Generally, there are two distinct conservation targets and approaches: 1) conservation of seminatural environment by maintaining anthropogenic disturbance, and 2) conservation of natural environment by regulation of anthropogenic disturbance. Effective combination of them is necessary for a national plan of biodiversity conservation in Japan in “the era of depopulation.” Because the effects of non-residentialization and abandonment of management on biodiversity may differ from region to region, large-scale evaluation of the impact of population decline on biodiversity, based on elucidation of the driving factors, is required to implement the plan.
We demonstrate the change in land cover and vegetation heights in non-resident settlements after the abandonment throughout the country, and clarify the pattern of forest succession inhibition at agricultural land and the causes. In addition, based on the comparison of organisms in the non-residential and residential villages in each site, we will specify the areas where non-residency have negative and positive effects on local species richness and analyze the factors. From these results, we will construct future scenarios of biodiversity and landscape structure corresponding to population scenarios and climate change scenarios.
We will set up three sub-themes corresponding to the above three objectives.
|FUKASAWA, Keita（Center for Environmental Biology and Ecosystem Studies, NIES）|
|YOSHIOKA, Akira（Fukushima Branch/Center for Environmental Biology and Ecosystem Studies, NIES）|
|TAKENAKA, Akio（Center for Environmental Biology and Ecosystem Studies, NIES）|
|OGUMA, Hiroyuki（Center for Environmental Biology and Ecosystem Studies, NIES）|
|KUBO, Takahiro（Center for Environmental Biology and Ecosystem Studies, NIES）|
|MIYASHITA, Tadashi（Department of Ecosystem Studies, The University of Tokyo）|