PALEO-MUDFLOW ACTIVITY OF RIVER VALLEYS THE NORTHERN SLOPE OF THE KYRGYZ RIDGE
Almost all the main river valleys of the northern slope of the Kyrgyz range are affected by debris-flows. The most powerful and dangerous debris-flows are formed during the outbursts of high-mountain lakes (GLOF). Debris-flows caused by intense rainfall are no less dangerous. But the statistics include not all debris-flows, but only those that pose a threat to economic facilities and the population, but there are also GLOFs that do not pose a threat, but at the same time are able to transform the debris-flow cone, bring debris-flow material into the valley, block the channel and thereby create favorable conditions for future debris-flows. For a better understanding of the dynamics of debris-flow processes, in the most debris-flow active valleys, the dendrogeomorphological method was applied to determine the years of the flow of debris-flows. It is very important for making a forecast of debris-flow activity for the future to know what it was in the past and what factors were associated with the periods of activation.