The Amount of Stemflow and Throughfall by the Rainfall in Pinus densiflora Forests

概要

論文の詳細を見る
This study is carried out to estimate the buffering capacity and self-purification of Pinus densiflora forests. The quantity and quality of rainwater stemflow and throughfall are analyzed to compare with one another. Since rainwater is a source of stemflow and throughfall, their amounts are strongly influenced by the amount of the rainfall input to forests. So, we try to figure out the quantitative changes of stemflow and throughfall that are presented by the quantitative fluctuation of rainfall, defining the rainfall factor as an independent variable and stemflow and throughfall as the dependent variables. The rainfall factor is divided into two variables ; rainfall amount and intensity for statistic analysis. Referring to the results of stemflow and throughfall, their amounts do not increase at the same rate with the increments of rainfall amount and intensity in an absolute value. We assume that there are some complex interactions between rainfall amount and intensity for producting the stemflow and throughfall. And then multi-regression analysis is made by using two factors as independent variables ; the rainfall amount and intensity. The results are Y1 = 17.58X1 + 609.53X2 -565.68 (R^2 =0.5863), Y2 =104.75X1 + 83.93X2 + 406.97 (R^2=0.5265)(Y1 : Throughfall, Y2 : Stemflow, X1 : Rainfall amount, X2 : Rainfall intensity). In the case of throughfall, both amount and intensity of rainfall are significant and rainfall amount is more correlated with throughfall than rainfall intensity. It is proved that output of stemflow is correlated not with rainfall intensity but with rainfall amount.
日本雨水資源化システム学会の論文

The Amount of Stemflow and Throughfall by the Rainfall in Pinus densiflora Forests

スポンサーリンク

概要

著者

関連論文

スポンサーリンク