侵蚀模数
- 网络erosion modulus;soil erosion modulus
![侵蚀模数](../cache/1337936.jpg)
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不同植被类型间的土壤侵蚀模数差异极显著(p0.01),侵蚀模数平均达到45.88t/km~2·a,属于微度侵蚀。
The soil erosion modulus between vegetation types was prominence ( p0.01 ), and the mean erosion modulus was 45.88t / km2 · a , belong to slight erosion .
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10年平均土壤侵蚀模数减少2054~2149t/(km2·a),水土流失得到控制。
Average soil erosion modulus decreased by 2054 ~ 2149t / km 2 · a and soil erosion was controlled .
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流域颗粒态N、P污染负荷估算是由USLE方程得到流域土壤流失量(土壤侵蚀模数),然后由颗粒态N、P输出模型计算得出。
Pollution loading of particle N and P in ChaoHu lake watershed could be evaluated through export model of N and P after annual soil eroding volume was work out according to USLE equation .
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研究结果表明:依据次降雨相对侵蚀模数REM将历经25场模拟降雨的小流域模型发育过程划分为初期时段、活跃时段和稳定时段。
Results show that the development process of ( watershed ) model of twenty-five simulation rainfalls is divided into early phase , active phase and stable phase ( according ) to relative erosion modulus .
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并利用新的公式计算了农耕地的侵蚀模数[11570t/(km2·a)]。
Also , the modulus of erosion in agricultural land was calculated by using a new model , being 11 570t / ( km2 . a )
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结果表明:(1)文中所用估算方法较为合理,全流域的平均侵蚀模数为315.06t/(km2·年);
The results shows : 1 ) The estimate means is reasonable , and the average erosion modulus is 315 . 06 t / ( km2 · a ) .
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在中强度降雨2次/a、总降雨量3874mm情况下,25°坡地土壤侵蚀模数下降至2500t/(a·km2)以下。
The soil erosion modulus decrease to 2 500 t / ( a · km ~ 2 ) less , on the condition with two times common-intense rains a year and 387.4 mm of total rainfall .
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比较今天该地区的土壤侵蚀模数1000~4000t/(km2·a),水土流失的严重程度呈现出与人类活动同步增强的趋势。
Compared with the present soil erosion degree of this area , 1 000 ~ 4 000 t / ( km 2 · a ), the land loss has been gradually intensified with the growth of civilizations .
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花岗岩山地丘陵,是我国南方水土流失严重地区,年侵蚀模数可达8000~15000t/km~2。花岗岩风化壳极为发育,厚度可达60m以上,为严重的土壤侵蚀提供了丰富的固体物质。
The granite hilly area in South China is a region of severe soil erosion with annual erosion rate of 8000-15000 t / km2 . Thickness of the very developed weathered shell reaches more than 60m , which provides a plenty of erosible solid materials .
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开发建设项目水保监测中土壤侵蚀模数监测方法探讨&以东深供水改造工程水土保持监测项目为例
Discussion on the Monitoring Method of Soil Erosion Modulus of Construction Project
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广东阳江核电站工程土壤侵蚀模数的选取
Selection on modulus of soil erosion and water loss in Yangjiang Nuclear Power Project
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小流域土壤侵蚀模数的支持向量机预报模型研究
Application of Support Vector Machine Method in Predicting Soil Erosion Modulus of Small Watershed
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标桩法监测广东省人为侵蚀模数研究初报
Preliminary Study on Monitoring Man-made Soil Erosion Modulus of Guangdong Province Through Standard Stake Method
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城市化开发的侵蚀模数及流域淤积量研究
The Study on the Modulus of Erosion and Sediment Deposition of Watershed in Urbanized Development
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年侵蚀模数与坡长呈正相关关系;随着坡长增大,细沟侵蚀和浅沟侵蚀明显增强;
The rill erosion and gully erosion are seriously evident with the slope length becoming longer .
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可为类似项目的土壤侵蚀模数监测提供借鉴和参考。
This can provide references for the monitoring of soil erosion modulus in similar construction project .
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在相同条件下,降雨强度越大,侵蚀模数越大。
Under the same situation , the greater rainfall intensity is , the greater erosion modulus is .
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梧州市、贺州地区各河流年侵蚀模数特性浅析
Simple analysis of the annual erosion modulus characteristics of the various rivers in Wuzhou city and Hezhou prefecture
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结果表明,龙口市年均侵蚀模数为982.5t/(hm2.a),侵蚀强度属轻度;
The result showed annual average soil erosion amount was 982.5 t / hm2 and it was light degree erosion .
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土壤侵蚀模数是测度土壤侵蚀强度、进行区域土壤侵蚀评价研究的常用指标。
Soil erosion modulus is a measure of soil erosion intensity and a index to assess the regional soil erosion .
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四川省西充县土壤侵蚀模数数学模型和侵蚀强度分级的研究
Study on Mathematical Model of Modulus of Soil Erosion and Classification of Soil Erosion Intensity in Xichong County , Sichuan Province
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采用人工降雨实验,研究了不同配比对基材混合物的侵蚀模数的影响。
Based on artificial rainfall experiments , the effect of base material mixtures with different compositions on its erosion modulus is studied .
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植被覆盖度由原来不足10%提高到37.74%,土壤侵蚀模数下降了30%。
Vegetation cover is increased from under 10 % to 37.74 % . Modulus of soil erosion is decreased by 30 % .
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本文着重研究了江苏沿海平原沙土区土壤年侵蚀模数与引起土壤侵蚀各因素的关系。
The paper emphasizes the study on the relationship between annual erosion modulus of soil and the seven factors which influence soil erosion .
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穿过有大面积中生界和第三系地层出露地区的河流,其含沙量高,侵蚀模数大。
The rivers running across large area with emergence of mesozoic and tertiary stratum usually have high sediment concentration and large modulus of erosion .
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结果表明:农地径流量、侵蚀模数随雨强的增加而增加,并与降雨强度呈指数函数或幂函数;
The results showed that the farmland runoff and soil erosion were increased with the exponential or the power function of the rainfall intensity .
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集水区内土地利用类型空间分布均匀,则该集水区对应的径流模数和侵蚀模数年际变化小;反之,土地利用类型空间分布格局不均匀的集水区,径流和泥沙的年际变化则大。
The catchments , which had even land use spatial distribution , had small inter-year variation of both runoff and sediment , and vice versa .
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结果表明:坡耕地、杉木林地的次降雨地表径流量、地表径流侵蚀模数与坡度、降雨量、降雨强度、植被盖度等相关显著。
The results showed that the correlation between total surface runoff and erosion modulus with land use types and those influence factors above was significant .
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结果表明,植被恢复与重建使生物多样性提高的同时,土壤侵蚀模数比治理前下降了45%;
The results showed that vegetation restoration make it possible for the increase of biodiversity and the modulus of soil erosion declined by 45 % .
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以“东深供水改造工程水土保持监测”为例,探讨了土壤侵蚀模数的监测方法。
Takes " the monitoring of soil and water conservation in Dongshen water supply project " as an example , the monitoring methods of soil erosion modulus were discussed .