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河南地处中原,北、西、南三面分别有太行、伏牛、桐柏、大别山四大山系环抱,中部和东部是华北平原的组成部分。黄河、淮河、长江、海河四大水系贯穿其中,成为我国南北气候多变的过渡地带,因此构成水土流失的自然因子和社会因素也是十分复杂的。 全省总面积16.7万平方公里,其中山丘地区面积7.82万平方公里,占全省总面积的46.8％,共有水土流失面积6.12万平方公里,占山丘区面积的78％。水土流失最严重的
Henan is located in the Central Plains, north, west and south sides are surrounded by the Taihang Mountains, Funiu, Tongbai, Dabieshan four mountains, the central and eastern part of the North China Plain. The Yellow River, the Huaihe River, the Yangtze River and the Haihe River run through the four major water systems, becoming a climate changeable transitional zone in North and South China. Therefore, the natural factors and social factors that constitute soil erosion are also very complicated. The province’s total area of 167,000 square kilometers, of which area of 782,000 square kilometers hills, accounting for 46.8% of the total area of the province, a total area of 61,200 square kilometers of soil erosion, accounting for 78% of the hill area. Soil and water loss is the most serious