Area
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减轻土壤风蚀量,减少空中含沙量;
Reduce quantity of soil erosion and sand content in the air ;
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保护性耕作措施减少北方寒地土壤风蚀的研究
Research on Conservation Tillage to Reduce Soil Erosion in North Cold Area
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保护性耕作残茬覆盖防治农田土壤风蚀的试验研究
Experimental Study on Preventing Soil Wind Erosion by Conservative Crop Stubble Coverage
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用风洞实验方法计算土壤风蚀量的时距问题
Time problem in calculating soil wind erosion rate with wind tunnel experiment
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植被高度和分布形式对土壤风蚀影响相对较小。
The effect of vegetation height and distribution type is relatively small .
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土壤风蚀的野外风洞实验研究
A Study of Soil Wind Erosion With Portable Wind Tunnel
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而风沙运动所引起的土壤风蚀是沙质荒漠化主要表现形式之一。
Soil wind erosion is the primary form of desertification .
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沙地土壤风蚀动力因子分析
Analysis of Factors Causing Wind Erosion in Sandy Land
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土地沙漠化过程的土壤风蚀率指标&以青海共和盆地为例
Soil Wind Erosion Index for Desertification : A Case Study in Gonghe Basin