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Prediction of Alkili-saline Information Based on NDVI of Rice Canopy
Author(s): 
Pages: 113-116,120
Year: Issue:  6
Journal: Bulletin of Soil and Water Conservation

Keyword:  alkali-saline soilNDVIsalt index;
Abstract: 通过测定不同盐碱化程度土壤上覆植被光谱特征和土壤的盐碱化指标,探讨了通过上覆植被光谱与土壤盐碱化信息的关系。试验结果表明,水稻冠层归一化植被指数(NDVI)从返青期到孕穗期逐渐增大,孕穗期达到最大,然后开始下降;水稻全生育期冠层NDVI与土壤表层全盐、电导率(EC)呈显著相关(相关系数平均分别为0.608 2和0.623 9),孕穗期相关性达到最强;除返青期外,其它时期水稻冠层NDVI与土壤Na+...
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