垃圾填埋场优势植物生长情况调查分析

选取深圳市下坪垃圾填埋场作为研究样地，分别于2012年春季和2013年冬季采集样地优势植物及土壤进行分析，对采集的优势植物和土壤的重金属含量等进行测定。结果显示：垃圾填埋场内土壤p H 4．32～7．30。土壤有机质平均值为2．82％，偏低。土壤总氮含量平均值为0．16％，介于参考值之间。土壤总磷含量为0．11％，位于参考值的下限。土壤和植物中Ba离子含量均较高，马缨丹、假臭草和蟛蜞菊对于铜的富集能力较强，番薯对Cr的富集能力较强，荷木对Ba和Pb的富集能力较强，部分植物可用于垃圾填埋场的土壤改良。

Analysis of Landfill Dominant Plants Growth Surnvey

The dominant plants and soil were collected from Shenzhen Xia Ping landfill in the spring of 2012 and the winter of 2013 .The content of heavy metals in dominant plants and soil physico-chemical were determined .It is shown that pH of the landfill soil is 4 .32~7 .30 .Soil or-ganic matter is 2 .82% on average ,lower than reference .The total nitrogen content of the soil is 0 .16% on average ,between the reference values .The total phosphorus content is 0 .11% ,lower than the reference .The content of Ba is higher .The copper is rich in Lantanacamara L .,Eupa-torium catarium Veldkamp and Wedelia chinensis （Osb .） DC .Cr is rich in Ipomoeabatatas （L .） Lam .Ba and Pb are rich in Schima superba Gardn .et Champ .Some plants can be used as soil improvement of landfill .