广州地区晚季稻田甲烷排放通量与施肥影响研究  

RESEARCH ON THE RELATION BETWEEN METHANE EMIS-SION FLUX AND EFFECT OF APPLYING DIFFERENT KINDS FERTILIZER TO LATE RECE PADDY-FIELD IN THE GUANGZHOU AREA

作　　者：杨军[1] 陈玉芬[1] 胡飞[1] 王国昌[1] 伍时照[1] 

机构地区：[1]华南农业大学实验中心,华南农业大学农学系

出　　处：《华南农业大学学报》1996年第2期17-22,共6页Journal of South China Agricultural University

摘　　要：研究了广州地区晚季稻田在农业管理措施和肥效基本相同情况下，施用不同肥料类型对稻田甲烷（ＣＨ４）排放通量的影响。试验初步表明：晚季稻田ＣＨ＿４排放基本集中在水稻生长前期；稻田处于灌溉淹水状态是ＣＨ＿４产生的必要条件；稻田处于干湿期间无明显ＣＨ＿４排放；施用有机肥料ＣＨ＿４的排放量明显高于施纯化肥；温度高有利于ＣＨ＿４排放。This study dealt with the effects of using four kinds of fertilizer application at the same effective fertility level under the normal late rice field management to pad- dy-fields in Guangzhou area on methane emission flux.The result showed that methane emitted significantly in the early growth phase of late rice in paddy-fields,in paddy-fields water immersion was a necessary condition for methane emission,no significant methane emitted in the dry-wet management period;methane emission flux in fields with organic manure applied was higher than that in fields treated with chemical fertilizers;higher soil temperature facilitated methane emission.

关 键 词：甲烷排放通量 施肥 水稻田 水稻 晚稻 

分 类 号：X502[环境科学与工程—环境工程] S511.062[农业科学—作物学]