土壤养分变化对红花槭叶绿素含量的影响

Effect of Soil Nutrition Change on Chlorophyll Content of Acer rubrum

研究了3种不同肥料配方的3个浓度梯度对土壤养分变化的影响,及其对红花槭叶绿素含量的影响。结果表明：施肥提高了土壤的EC值,降低了土壤的pH值,使土壤的养分含量明显增加,处理效果一般为高浓度〉中浓度〉低浓度;施肥增加了红花槭叶片叶绿素a、叶绿素b和总叶绿素含量,增加幅度分别为12.6%-21.3%,4.4%-16.3%和10.5%-20.1%,不同的处理对叶绿素含量的影响不同,以Ⅰ2、Ⅲ3、Ⅱ1处理效果较佳;土壤肥力的提高尤其是土壤中N含量的增加,促进了植物光合色素的合成,进而提高植株的光能固定能力。

Experiment on effect of 3 kinds of fertilizer with 3 different concentrations on soil nutrition and on chlorophyll content of Acer rubrum indicated that the treatment could augment nutrition content of the soil with increase of EC and reduction of pH. The treatment increased chlorophyll A, B and total chlorophyll content of A. rubrum by 12.6% - 21.3%, 4.4% - 16.3%, and 10.5% - 20.1%. Increase of soil fertility, especially N content could promote photosynthetic ability as well as light fixation.