不同离子对水稻田土壤甲烷氧化活性影响的研究  

Effect of mineral nutrition ions on the activity of methane oxidation in paddy soil

作　　者：陈中云[1] 闵航[1] 吴伟祥[1] 

机构地区：[1]浙江大学生命科学学院生物科学系,浙江杭州310029

出　　处：《植物营养与肥料学报》2002年第2期219-223,共5页Journal of Plant Nutrition and Fertilizers

基　　金：国家自然科学基金项目 (3 0 170 0 3 0 );国家教育部留学回国人员基金;中国科学院南京土壤研究所开放实验室

摘　　要：研究了矿质元素不同的阴离子和阳离子与黄松泥田水稻土壤氧化甲烷活性之间的相关性。结果表明 ,不同的阴离子和阳离子对甲烷氧化活性的影响有显著性差异 ,不同浓度的同一种阴离子或阳离子对甲烷氧化活性的影响也有显著性差异。Na+ 较K+ 对土壤甲烷氧化活性具有更强的抑制作用。NH+ 4 和NO-2 可与甲烷氧化竞争土壤中的分子氧而有明显的抑制作用。Cr3 + 对微生物具毒性而影响土壤的甲烷氧化。阴离子PO3 -4和CO2 -3 无明显影响。这种影响的差异性不仅与阴离子和阳离子本身的理化特征有关 ,而且与土壤对阳离子的吸附力及阴离子与土壤的相互作用强度有关。The effect of cations and anions in mineral nutrition compounds on methane oxidizing activity was studied in Marine fluvigenic yellow loamy paddy soil The results indicated that there were significantly different effects of various cations and anions at different concentrations on methane oxidizing activity in paddy soil Na + had a stronger inhibition than K + to methane oxidation in paddy soil NH + 4 and NO - 2 could obviously decrease the methane oxidation for competition of limited O 2 in soil Cr 3+ had the bio toxicity to microorganisms, leading to the decline of methane oxidizing activity PO 3- 4 and CO 2- 3 had no notable effect on methane oxidation

关 键 词：矿质元素 阳离子 甲烷氧化活性 甲烷 温室效应 水稻田 

分 类 号：S153[农业科学—土壤学]