信阳地区位于淮河上游,跨淮河、长江两大流域。淮河控制面积17952平方公里,占全地区总面积18293平方公里的98.2％。信阳地区境内有淮河干支流48条,其中流域面积在2000平方公里以上的有狮河、竹竿河、潢河、洪汝河、白鹭河、史灌河等6条。淮河干流及其主要支流在息县陈棚乡以下逐年建起了标准不一的防洪堤 Xinyang region is located in the upper reaches of the Huaihe River, across the Huaihe River and Yangtze River two major drainage areas. Huaihe control area of ​​17,952 square kilometers, accounting for 98.2% of the total area of ​​18,293 square kilometers. There are 48 branches and tributaries of the Huaihe River in Xinyang area, including 6 streams of Lion River, Bamboo River, Yellow River, Hongru River, Bailu River and Shigu River, each with an area of ​​more than 2,000 square kilometers. The mainstream of the Huaihe River and its major tributaries, Chencun Township, Xixian County, have set up standard flood control dike