生物腐植酸对土壤碳组分的影响  

Effects of Biology Humic Acid on the Component of Soil Carbon

作　　者：杨海波[1,2] 陈运[2] 侯宪文[2] 

机构地区：[1]山西省农业科学院果树研究所,山西太谷030815 [2]中国热带农业科学院环境与植物保护研究所,海口571101

出　　处：《中国农学通报》2015年第20期137-141,共5页Chinese Agricultural Science Bulletin

基　　金：海南省应用技术研发与示范推广专项"低pH值土壤调理剂在海南蔬菜种植土壤上的应用效果及推广"(ZDXM2014132);公益性行业(农业)科研专项"甘蔗叶;香蕉茎秆;木薯杆;菠萝茎叶肥料化/基质化利用技术研究与示范"(201203072-04)

摘　　要：土壤碳含量是评价土壤质量的重要指标,对土壤物理、化学以及生物学性质都有重要的影响。增加土壤碳的含量不但有助于农业生产的可持续发展,而且对整个地球生态系统的物质循环也有着至关重要的作用。笔者研究了从有机废弃物发酵产物中提取的生物腐植酸对土壤碳组分的影响。结果表明：腐植酸、有机肥均能在一定程度上显著增加土壤总有机碳的含量,其中腐植酸＋化肥处理能在较长的时间内（10-40天）保持土壤有机碳含量,其土壤有机碳碳含量增加了1.6%-10.5%。不同施肥处理土壤水溶性有机碳含量存在差异,与对照相比,腐植酸＋化肥处理土壤水溶性碳含量增加了2.7%-20.1%。施肥处理能保持土壤微生物生物量碳含量,腐植酸添加量为400 mg/kg时施肥处理土壤微生物生物量碳含量显著高于对照处理。The content of soil carbon is an important indicator for the evaluation of soil quality, it couldsignificantly affect the physical, chemical, and biological properties of soil. The increase of soil carbon contentnot only contributes to the sustainable development of agricultural production, but also plays a vital role inmaintaining the cycle of the earth ecosystem. The author studied the effects of biology humic acid, which wasextracted from the tunning of organic waste, on the component of soil carbon. The results showed that humicacid and organic fertilizer could significantly increase the content of soil total organic carbon to a certainextent. The treatment of humic acid ＋ chemical fertilizer could maintain soil organic carbon content in a longtime（10-40 d）, and the soil organic carbon content increased by 1.6%-10.5%. The contents of soil watersoluble organic carbon were different in different fertilizer treatments, compared with CK, the soil water solubleorganic carbon content increased by 2.7%- 20.1% in the treatment of humic acid ＋ chemical fertilizer.Fertilization treatments could maintain the content of soil microbial biomass carbon, which was significantlyhigher than that of CK under humic acid content of 400 mg/kg.

关 键 词：生物腐植酸 土壤碳组分 土壤水溶性有机碳 微生物生物量碳 

分 类 号：S158.5[农业科学—土壤学] S147.5[农业科学—农业基础科学]