基于Landsat TM遙感數(shù)據(jù)的山核桃產(chǎn)量預(yù)測——以浙江臨安市為例
[Abstract]:Taking pecan in Linan City, Zhejiang Province as the research object, based on the measured yield of four consecutive years from 2008 to 2011, Landsat TM remote sensing data of 4 growing periods per year were used. The relationship between vegetation index and yield in each growing period was analyzed and compared systematically. The results showed that the correlation between the yield and the yield was the highest in each growth period, and the correlation between SAVI and yield was the lowest. Based on NDVI of each period, the prediction model of pecan yield in different periods was established. The predicted effects of the models were flower bud differentiation during fruit expansion and dormancy from picking to falling leaves at pollination stage. Based on NDVI of different periods, a multi-factor prediction model of pecan yield was established by stepwise regression. The optimal prediction model is YP126.51 _ (xS _ 2) 26.61 _ (xStu1) 12.56 _ (xSt3) -67.42 (RP2O0.642SEEEN 12.17), which provides a feasible, rapid and effective method for predicting the yield of pecan.
【作者單位】: 國家林業(yè)局調(diào)查規(guī)劃設(shè)計院;安徽農(nóng)業(yè)大學林學與園林學院;
【基金】:國家高技術(shù)發(fā)展計劃(863計劃)(2013AA102605) 國家自然科學基金(31170637)
【分類號】:S127;S664.1
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