铁炉渣对稻田土壤甲烷传输释放的影响研究  

Effect of iron slag adding on soil methane transportation and release in paddy fields

作　　者：王纯[1] 王维奇[1,2] 李鹏飞[1] 

机构地区：[1]福建师范大学亚热带湿地研究中心,福建福州350007 [2]福建师范大学地理研究所,福建福州350007

出　　处：《实验技术与管理》2013年第7期40-43,共4页Experimental Technology and Management

基　　金：国家自然科学基金项目(31000209);福建省公益类研究所专项(2011R1037-5);福建省教育厅资助项目(JB11030);福建师范大学优秀青年骨干教师培养基金项目(fjsdky2012007)

摘　　要：为了阐明铁炉渣对稻田甲烷传输释放的影响,采用静态箱-气相色谱法,对对照样地和施加2、4、8Mg/hm2铁炉渣后稻田的甲烷传输释放进行了测定与分析。研究结果表明:观测期内,对照样地和2、4、8Mg/hm2铁炉渣施加稻田孔隙水甲烷浓度平均值分别为0.29、0.21、0.16、0.23μmol/L,气泡传输释放甲烷平均值分别为0.63、0.21、0.16、0.17 Mg/hm2,扩散传输释放甲烷平均值分别为0.07、0.12、0.07、0.09 Mg/hm2,植物体传输释放甲烷平均值为3.47、2.89、2.27、1.87 Mg/hm2。铁炉渣的施加降低了土壤孔隙水甲烷浓度、气泡传输和植物体传输释放甲烷量。In order to clarify the effect of iron slag adding on paddy field methane transportation and release, 2, 4, and 8 Mg/hm2 iron slag applications were determined by static chamber-gas chromatogram. The results show that methane concentrations in pore water are 0.29, 0.21, 0.16, 0.23 μmol/L, respectively. Bubble transportations and release methane are 0.63, 0.21, 0.16, and 0.17 Mg/hm2, respectively. Diffusion transportation and release methane are 0.07, 0.12, 0.07, and 0.09 Mg/hm2. Plant transportation and release methane are 3. 47, 2. 89, 2. 27, and 1. 87 Mg/hm2, respectively. Iron slag can decrease the methane concentration in pore water, bubble and plant transportation and release methane.

关 键 词：稻田 甲烷 铁炉渣 传输释放 

分 类 号：X833[环境科学与工程—环境工程]