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Refugee impact on collective management of forest resources: a case study of Bhutanese refugees in Nepal's Eastern Terai region
Informa UK Limited - Tập 11 - Trang 305-311 - 2006
This article analyzes the relationship between forest resources, refugees, and the host population. The findings of the research suggest that the host population are heavily dependent on the local forest for their daily needs such as fuelwood, timber, grazing area, fodder for domestic animals, foods, and medicine in addition to cultural and esthetic needs. The forest has also been relied upon for ......
Evaluation of the tortuosity parameter for forest soils to predict unsaturated hydraulic conductivity
Informa UK Limited - Tập 6 - Trang 221-225 - 2001
In order to accurately predict the unsaturated hydraulic conductivity for forest soils, we evaluated the tortuosity parameter for forest soils and investigated the relationships between the tortuosity parameter and parent materials and soil sampling depths. Undisturbed forest soil samples were taken from three parent material types: the granite group, Mesozoic-Paleozoic, and Quaternary. Samples ta......
Managing forest complexity through application of disturbance–recovery knowledge in development of silvicultural systems and ecological rehabilitation in natural forest systems in Africa
Informa UK Limited - Tập 15 - Trang 3-13 - 2009
How can we accommodate the diversity in tree species and sizes in mixed-species/size/age stands in the sustainable management of natural forests and woodlands in Africa for diverse timber and non-timber forest products and services, and during rehabilitation of degraded forests? The evergreen moist tropical to warm-temperate forests, from the equator to 34°S, generally function through relative sh......
Interception of photosynthetic photon flux density in a mangrove stand of Kandelia candel (L.) Druce
Informa UK Limited - Tập 9 - Trang 205-210 - 2004
The canopy structure and interception of photosynthetic photon flux density (PPFD) in a 10-year-old Kandelia candel (L.) Druce stand were investigated before and after artificial defoliation. Leaf and wood areas for different layers were measured through area-weight relationships of subsamples. PPFD was measured at specified heights before and after leaf clipping. The leaf area index (LAI) and woo......
Estimation of mean tree height using small-footprint airborne LiDAR without a digital terrain model
Informa UK Limited - Tập 16 - Trang 425-431 - 2010
In order to estimate mean tree height using small-footprint airborne light detection and ranging (LiDAR) data, a digital terrain model (DTM), which is a continuous elevation model of the ground surface, is usually required. However, generating accurate DTMs in mountainous forests using only the LiDAR data is laborious and time consuming, because it requires human-assisted methods, especially in th......
Erratum to: Coarse woody debris of Fagus sylvatica produced a quantitative organic carbon imprint in an andic soil
Informa UK Limited - - 2015
Long-term effects on tree regeneration of soil scarification with microtopography manipulation in mixed forests of central Hokkaido, northern Japan
Informa UK Limited - Tập 15 - Trang 328-336 - 2010
Natural regeneration of canopy tree species is generally poor under a selective cutting regime practised in mixed conifer–hardwood stands on Hokkaido, northern Japan, and is prevented by dense bamboo layers in the understory. To promote tree regeneration, we scarified soil in ten sites, with elevations ranging from 420 to 760 m, in 1979, with a rake-equipped bulldozer to produce three different ar......
Potential of soil seed banks in the ecological restoration of overgrazed floor vegetation in a cool-temperate old-growth damp forest in eastern Japan
Informa UK Limited - Tập 21 - Trang 43-56 - 2015
Damp forests are vulnerable ecosystems and have peculiar species compositions. Deer can cause severe damage to damp forest composition and structure. However, little is known about the effect of deer on soil seed banks of damp forests and the restoration potential of soil seed banks. I surveyed the compositions of the soil seed bank and floor vegetation both inside and outside a deer exclosure in ......
Isolation and characterization of 10 new microsatellite loci in the ambrosia beetle Platypus quercivorus
Informa UK Limited - Tập 16 - Trang 518-521 - 2010
The ambrosia beetle, Platypus quercivorus, is an insect vector for the causal agent of Japanese oak wilt disease, Raffaelea quercivora. We have developed 10 new polymorphic microsatellite markers from Type 1, one of the genetic types of the beetle, using a biotin-enrichment procedure. Fifty-three adult beetles were used for characterization of the markers. The number of alleles per locus ranged fr......
Erosive phenomenon in heavy snow mountainous regions in Japan
Informa UK Limited - Tập 7 - Trang 57-66 - 2002
This paper reviews the studies conducted in Japan on the erosion caused by snow cover movement and presents erosion control measures and future visions about forest management in heavy snow regions. Japan is one of the heaviest snowfall countries in the world, more than half of whose land is situated in heavy snow regions. In addition, a large part of this country has steep mountain sites. Because......
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