查干木伦河上源出于大兴安岭支脉罕山南麓,由北向南流经巴林右旗西南部汇入西拉木伦河。下游段河间谷地狭窄,两岸山地尚存有原生或次生林带。下游段河谷阶地发育,河床开阔,在黄土状沉积上形成的暗栗钙土,腐殖质较薄,有机质含量低,结合能力弱,易受降水和风力侵蚀,沿岸所汇支流沟壑纵横,与河川谷地交错分布,并相间有 Chagan Mulun source from the Daxinganling branch of the South Mountain, from north to south through the Balin right flag southwest into the West Lamen River. The lower reaches of the river valley is narrow, there are still native or secondary forest belt on both sides of the mountain. The lower reaches of the valley terrace development, open river bed, formed in the loess sediments of dark chestnut soil, humus is thin, low organic matter content, weak binding capacity, susceptible to precipitation and wind erosion, along the coast of the tributaries of the gully aspect, and the valley of the valley Staggered distribution, and with each other