摘要
以草坪修剪物、银中杨-玉簪落叶为试材,采用室内培养方法,研究了草坪修剪物与银中杨-玉簪落叶4∶1、1∶1、1∶4三个配比对腐解过程中混料水溶性有机碳、可提取腐殖酸、胡敏酸、富里酸及胡敏素碳含量(WSOC、CHE、CHA、CFA和CHu)的影响,以期为园林固体废弃物的资源化利用提供科学依据。结果表明:混料无论何种配比,其在培养结束后均有利于CHE和CHA的累积,其中混料1∶4的配比对CHE的促进程度最大,在此过程中,微生物对WSOC和CHu组分表现出较高的消耗和分解作用;混料配比为4∶1时更有利于CHA的形成,同时对CHA/CFA的促进作用最大,增幅达67.4%,其次是1∶1的配比条件;草坪修剪物与银中杨-玉簪落叶间按照1∶1质量比混合在60d腐解过程对HA分子结构的简单化具有促进作用;相反,4∶1或1∶4的配比则使混料HA分子结构向复杂化方向发展。综上,当草坪修剪物与银中杨-玉簪落叶以4∶1配比混合腐解时对于物料腐熟程度的促进作用最大。
Turf grass clippings and fallen leaves from Populus alba ‘Berolinensis＇ L. Hosta plantaginea Aschers.were used as the tested object,the indoor culture method was adopted in this article to study the effects of different ratios of turf grass clippings to fallen leaves fromPopulus alba‘Berolinensis＇ L. Hosta plantaginea Aschers.4∶1,1∶1 and 1∶4 on the C contents of watersoluble organic carbon,humic-extracted acid,humic acid,fulvic acid and humin（WSOC,CHE,CHA,CFA and CHu）of mixed materials in their decomposition process in order to provide scientific basis for the resource utilization of garden solid waste.The results showed that no matter what the ratio of mixed materials was,the CHEand CHAcould be accumulated after the culture,and the ratio of 1∶4 had the greatest promotion degree to CHE.In this process,the greater degrees of consumption and decomposition of WSOC and CHucomponents were showed by the microorganisms.The 4∶1 ratio of mixed materials was more conducive to the formation of CHA,and it had the greatest promotion degree to the CHA/CFAratio,which was increased to 67.4%,followed by the 1∶1 ratio.The mass ratio of turf grass clippings to fallen leaves fromPopulus alba ‘Berolinensis＇ L. Hosta plantaginea Aschers.of1∶1 had the promotion effect on the simplification of HA molecular structure after 60 days,on the contrary,the HA molecular structure of mixed materials was tended to the simple direction from the4∶1 or 1∶4 ratio.To sum up,when the ratio of turf grass clippings to fallen leaves from Populus alba ‘Berolinensis＇ L. Hosta plantaginea Aschers.was 4∶1,the promotion effect on the maturity extent of the mixed materials was the most significant.
出处
《北方园艺》
CAS
北大核心
2018年第5期78-83,共6页
Northern Horticulture
基金
国家自然科学基金资助项目(41401251)
吉林省科技厅优秀青年人才基金资助项目(20170520091JH)
吉林农业科技学院重点学科培育资助项目(吉农院合字[2015]第X004号)
关键词
草坪修剪物
落叶
腐解
腐殖质组成
turf grass clippings
fallen leaves
decomposition
humic composition
