CAJ | 학술논문

利用IKONOS高分辨率（1 m）卫星遥感图，运用典型抽样和地形→土地利用→土地覆盖→综合信息提取的方法，选定了川中丘陵区代表区域，通过对研究区域农业生产情况、土样、水样和气象资料的调查和分析，利用DNDC模型模拟农户作物生产条件下稻田CO2、CH4和N2 O排放情况，在此基础上，通过改变目前的研究区域冬水田（PF）（PF占研究区域面积的58．07％）生产条件中的某一影响因子，进一步研究这一因子的改变对CO2、CH4和N2O排放的影响及全球增温潜势（GWP）变化情况。结果表明：氮肥种类和数量、有机肥种类和动物粪尿投入数量、晒田和不晒田、耕地深度、年平均气温变化、降雨量变化、土壤pH值变化、土壤有机质含量变化、土壤质地变化均对稻田温室气体排放有较为显著的影响。冬水田（PF）、水稻-油菜田（RR）和水稻-小麦田（RW）全年排放 CO2、CH4和N2 O的综合GWP：RW＞RR＞PF。
이용IKONOS고분변솔（1 m）위성요감도，운용전형추양화지형→토지이용→토지복개→종합신식제취적방법，선정료천중구릉구대표구역，통과대연구구역농업생산정황、토양、수양화기상자료적조사화분석，이용DNDC모형모의농호작물생산조건하도전CO2、CH4화N2 O배방정황，재차기출상，통과개변목전적연구구역동수전（PF）（PF점연구구역면적적58．07％）생산조건중적모일영향인자，진일보연구저일인자적개변대CO2、CH4화N2O배방적영향급전구증온잠세（GWP）변화정황。결과표명：담비충류화수량、유궤비충류화동물분뇨투입수량、쇄전화불쇄전、경지심도、년평균기온변화、강우량변화、토양pH치변화、토양유궤질함량변화、토양질지변화균대도전온실기체배방유교위현저적영향。동수전（PF）、수도-유채전（RR）화수도-소맥전（RW）전년배방 CO2、CH4화N2 O적종합GWP：RW＞RR＞PF。
Using the high resolution(1 m)IKONOS satellite and employing typical sampling and terrain→land use→land cover→comprehensive information extraction method,representative of the middle Jintang hilly area feature were selected .Detailed farmer investigations were carried out,including crop diversity,tillage,fertilizer,manure type,irri-gationsoil pH,meteorological data.Emissions of CO2,N2O and CH4 emissions of rice fields with farmers crop production conditions simulated using DNDC model .In-depth analysis of factors contributing to emissions of CO2,N2O,CH4,and global warming potential (GWP)was performed by changing a factor of production conditions of the winter water paddy rice field (winter paddy field area accounts for 58 .07%of the area of research)in the target area .The results show that nitrogen fertilizer,organic fertilizer number and variety types,animal dung urine into quantity,middle-stage drainage, depth of cultivated fields,average temperature,rainfall,soil pH,content of soil organic matter,soil texture have signifi-cant influence on greenhouse gas emissions in paddy field .GWP of CO2,CH4,and N2O emissions of one year from three kinds of paddy field-permanently flooded paddy fields (PF),rapeseed-paddy rice fields (RR)and winter wheat-paddy rice fields (RW)were in the order of RW>RR>PF .