%0 Journal Article %T Soil erosion along a long slope in the gentle hilly areas of black soil region in Northeast China
东北黑土漫岗区长坡面坡耕地侵蚀产沙沿程变化 %A GUI Ming %A CAI Qiangguo %A ZHU Axing %A FAN Haoming %A
崔明 %A 蔡强国 %A 朱阿兴 %A 范昊明 %J 地理学报(英文版) %D 2007 %I %X Characteristics of soil erosion change along a long slope in the gentle hilly areas in black soil region in Northeast China are discussed. A simplified slope model based on segments was used to analyze the runoff data and soil erosion data observed between 2003 and 2004 over 10 field plots with different slope length in Heshan Farm, Heilongjiang Province. We found that soil erosion rate over long slopes in the black soil region changed alternatively along the slope and creates alternative zones of intensive erosion and week erosion.The exact place of each zone is different for different rainfall conditions. In a year with less and mild precipitation, rill cannot happen within the top 50 m, while in a year with large and intensive precipitation, rill can be formed starting even at 15 m from the top of the slope. %K gentle hilly black soil region %K alternative change %K erosion zone %K plant hedgerow
丘陵 %K 黑土 %K 土壤腐蚀 %K 灌木种植 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=E7E6A89DD0CE36AA3756C02EB6F15CA7&aid=5BA643835EAB936248AA795CF57B5027&yid=A732AF04DDA03BB3&vid=BCA2697F357F2001&iid=38B194292C032A66&sid=315A3D008C6ECFC8&eid=663FF78B2ADE7A2D&journal_id=1009-637X&journal_name=地理学报(英文版)&referenced_num=0&reference_num=16