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小庙河位于东江上游老隆段左岸,黄塘水支流末端,河长6公里,流域面积18.4平方公里,其中水土流失面积6.97平方公里,内有崩岗130处(面积0.95平方公里)。崩岗是水土流失最强烈的类型之一。一遇暴雨,山洪挟带大量泥沙象泥石流一样从崩口出,它是壅塞河床、阻碍航运交通、淹没农田的泥沙的主要来源。因此,治理崩岗是综合治理的一项主要内容,也是水土保持工作的一项艰巨任务。
Located on the left bank of Laolong section of the upper reaches of Dongjiang River and at the end of Huangtang water tributaries, the small temple river is 6 kilometers long and covers an area of 18.4 square kilometers. Thereinto, soil erosion area is 6.97 square kilometers and there are 130 collapsing posts (area 0.95 square kilometers). Collapsing is one of the strongest types of soil erosion. In the event of a heavy rainstorm, a large amount of muddy sand carries a large amount of sediment out of the mouth like a debris flow. It is the main source of sediment that blocks river traffic, hinder shipping traffic and inundates farmland. Therefore, the collapse of governance is a major component of integrated governance and a difficult task for soil and water conservation.