地貌发育阶段的定量分析公式
（1）侵蚀积分值：
式中，
,
为第i条等高线以上的面积，A为全流域面积；
,
为第i条等高线与流域最低点的高差，H为流域最高点与最低点的高差；E为相应的侵蚀积分值。
（2）侵蚀分值过程线：
式中，T为时期（
）；a和b均为正常数。
（3）流域自然侵蚀过程的侵蚀模数：
式中，
为侵蚀模数（
）；A和B为统计系数。
（4）加速侵蚀量：
式中，
总侵蚀量；
为加速侵蚀量；
为自然侵蚀量。
（5）划分流域发育阶段的定量指标：
参考文献：
励强，陆中臣，袁宝印：地貌发育阶段的定量研究。地理学报，1990,45（1）
The Great Artesian Basin, also known as the "Great Australian Basin", is the world's third largest basin and the world's largest gravity basin. In Australia, is the world's largest gravity basin, located in the eastern part of the Australian mainland. In the Australian rock layer, covered with impermeable layer, the eastern part of the rain, the formation of water, groundwater flow at an annual rate of 11 to 16 meters flowing to the western region. Confined water through the drilling or natural springs and other gushing surface, so the river basin hence the name. The development of animal husbandry in Australia benefited from this unique terrain.
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