垃圾填埋场营造人工植被的研究

Study on the Rehabilitation of an Artificial Ecosystem of Vegetation on a Waste Landfill Site

采用３种不同栽培方式，受试木本植物１６种、草本植物９种，在垃圾填埋场进行营造人工植被的试验。结果表明，填埋场甲烷气是影响植物成活的主要因素。在填埋１—２年的废弃地上，栽培短周期生长植物全部成活，获得了预期效果。在埋龄１年的垃圾废弃地上不易种植长周期生长的木本植物，在埋龄２年的废弃地上，仍需采取覆盖６０ｃｍ土层阻断沼气等措施才能生长。筛选出抗性较好的植物枸杞、苦楝、紫穗槐、刺槐、白蜡树、女贞、苜蓿、画眉草、牛筋草和知风草等十几个品种。

An artificial ecosystem of vegetation wasrehsbilitated with 16 species of xylophyta and 9species of herb&ceous herb by using three differenttechniques of cultivation on a waste land fill site. TheresultS showed that methane given out of the land fillsite was a main factor affecting the rate ofvegetation survival. On a land fill site where therefuses hsve been dumped for 1 to 2 years, thedesired resultS were obtaind for planting thevegetation of a short6r growing Period. The Speciesof xylophyta having a longer Period of growth werenot suitable to be planted on a discarded refuselandfill site of 1 year and could be planted on a 2year discarded refuse land fill site only by coveringan earth layer of 60 cm thick to break methanegiven out. The species of plant which have a highertolerance have been screened as follows: Lycium chinensis Mill., Melia azeclarach L., Amorpha fruticosa Linn., Robinia pseudoacacia Linn., Fraxinus chnensis Roxb., Ligustrum Lucidum Ait., Medicago sativa L.,Eragtrostis pilosa, Eleusine india, Eragrostis Ferrngiea Beanv.