CAJ | 학술논문

　　快速、准确地测定植物叶面积对于开展植物生理生化和植物滞尘能力等方面的研究具有重要的意义。为此，应用3种不同的方法（数字图像处理法、方格法和称重法）对乌兰布和沙漠绿洲防护林体系3种杨树（新疆杨、小叶杨和二白杨）的叶面积进行了测定，并对3种方法的测定结果进行了比较分析。结果表明：数字图像处理法与其他两种方法的测定结果具有极显著正线性相关关系（ R 2＝0．9975～0．9998）。数字图像处理法能够准确地测定植物叶面积，具有省时、省力的优点。因此，该方法在植物叶面积测定工作中值得推广与应用。
　　쾌속、준학지측정식물협면적대우개전식물생리생화화식물체진능력등방면적연구구유중요적의의。위차，응용3충불동적방법（수자도상처리법、방격법화칭중법）대오란포화사막록주방호림체계3충양수（신강양、소협양화이백양）적협면적진행료측정，병대3충방법적측정결과진행료비교분석。결과표명：수자도상처리법여기타량충방법적측정결과구유겁현저정선성상관관계（ R 2＝0．9975～0．9998）。수자도상처리법능구준학지측정식물협면적，구유성시、성력적우점。인차，해방법재식물협면적측정공작중치득추엄여응용。
Quickly and accurately measuring leaf area of plant is of great important in research of plant physiology and bi -ochemistry and dust detentions capability , etc.This study applied three methods ( digital image processing method ,square method,weight method) to calculate leaf area of three poplar ( Populus alba L.var.pyramidalis Bge.; P.simonii Carr.;P.gansuensis C.Wang et H.L.Yang) of shelter forest system in Ulan Buh Desert oasis and also did a compara-tive analysis about calculating results between these three methods .Results are as follows:the result obtained by digital image processing method which had the advantage of time and effort saving was remarkable positively related to other two results (R2=0.9975~0.9998).Therefore, the digital image processing method was thought to be able to accurately calculate the leaf area of plant , and worthy of being popularized and applied .