论文部分内容阅读
土壤专家针对不同土地利用类型提出了水蚀定性评价模型，它以土地特性作变量，适用于缺乏详细资料，且无法用定量模型的地区。把土地利用和生境条件作变量与专家定性观测相关联建立有序分对数模型对水蚀进行分级，其总体准确率为７８％，８％偏高，１４％偏低。在预测有无侵蚀时准确率为８６％，但在判断中、强度侵蚀时准确率较低，这是由于专家对侵蚀分级在认识上不同引起的。
Soil experts proposed a water erosion qualitative evaluation model for different types of land use. Land quality was used as a variable to apply to areas lacking detailed information and unable to use quantitative models. Associating Land Use and Habitat Variables with Expert Qualitative Observations Establishing an ordered fractional logarithm model to classify water erosion has an overall accuracy of 78%, a high of 8%, and a low of 14%. The accuracy rate of 86% in predicting the presence of erosion is lower, but in the judgment, the accuracy of erosion in low intensity is low due to differences in understanding among experts on the classification of erosion.