检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:常文哲[1] 罗全华[1] 王向辉[1] 许小梅[1]
机构地区:[1]黄河水利委员会西峰水土保持科学试验站,甘肃西峰745000
出 处:《中国水土保持》2004年第1期22-23,共2页Soil and Water Conservation in China
摘 要:兰成渝输油管道工程甘陕段全长 5 3 8km ,建设中损坏原地貌和地表植被 ,产生大量的弃土弃渣。经分析计算 ,新增土壤流失量为 3 3 5 5万t,其中弃土弃渣流失量 2 3 19万t ,占流失总量的 69% ;损坏原地貌和植被新增土壤流失量 10 3 6万t。弃土弃渣是土壤流失防治的重点。The total length of Lan-Cheng-Yu Oil Piping Project in Gan-Shaan Section is 538 km. It damages the origin landforms and ground surface vegetation and produces a large quantity of spoil during construction. According to analysis and calculation that the newly increased soil loss is 335 500 tons, of which, spoil loss is 231 900 tons, making up 69% of the total loss and the newly increased soil loss from damaging the origin landforms and ground surface vegetation is 103 600 tons. Spoil is the key point to prevent and control soil loss.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.227