Regionalization And Analysis Of Hydrogeology In The Northern Part Of The Greater Khingan Mountains

The " Northern Part Of The Greater Khingan Mountains " refers to Qiqihar,Heihe,Greater Khingan Mountains and Hulunbuir in the Inner Mongolia Autonomous Region.This area is located in the northernmost part of our country and is the high latitude area of our country.The average temperature has been low for many years.The study area has developed agriculture,forestry,and animal husbandry,with a large demand for water and a high proportion of groundwater.However,there are spatial differences in the distribution of groundwater in the study area.The hydrogeological zoning of the study area can be displayed in the form of a map.The distribution and existence of groundwater can provide references for the development and utilization of groundwater.Based on the theory of hydrogeology,this paper discusses the hydrogeological zoning of the study area in accordance with the corresponding principles and methods,and classifies and analyzes the results of the zoning,hoping to provide references for similar research.Taking the northern part of the Greater Khingan Mountains as an example,this document collects relevant maps of Heilongjiang province and administrative divisions,hydrogeology,surface rivers,etc.based on the principles of high correlation and easy access,select the division of the study area Indicators,specific hydrogeological zoning factors selected topography and morphology,various characteristic values of aquifers,mountain water storage structures and other indicators.Combine the research results of national and foreign scholars on physical geography and hydrogeological zoning,considering the current situation of the study area,choosing an appropriate zoning method and determining the principles of zoning;on the basis of a variety of zoning elements,secondary hydrogeological zoning was carried out,mainly Draw the following conclusions:The main types of morphology in the study area are the mountain and the plain,of which the area of the mountain areas is higher than that of the plain areas;the overall terrain is represented by the Greater Khingan Mountains raised in the middle,and the left and right sides are flat landforms,high in the north and low in the east,high in the west and low in the east.The enormous topographical and geomorphological difference of the hilly area and the plain area constitutes the respective hydrogeological units;based on the topography and geomorphology,tectonic units and surface water flow system,the study area is divided into three types: hilly area,plain area and plateau area.The areas are five first level areas,namely the hydrogeological area of Mount Daxinganling,the hydrogeological area of Mount Xiaoxinganling,the hydrogeological area of the Songnen plain,the hydrogeological area of the Xunhe plain and the hydrogeological area of the plateau of Hulunbeier;The study area is divided into two subdivisions based on factors such as groundwater,water storage structure,etc.and you get 20 subtype areas.After summarizing and analyzing the zoning results,it can be seen that the distribution of water in the hilly area is uneven;the plain area and plateau area show that the aquifer in the floodplain of the river valley is rich in water,the groundwater is shallow,and the groundwater is mainly extracted by shallow wells.The water richness in the area is relatively general,and the depth of the wells is mostly centered.