This book investigates radiocesium movement in all major components of forest ecosystems, e.g. the plants, animals, insects, microorganisms, and soils, during the initial stage of contamination after the incident at Fukushima Daiichi Nuclear Power Plant. Most of the work was conducted at a common research site. More specifically, the book examines the contribution of surface uptake by trees in the dynamics of radiocesium during the initial contamination stage; the movement of radiocesium in the form of small organic fragments that are essential to the radiocesium dynamics in forest ecosystems; and the upward movement of radiocesium due to microorganism activity, which promotes the effective decontamination of the forest floor. Lastly, it explains why spiders could be a valuable indicator of the contamination level in forest ecosystems.

This book examines social and natural environmental changes in present-day Laos and presents a new research framework for environmental studies from an interdisciplinary point of view. In Laos, after the Lao version of perestroika, Chintanakaan Mai, in 1986, for better or worse, rural development and urbanization have progressed, and people's livelihoods are about to change significantly. Compared to those of the neighboring countries of mainland Southeast Asia, however, many traditional livelihoods such as region-specific/ethnic-specific livelihood complexes, which combined traditional rice farming with a variety of subsistence activities, have been carried over into the present in Laos. The biggest challenge this book presents is to elucidate livelihood strategies of people who cope successfully with both social and environmental changes and to illustrate how to maintain this rich social and natural environment of Laos in the future. The book includes chapters on social, cultural, and natural concerns and on ethnicity, urbanization, and regional development in Laos. All chapters are based on original data from field surveys. These data will greatly contribute not only to local studies in Laos but also to environmental studies in developing countries.

This book investigates radiocesium movement in all major components of forest ecosystems, e.g. the plants, animals, insects, microorganisms, and soils, during the initial stage of contamination after the incident at Fukushima Daiichi Nuclear Power Plant. Most of the work was conducted at a common research site. More specifically, the book examines the contribution of surface uptake by trees in the dynamics of radiocesium during the initial contamination stage; the movement of radiocesium in the form of small organic fragments that are essential to the radiocesium dynamics in forest ecosystems; and the upward movement of radiocesium due to microorganism activity, which promotes the effective decontamination of the forest floor. Lastly, it explains why spiders could be a valuable indicator of the contamination level in forest ecosystems.