ied land had decreasedРabout 1 936 km 2 from 1987 to 1993 and kept a stable reversed situation in the overall statue,Рalthough there wer e some parts of the area had been suffered from a quick spread of desertifi-Рcation. Almost all of the reversed e from those areas where the shifting dunes haveРbeen fixed by reforestation and fencing for vegetation pr otecting. But the r eversed trend wasРnot so clear to those desertified land which was used for cropping and grazing, so that the e-Рconomic benefit bating desertification was not so encouragement. By this pr oject, weРbelieve that to make full use of the r emote sensing data for monitoring and assessing the de-Рsertification is one of the effective measure of quantitative research.РKey wor ds Remote sensing Desertification Mu Us Sandy Land
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