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作 者:马骏[1] 郭小平[1] 赵方莹[2] 程伟[3] 杜文利
机构地区:[1]北京林业大学水土保持学院,北京100083 [2]北京林业大学边坡绿化研究所,北京100083 [3]北京市环境卫生设计科学研究所,北京100028 [4]北京六里屯垃圾卫生填埋场,北京100094
出 处:《城市环境与城市生态》2008年第1期5-8,共4页Urban Environment & Urban Ecology
基 金:北京市科委<垃圾卫生填埋场植被覆盖技术研究与示范>项目中"选择适合填埋场边坡固坡产品研究"(Y0604017040131)
摘 要:以北京六里屯垃圾填埋场临时边坡为研究对象,选择苜蓿、冰草、二月兰3种混合的草种,采用5种建植技术,研究不同土壤条件下植物生长状况和不同建植方式植物高度、盖度、土壤侵蚀量等指标。结果表明:混合草种生长情况由高到低排序为苜蓿>冰草>二月兰;生长在铺有GCL防渗膜上的植物高度明显高于未铺GCL防渗膜土壤上的植物高度;不同建植方式植物高度、盖度由高到低排序:喷播>喷播+无纺布>植被毯>播种覆土+无纺布>播种覆土;播种覆土方式的土壤侵蚀量较裸露坡面减少约50%以上;5种建植技术的投资成本由高到低依次为:喷播+无纺布>喷播>播种覆土+植被毯>播种覆土+无纺布>播种覆土。Three mixed seeds,such as Medicago sativa Linn.,Agropyron cristatum(L.)Gaertn,Orychragmus violaceus were planted at the slope of Liulitun sanitary landfill in Beijing.The growth condition,height and cover degree of different vegetation,and the soil erosion amount were studied with five planting techniques.The experimental results showed that: 1) the growth condition of different vegetation from the top to bottom levels are Medicago sativa Linn,Agropyron cristatum(L.)Gaertn,Orychragmus violaceus;2) the height of vegetation growing on laying GCL is higher than growing on un-laying GCL;3) effects of different planting techniques from the top to bottom levels are spraying and sowing green,spraying and sowing green with non-woven fabrics,vegetation blanket,covering soil with non-woven fabrics,covering soil;4) comparing with the slope without vegetable,the slope with vegetable can reduce soil erosion about 50%;5) the investment costs of different planting techniques from the top to bottom levels are spraying and sowing green with non-woven fabrics,spraying and sowing green,covering soil with vegetation blanket,covering soil with non-woven fabrics,covering soil.
分 类 号:X705[环境科学与工程—环境工程]
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