不同外源添加物对园林绿化废弃物腐熟过程的影响  

Effects of Different Exogenous Additives in Landscaping Waste Composting

作　　者：郝利峰[1] 孙向阳[1] 李雪珂[2] 王惠[1] 张强[1] 张婷[1] 

机构地区：[1]北京林业大学水土保持与荒漠化防治教育部重点实验室,北京100083 [2]北京林业大学园林学院,北京100083

出　　处：《中国农学通报》2012年第7期302-306,共5页Chinese Agricultural Science Bulletin

基　　金：北京市科技计划课题(重大)工艺应用类"北京市园林绿化废弃物资源再利用生产花木基质关键技术研究及示范"(D09040903780801)

摘　　要：以北京市香山公园园林绿化剪枝的废弃物为堆腐原料,采用露天高温好氧堆腐技术,通过测定堆腐试验过程中高温期持续天数、pH、EC值、C/N比、发芽指数GI等指标,研究在园林绿化废弃物堆腐过程中分别添加木酢液和炭化物相比添加菌剂及无添加剂时对园林绿化废弃物堆腐过程的影响。结果表明,添加木酢液及炭化物均可加快园林绿化废弃物的腐熟,主要表现为:添加木酢液及炭化物能加速堆体升温并增加高温期持续天数;添加木酢液可有效降低堆体pH、EC值;添加木酢液及炭化物的处理C/N下降率分别为44.50%、41.44%,稍低于添加EM菌剂处理的45.61%,高于空白处理的32.51%,且T值均在0.6以下;添加木酢液和炭化物能有效降解堆体中的植物毒性物质,2组处理的发芽指数高达98.03%和97.27%。Composting experiment was carried out by outdoor high-temperature aerobic compost technical, using landscaping wastes in Xiangshan Park of Beijing as composting material. The days of the high temperature period, EC value, pH value, C/N ratio and germination index （GI） were analyzed during the aerobic composting, and the different effects was analyzed when charcoal matter and wood vinegar, compared with the effective microorganisms （EM） and blank space group. The results showed that, both charcoal matter and wood vinegar would promote the process of composting of landscaping waste. Mainly as follows, the temperature rise and the days of the high temperature period were promoted by charcoal matter and wood vinegar. The pH value and EC value of the compost will be affected by charcoal matter and wood vinegar. The C/N ratio of descent can be achieved by charcoal matter and wood vinegar. It reached to 44.50% and 41.44%, which was slightly lower than the EM group （45.61%） and higher than the blank space contrast （32.51%）, and the T value was all below 0.6. The degradation of the plant toxic substance in the compost was subjected to be accelerated by adding charcoal matter and wood vinegar, and the GI was up to 97.27% and 98.03% respectively.

关 键 词：园林绿化废弃物 堆腐 炭化物 木酢液 

分 类 号：S141.4[农业科学—肥料学]