城市污泥堆肥用作草皮基质对草坪草生长的影响  

The Municipal Sewage Sludge Compost Used as Lawn Medium

作　　者：李艳霞[1] 赵莉[1] 陈同斌[1] 

机构地区：[1]中国科学院地理科学与资源研究所环境修复室,北京100101

出　　处：《生态学报》2002年第6期792-801,共10页Acta Ecologica Sinica

基　　金："九五"国家重大科技攻关资助项目 ( 96 -90 9-0 1 -0 5 );北京市政府公开招标采购资助项目 ( 1 9990 91 2 )

摘　　要：研究了城市污泥堆肥生产草坪基质的应用效果。试验结果表明 ,城市污泥堆肥基质能明显提高黑麦草的地上和地下生物量和叶绿素含量 ;与不施化肥和施用化肥的对照相比 ,城市污泥堆肥可以增加土壤有效态氮、磷含量 ,促进植物叶片对氮的吸收 ,提高草坪的质量。用经过无害化处理的城市污泥生产草坪基质 ,既可以解决城市污泥的出路 ,又可以降低草坪的生产成本 。Sewage sludge is a by-product of wastewater treatment plants, which receive a great deal of effluents from industrial, municipal and/or rural sources. According to the national planning, an increase of sewage sludge production will occur in China very soon. So, more attention should be paid to its disposal. Sewage sludge has several characteristics: (1) it contains organic matter; (2) the organic fraction contains humic substances coming from the degradation of organic matter; (3) it contains varying concentrations of trace elements and synthetic organic compounds. The occurrence of disposal and utilization of sewage sludge is much later in China than in other developed countries and most of works in China focused on the sludge and compost using in vegetables and crops. Sewage sludge and compost used as medium for plant growth and fertilizer for lawny production were popular in many countries, but few was reported in China. In this experiment, the sewage sludge compost was used as lawn medium for ryegrass. The purpose was to examine the effects of sewage sludge compost on lawny-grass growth and the soil fertility. The pot experiment was conducted in April of 2000, which was composed of 5 treatments including check (0N-0P-0K-0compost), fertilizer (N∶P∶ K∶ compost=3∶ 1∶ 2∶ 0, 1.4t/hm 2), compost A (7t/hm 2 compost), compost B (14t/hm 2 compost), compost C (70t/hm 2 compost). Two types of soils (topsoil and subsoil) with the same experiment treatments were used. Each treatment was replicated six times. The experiments were carried out in the green house with temperature of 15~25℃ and 14 hours of light per day. The relative humidity of the green house was kept between 50～60 percent. Soil and compost samples were extracted by 1mol/L NaOH for available N and by 0.5 mol/L NaHCO 3 for available P and 1 mol/L NH 4AC for available K, respectively. The elements in the extraction were determined with hydrochloric acid titration, spectrophotometer and flame photometry. Heavy metal contents were ana

关 键 词：城市污泥堆肥 草皮基质 草坪草生长 肥效 

分 类 号：X173[环境科学与工程—环境科学]