侵蝕模數英文
erosion modulus
modulus of erosion
例句與用法
更多例句： 下一頁- The results show that the annual mean erosion rate ( ca . 45 years ) is 15850 t / km2 - yr and its spatial distribution has clear difference
研究表明，坡耕地年平均侵蝕模數為15850叭燦2 . a ) ，具有明顯的空間分異格局。 - There was no direct correlation between runoff module and erosion module , but there was an obvious consistency between runoff module variation and erosion module variation . the catchments with large runoff module variation also had a large erosion module variation . 5
徑流模數和侵蝕模數多年平均值之間沒有直接的相關性，而徑流模數的變化和侵蝕模數的變化之間有很好的協同性，徑流模數變異大的集水區對應的侵蝕模數變異也大。 - The land use spatial distribution pattern had a decisive impact on the inter - year variation characteristics of both runoff and sediment . the catchments , which had even land use spatial distribution , had small inter - year variation of both runoff and sediment , and vice versa . 6
集水區內土地利用類型空間分布均勻，則該集水區對應的徑流模數和侵蝕模數年際變化小；反之，土地利用類型空間分布格局不均勻的集水區，徑流和泥沙的年際變化則大。 - Fourthly , critical value of erosive modulus , which may cause soil carbon and nutrient changing , has been taken . the results of simulation showed that different soil nutrient element ( c , n , p , k ) have different soil acceptable erosive modulus in different land use types . for example , in this study , the critical value for nitrogen is located in the range of 1500 - 2000t / km2for forest land , 2000 - 2500 t / km2 for tillage land , 2500 - 3000 t / km2 for garden land , and 1000 - 1500 t / km2
四、得到了引起土壤碳和養分發生變化的侵性模數閥值:通過對地塊土壤侵蝕模數、碳和養分含量變化的計算，得到了不同利用類型中不同元素含量出現下降的最低侵蝕模數閥值，如耕地全氮為2000一2500噸，果園全氮為3000一3500噸，林地全氮為1000一1500噸，草地全氮為1000 - 1500噸，從而為流域侵蝕治理規劃和生態環境建設提供了科學依據。 - The results show that topographic slope gradient has important influence on soil and water loss , the bigger slope gradient and the more soil and water loss , and the slope gradient 15 is a relative threshold of soil erosion modulus , but the influences of topographic height and slope aspect are slight
結果表明：地形坡度是影響徑流和泥沙產生的重要因素，產生徑流和泥沙的模擬值隨地形坡度的增大而增大，地形坡度15是坡耕地土壤侵蝕模數的相對質變點；地形高程和坡向對產生徑流和泥沙的影響不大。
