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大连市郊区是以菜为主,果牧结合的副食品生产基地。总土地面积为462平方公里,其中山、丘261平方公里,占57％;平地71平方公里、占15％。水土流失面积为236平方公里,占总土地面积的51％,已治理141平方公里,治理程度为60％。一、水土流失现状大连市郊区位于辽南沿海低山丘陵区,以棕壤土为主;植被主要为天然次生林;年平均降雨量为519～693毫米。由于季风影响,雨量多集于6～8月,平均雨量为320～430毫米,占全年雨量的62％。水土流失的特点是:1.土壤侵蚀强度依低山-山匠——浅丘漫岗-滨海阶地顺序,呈递减变化见表1。
Dalian suburbs is a food-based, fruit and animal husbandry combination of non-staple food production base. The total land area of 462 square kilometers, of which mountains, hills 261 square kilometers, accounting for 57%; flat 71 square kilometers, accounting for 15%. Soil and water loss area of 236 square kilometers, 51% of the total land area, has been the management of 141 square kilometers, the degree of governance of 60%. I. Present Situation of Soil and Water Loss The suburbs of Dalian are located in the hilly area of the south coast of Liaoning Province, dominated by brown earth; the vegetation is mainly natural secondary forests; and the average annual rainfall is 519-693 mm. Due to the monsoon effect, the rainfall is mostly set in June-August, with an average rainfall of 320-430 mm, accounting for 62% of the annual rainfall. Soil erosion is characterized by: 1. Intensity of soil erosion in accordance with the low mountain - mountain miner - shallow mound Manchu - coastal terraced order, showed a decreasing change in Table 1.