京郊园林绿化废弃物数量测量与地区分布研究

为了加快北京市园林绿化废弃物资源化利用与布局，减少环境污染，实现资源的循环利用，在鹫峰实验林场国家森林公园、西山林场卧佛寺分场、延庆四海镇西沟里村、大兴林场，对北京市14种主要树种进行实地试验，估计乔木、灌木等生物量模型，进而测算北京市郊区园林绿化废弃物的数量。结果表明，北京市郊区园林绿化废弃物总量为406.395×104 t，主要分布在密云县、怀柔区、房山区、延庆县；按树种计算，乔木产生的园林绿化废弃物最多，经济林次之，疏林地和苗圃产生的废弃物较少；乔木产生园林绿化废弃物主要分布在延庆、大兴、怀柔，四旁树分布在顺义和房山，经济林则主要分布在密云县；影响园林绿化废弃物数量的主要因素有城市园林抚育修剪规则、林区抚育规则和采伐任务、自然灾害等。园林绿化废弃物数量的科学测量为后期布局消纳点提供了理论量，是进行园林绿化废弃物利用的起点。

Study on Quantity Measurement and Regional Distribution of Green Waste in Beijing Suburbs

In order to speed up utilization and layout of gardens green waste in Beijing,moreover to reduce the pollution of environment and realize the resource recycling,the experiment was conducted by using 14 kinds of main species in Beijing to estimate the biomass model of trees and shrubs,moreover to estimate the amount of gardens green waste in Beijing suburbs in Jiufeng National Forest Park,West Hill Farm Pass Area,Xigou Village in Sihai Town of Yanqing,Daxing Farm.The results showed that,the amount of gardens green waste in Beijing suburbs was 406.395×10 4 t,which was distributing in Miyun County,Huairou Area,Fangshan District and Yanqing County.According to the calculation tree species,trees produce garden green waste which was the most,economic forest was the second,and open and nursery was the less.Garden green waste which was produced by trees was mainly distributed in Yanqing County,Daxing Area and Huairou Area,the green waste from the trees around the village was mainly distributed in Fangshan District and Shunyi District and the green waste from economic forest was mainly distributed in Miyun County.The factors which influenced the amount of green waste were city garden tending clip rules,forest tending rules and cutting task,natural disasters.Scientific measurement of the amount of green waste was providing theoretical number to construct processing point,which was the starting point of using the green waste.