2015 研究助成 Research Grant Program  /  (B)個人研究助成  (B) Individual Research Grants
(Grant Number)
(Project Title)
Development of Management Methods to Conserve Cymbidium Goeringii in SATOYAMA: Clarification of its inhabiting processes and scientific verification after improvement of SATOYAMA by tree thinning
Hiroyuki Kurokochi
Asian Natural Environmental Science Center, The University of Tokyo
(Grant Amount)
企画書・概要 (Abstract of Project Proposal)


SATOYAMA is a Japanese term and means a forest area located close to residential districts. In the SATOYAMA management by citizen groups, scientific evidences should be considered to some extent, so that they can benefit from it. Cymbidium goeringii is a typical forest floor plant in SATOYAMA, but its population sizes have been decreasing, because most citizens abandon the administration of SATOYAMA and its environmental condition is degrading for C. goeringii; for examples, nutrient-rich soil and low-intensity light. In the present study, I aim at developing management methods in order for C. goeringii to keep on inhabiting at Kamimaki-SATOYAMA, Nagano prefecture, Japan, with co-sponsorships of a citizen group operating there. At first, we will investigate the reproduction dynamics of C. goeringii through population genetic and ecological analyses. In addition, we will demonstrate how tall trees grow up with a stem analysis, and how a secondary forest regenerates and its surroundings change after tree thinning treatments in quadrats established in SATOYAMA. Moreover, cost and benefit analysis will be done for using wood biomass of tall trees in a sustainable way. By combining each of the results, we will discuss and suggest sustainable management methods to conserve C. goeringii in Kamimaki-SATOYAMA.

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