土壤侵蚀模数 meaning in English
modulus of soil erosion
Examples
- 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养分发生变化的侵性模数阀值:通过对地块土壤侵蚀模数、碳和养分含量变化的计算，得到了不同利用类型中不同元素含量出现下降的最低侵蚀模数阀值，如耕地全氮为2000一2500吨，果园全氮为3000一3500吨，林地全氮为1000一1500吨，草地全氮为1000 - 1500吨，从而为流域侵蚀治理规划和生态环境建设提供了科学依据。 - 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
结果表明：地形坡度是影响径流和泥沙产生的重要因素，产生径流和泥沙的模拟值随地形坡度的增大而增大，地形坡度15是坡耕地土壤侵蚀模数的相对质变点；地形高程和坡向对产生径流和泥沙的影响不大。 - The paper establishes a mathematical model for calculating soil erosion modulus and a method for calculating new soil loss by using annual rainfall data and individual rainfall data , taking the outcomes of tests and study of natural rainfall , artificial rainfall and washout as a basis , rainfall erosion force , soil resistance to erosion and ground slope as main factors and combining with the study on new soil loss in typical regional development and construction
摘要以天然降雨、人工降雨、放水冲刷等试验研究成果为基础，结合典型区域开发建设新增土壤流失分析的研究成果，以降雨侵蚀力、土壤抗冲性和地面坡度为主要因子，建立了用年降雨资料和次降雨资料计算土壤侵蚀模数的数学模型和开发建设新增土壤流失量的计算方法。