CAJ | 학술논문

甲烷是一种重要的温室气体，虽然目前大气中含量远小于二氧化碳，但排放增长率却大于后者。研究区域为上海市黄浦江支流苏州河和淀浦河，通过实验数据对比城郊春夏的甲烷排放的差异，探讨甲烷产生的机制及其与环境因子的关系，这将有助于研究河流甲烷排放对于环境变化的影响。研究结果认为河流甲烷主要来源于水中沉积物，其产生与水质、温度等因素相关；同时甲烷摩尔浓度与硝酸根离子质量体积比存在负相关性，与铵根离子质量体积比和有机碳质量分数存在正相关性。
갑완시일충중요적온실기체，수연목전대기중함량원소우이양화탄，단배방증장솔각대우후자。연구구역위상해시황포강지류소주하화정포하，통과실험수거대비성교춘하적갑완배방적차이，탐토갑완산생적궤제급기여배경인자적관계，저장유조우연구하류갑완배방대우배경변화적영향。연구결과인위하류갑완주요래원우수중침적물，기산생여수질、온도등인소상관；동시갑완마이농도여초산근리자질량체적비존재부상관성，여안근리자질량체적비화유궤탄질량분수존재정상관성。
Methane is regarded as one of significant greenhouse gases .Although methane content in the air is far less than that of carbon dioxide , the growth rate of the former is more than the latter .Two tribu-taries, Suzhou River and Dingpu River , are chosen as the study area .By comparison analysis of experi-mental data , this paper discusses the mechanism of methane generation and correlation associated with some environmental factors , which can be helpful to study the impact of the methane discharge on envi-ronmental change .The results show that methane mainly comes from the sediments in the river and its generation is correlated with water quality and temperature .And methane in the river has a negative corre-lation with ammonium salt and organic carbon ,and a positive correlation with the nitrate .