CAJ | 학술논문

以河套平原2000年和2006年遥感影像为数据源，应用遥感和 GIS手段，通过统计和空间分析，研究了该地区盐渍化土地动态变化，并对其变化的影响因素进行了分析。结果表明：从2000年到2006年，研究区盐渍化土地面积明显减少，年平均降低率为5.34%；轻度和中度盐渍化土地程度均有减轻，轻度盐渍化土地占总土地比例由10135%减少到6182%，中度盐渍化土地由4167%减少到1194%，重度盐渍化土地程度变化不明显，由5115%变为4196%。综合分析认为，土地盐渍化是多种自然环境条件(包括区域蒸降比、地下水埋深、包气带岩性)和人类活动共同作用下的综合产物，但与地下水矿化度没有明显的相关关系。
이하투평원2000년화2006년요감영상위수거원，응용요감화 GIS수단，통과통계화공간분석，연구료해지구염지화토지동태변화，병대기변화적영향인소진행료분석。결과표명：종2000년도2006년，연구구염지화토지면적명현감소，년평균강저솔위5.34%；경도화중도염지화토지정도균유감경，경도염지화토지점총토지비례유10135%감소도6182%，중도염지화토지유4167%감소도1194%，중도염지화토지정도변화불명현，유5115%변위4196%。종합분석인위，토지염지화시다충자연배경조건(포괄구역증강비、지하수매심、포기대암성)화인류활동공동작용하적종합산물，단여지하수광화도몰유명현적상관관계。
BasedontheremotesensingimagesofHetaoPlainin2000and2006,thedynamicvariationofsalinizationlandwasan2 alyzed using the combination of remote sensing and GIS technology and statistics and spatial analysis. The results showed that thesalinizationlandareahasreducedsignificantlyinthestudyareafrom2000to2006withanaverageannualdecreasingrateof 5.34%. The levels of light and medium salinization land have reduced. The ratio of light salinization land to the total land de2 creased from 10. 35% to 61 82%, and the ratio of medium salinization land to the total land decreased from 4167% down to 11 94%. H ow ever, the heavy salinization land level has not changed significantly w ith the ratio varying from 51 15% to 41 96%. Soil salinization is affected by the natural environment ( regional evaporation to precipitation ratio, groundwater depth, and va2 dose zone lithology) and human activities, but it does not have an obvious relationship w ith groundw ater salinity.