環境

学術研究成果リスト

Detail of Grant Awarded Academic Researches

Project

Plant species diversity of semi-natural grassland and its spatiotemporal change in the upstream of Tamagawa river

Academic
Research
No.350
Principal
Investigator
Nobuo IMAI
Affiliation
(at that time)
Tokyo University of Agriculture,Associate Professor
Research
Summary

We studied the land-use legacy effects on plant species and phylogenetic diversity in semi-natural grassland in Kosuge village at the upstream of Tamagawa river.

Traditional semi-natural grassland drastically declined from 1940’s to present.

By contrast, the area of the semi-natural grassland which has been cultivated, abandoned, and managed for various agricultural purposes has increased.

Plant, rare-species, and phylogenetic diversity were substantially higher in the traditional than in the “previously-cultivated” grassland. Seed bank of rare species was absent in the “previously-cultivated” grassland, indicating that the dispersal limitation of rare species may contribute to low diversity in the grassland.


Collaborators

Taku KATO

Hijiri SHIMOJIMA

Reiko MACHIDA

Shigeyuki MIYABAYASHI


Full Text