【摘要】 本文提出了Ｖ~２＋１６Ｐ＝０的分支集方程，由该方程建立考虑风速的沙漠化及其逆转的尖点突变模型，并用沙坡头人工植被的抗风力和沙坡头沙样含水量变化的风洞实验资料对该模型进行了解释，说明该模型适用于对土壤风蚀和土地沙漠化程度的预判断。更多还原

【Abstract】 In this paper we put forward a bifurcation set equation V￣2+16P￣2=0, and based on it established a cuspital catastrophe model. The model was examined and explained with the results of the experiments in wind tunnel on the capacity of wind erosion resistance of the artificial vegetation and the change in sandy soil moisture in the Shapotou area. The result showed that the cuspital catastrophe model can be used to estimate and predict the degree of soil erosion and land desertification.更多还原