CAJ | 학술논문

以3期遥感图像为数据源,经图像处理,并结合野外考察,建立解译标志进行遥感解译.结果表明,开都河下游绿洲区的盐渍化土地面积呈先增加后减少趋势,盐渍化程度呈先加重后减轻趋势;盐渍化土壤主要分布在开都河沿岸低洼地和博斯腾湖湖滨地区及其北岸清水沟、曲惠渠、乌什塔拉渠两岸附近;盐渍化的形成与研究区地形地貌、地下水以及干旱的气候条件密切相关,人类农业活动对盐渍化土壤形成具有重要作用.
이3기요감도상위수거원,경도상처리,병결합야외고찰,건립해역표지진행요감해역.결과표명,개도하하유록주구적염지화토지면적정선증가후감소추세,염지화정도정선가중후감경추세;염지화토양주요분포재개도하연안저와지화박사등호호빈지구급기북안청수구、곡혜거、오십탑랍거량안부근;염지화적형성여연구구지형지모、지하수이급간한적기후조건밀절상관,인류농업활동대염지화토양형성구유중요작용.
Three temporal remote sensing images were used as the main sources of information. The images were processed in combination with field investigation. The results show that soil salinization of the land area had increased from 1973 to 1990,and then declined from 1990 to 2005;the extent of land salinization had increased from 1973 to 1990,and then decreased from 1990 to 2005. Land salinization is distributed around the low-lying areas of the Kaidu River, lakesides and Qingshui Drainage,Quhui Drainage and Wushitala Drainage on the north of the Bosten Lake. The land salinization was closely related to topography, groundwater and arid climatic conditions. Human agricultural activities have also played an important role in soil salinization.