【摘要】 采用化学措施防治水土流失已成为一个新的研究领域并受到研究者的广泛关注。对具有防治水土流失作用的高分子聚合物——聚丙烯酰胺最优剂型的适宜用量进行室内试验研究,得出聚丙烯酰胺能保持减少土壤流失量50%以上的效果,即聚丙烯酰胺防治水土流失效果的持效期可以达到2年以上。更多还原

【Abstract】 Using chemical measures to prevent and control soil and water loss has become a new research field and drawn widely attention of researchers.The paper takes proper dosage of optimized formulation of polyacrylamide,which is high polymer and has the functions of soil and water loss prevention and control for laboratory study.The result shows that polyacrylamide can keep the effect of reducing the amount of soil and water loss more than 50%,i.e.the lasting effective period for soil and water loss prevention and control can last for more than two years.更多还原