修改食细菌线虫对石油污染土壤温室气体排放及微生物活性影响.doc

石油污染和食细菌线虫对土壤温室气体排放及微生物活性的影响 周际海* 唐嘉婕1 袁颖红1 黄荣霞1,2 程坤1 吴雪艳1袁东东1 樊后保1（南昌工程学院 江西省退化生态系统修复与流域生态水文重点实验室, 南昌 3300991；安徽农业大学 资源与环境学院, 合肥 230036）方面石油污染食细菌线虫，石油污染食细菌线虫对土壤温室气体及微生物活性的影响实验设5新鲜土壤S）、新鲜土壤+5.0 g石油kg干土SP）、新鲜土壤+5.0 g石油kg干土+5条线虫g干土SPN5）、新鲜土壤+5.0 g石油kg干土+10条线虫g干土SPN10）、新鲜土壤+5.0 g石油kg干土+20条线虫g干土SPN20）。实验结果表明：石油污染土壤CO2、N2O排放-10.16倍、11.56-32.19倍，而对CH4的排放势S的6.59-9.83倍；石油污染FDA酶食细菌线虫可石油土壤酶的活性，温室气体CO2、N2O、CH4的排放 关键词：石油污染食细菌线虫土壤温室气体微生物活性中图分类号：X53 文献标识码：A 文章编号：ZHOU Ji-Hai*1, TANG Jia-Jie1, YUAN Ying-Hong1, HUANG Rong-Xia1,2, CHENG Kun1, WU Xue-Yan2, YUAN Dong-Dong1, FAN Hou-Bao1 (1 Jiangxi Key Laboratory for Restoration of Degraded Ecosystems Watershed Ecohydrology, Nanchang Institute of Technology, Nanchang 330099, China; 2 School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China) Abstract：Soil is an important source of greenhouse gases, soil fauna and microbes play important roles in soil carbon and nitrogen transformation and trace gases metabolism, however, there was little research on the relationship between the emission of greenhouse gas, soil fauna and soil microbes in contaminated soils. We therefore set up a laboratory experiment to explore the influences of oil pollution and bacterivorous nematodes greenhouse gas emissions and soil microbial activities. There were 5 treatments in this experiment: soil (S) as the control, soil+5.0 g oil kg-1dry soil (SP), soil+5.0 g oil kg-1 dry soil+5 nematodes g-1 dry soil (SPN5), soil+5.0 g oil kg-1 dry soil+10 nematodes g-1 dry soil (SPN10), soil+5.0 g oil kg-1 dry soil+20 nematodes g-1 dry soil (SPN20). Compared with the control, the emissions of CO2, N2O increased by 7.03-10.16 times, 11.56-32.19 times respectively in oil contaminated soil, and the emission of CH4 wasn’t impacted obviously. The oil pollution has seriously aggravated the greenhouse effect judging by the dynamic of global warming potential (GWP), and greenhouse effect has increased by 7.13-10.17 times compared with the control. O