Visualization of a Suburban Area Climate using Yellow Leaves of Ginkgo

Abstract

The authors propose a simple observation method of a micro climate in a suburban area based on the plant indicator. Yellow leaves of gingko as a plant indicator act as a measure of environmental conditions. The authors observed and analyzed the yellow leaves of gingko planted in the suburbs of Tokyo (Tama Newtown), in autumn. The processes of the change to yellow leaves from green leaves are classified into simple patterns. From the results presented here, the authors propose the mathematical model of the change processes of the yellow leaves of gingko.