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采用相关分析和典型相关分析方法，对油菜低产林改造中各效应因于间及其与产量间的相关关系进行分析，表明：叶绿素含量、叶片中磷含量、单株果数、地面相对光强和土壤容重与产量关系密切；生态效应因子是通过影响生长效应因子，生长效应因子又是通过影响结实效应因子，进而影响油茶产量的。还采用灰色局势决策方法，对低改措施组合进行决策，结果是综合改造效应最显著，增产最明显。
Correlation analysis and canonical correlation analysis were used to analyze the correlation between the effects of different rapeseed low-yielding forests and their yield. The results showed that: the content of chlorophyll, the content of phosphorus in leaves, the number of fruit per plant, the relative light intensity on the ground And soil bulk density and yield are closely related; ecological effect factor is through the impact of growth-affecting factors, growth-affecting factors and through the impact of seed-setting effect factors, thus affecting the yield of Camellia oleifera. The method of gray situation decision-making was also adopted to make policy decisions on the combination of low-level reform measures. The result was the most significant effect of comprehensive transformation and the most obvious increase in production.