Simulated Acid Rain On The Shape Of Oak And Elaeocarpus Decipiens Bald Disc And Optical Response Characteristics

This study chose two kinds of subtropical common tree, stone oak and blueberry tree. Theexperimental process, the plant in several different treatment: only on plant outcrop plants acid rainspray, only on plant soil part irrigating, on plant whole spray, spray water to plants. The concentrationof the acid rain we are simulated respectively several concentration pH2.5, pH4.0, pH5.6, and set up aset of blank control group. The American Li-Cor6400photosynthetic apparatus, for the determinationof plant, the net photosynthetic rate, stomatal conductance, intercellular CO2concentration,transpiration rate, etc.The experimental results show that plant height, for blueberry tree speaking, from the differenttreatment, can be seen in all tube processing mode can be faster to promote blueberry tree plant heightgrowth, from different concentration can be seen in pH4.0simulation, pH2.5and concentration of acidrain blueberry tree plant height growth, promote have obvious influence on the growth. For stone oak,different treatment soil treatment in ways that make stone oak growth faster, different concentration,pH4.0and pH5.6to stone oak influence on plant height, promote its growth. The differentconcentration of stone oak character, pH2.5simulated acid rain concentration on the photosyntheticindexes stone oak influence is the largest, the most significant, and promoted the stone oakphotosynthesis. In different processing mode, soil treatment methods on stone oak influence is themost significant. Different concentrations of blueberry tree display, pH2.5simulated acid rainconcentration of blueberry tree photosynthesis influence, the most significant is handled in differentways, the whole tube processing way for blueberry tree photosynthesis influence, the most significantis to promote the growth of the plant.