关键词: 侧柏, 侧柏, 古树叶片, 矿质元素, 健康状况

Abstract: As the rapid promoting of our railway construction, the development of Chinese railway have made significant progress, however, ecological influence and land destruction have been caused by the temporary engineering of railway construction, the recovery of the land ecological function become more and more important. How could we recover the temporary land use in railway construction efficiently, the proper land reclamation suitability evaluation is significant to ecological restoration. This research, for example, the land reclamation of constructing new railway from Lianyungang to Yancheng, by the way of together extreme condition method with sum of index method, we could build appropriate evaluation index system and evaluation standard, so as to determine the evaluation grade of main limiting factor, provide the scientific reference for the determining the final land reclamation direction.