CAJ | 학술논문

净耕地系数测算是土地利用现状调查中一项极其重要的工作,其目的是提高耕地面积调查的精度.通过对遥感影像数据进行目视解译,扣除各种细小地物,得出了基于遥感的净耕地系数,通过实地调查验证,得出了如下结论:利用遥感影像获取的净耕地系数与实地抽样调查荻取的净耕地系数的相似度大都在95%以上,即由遥感影像获取的净耕地系数与真实值之间极其接近,数据的可靠性好;玛纳斯河流域耕地的总体垦殖水平较高,其中莫索湾灌区净耕地系数最高,为0.921 6,新疆生产建设兵团农八师136团灌区系数最低,仅为0.671 5;研究区内耕地的利用率与当地的地貌类型、母质与土壤类型、田块面积大小、破碎程度与平整程度、垦殖水平及人口密度等自然、人为条件密切相关.图3,表3,参13.
정경지계수측산시토지이용현상조사중일항겁기중요적공작,기목적시제고경지면적조사적정도.통과대요감영상수거진행목시해역,구제각충세소지물,득출료기우요감적정경지계수,통과실지조사험증,득출료여하결론:이용요감영상획취적정경지계수여실지추양조사적취적정경지계수적상사도대도재95%이상,즉유요감영상획취적정경지계수여진실치지간겁기접근,수거적가고성호;마납사하류역경지적총체은식수평교고,기중막색만관구정경지계수최고,위0.921 6,신강생산건설병단농팔사136단관구계수최저,부위0.671 5;연구구내경지적이용솔여당지적지모류형、모질여토양류형、전괴면적대소、파쇄정도여평정정도、은식수평급인구밀도등자연、인위조건밀절상관.도3,표3,삼13.
The measurement of net arable land coefficient is of great importonce in investigating the status of land-use, aiming at improving ac-curacy of the area survey. The net arable land coefficient was measured by visual interpretation of the remote seining images, eliminating kinds of tiny ground objects. Through the field investigation, some conclusions were reached as follows: the similarity of net amble land coefficient amounts to 95 % between the analysis of the remote sensing images and field sample survey, which means the remote sensing data are very near to true values. The overall reclamation levels highly in Manas River Basin. The Mosuowan has the highest net arable land coefficient as 0.921 6, and Xinjiang 136 Construction Corps has the lowest only as 0.671 5.The utilization rate of arable land within the research region has close relationship to natural or artificial conditions such as landform types, soil types, field size, fragmentation degree, reclamation degree, popula-tion density and so on.