Four variations of the fell-and-burn technique, a system developed to produce mixed pinehardwood stands in the Southern Appalachian Mountains, were compared in the Piedmont region. All variations of this technique successfully improved the commercial value of low-quality hardwood stands by introducing a pine component. After six growing seasons, loblolly pine (Pinus taeda L.) occupied the domin...

forests are an important economic source for human and have key role in nutrient cycle, hydrology and ecosystem performance, any interference in this vital ecosystem causes to damage to forests. mechanical logging and road construction in forest areas have led to much soil compaction. soil physical and chemical properties were studied in parts of road and non-road in the darabkola forest of ira...

The population growth of Brown Kiwi Apteryx mantelli was measured under four different management regimes: unmanaged, predator trapping, predator poisoning, and Bank of New Zealand Operation Nest Egg (BNZONE) — the removal of eggs for artificial incubation and return of resultant subadults to the wild. Life table analysis revealed that high adult mortality (7.3% per annum), caused mainly by dom...

Ageing and competition reduce trees’ ability to capture resources, which predisposes them death. In this study, the effect of senescence on survival probability Norway spruce ( (L.) Karst.) was analysed by fitting alternative models. Different model formulations were compared in dataset, comprised managed unmanaged plots long-term forest experiments Finland Norway, as well old-growth st...

carbon sequestration in soil, leaf and litter of three tree species, viz. eucalyptuscamaldulensis, prosopisjuliflora and ziziphus spina-christi, plantation was investigated in the dehloran city, iran. results showed that the amount of sequestered c in leaf, litter and soil was significantly different among these species. the highest amount of sequestrated c was in leaf and the lowest amount in ...

Accurate estimates of canopy base height (CBH) and bulk density (CBD) are critical inputs for many fire modeling simulation programs. Commonly used LANDFIRE CBH CBD only available at 30 m resolution have relatively low accuracy, traditional field-based can lead to inaccurate spatial by assuming averages across extents. Discrete-return airborne light detection ranging (lidar) has become increasi...

Forest productivity is a key driver of forest growth and yield critical information need for management planning. Traditionally, this has come from field plots, but these are expensive to measure have limited coverage. Remote sensing, on the other hand, can provide inventory attributes landscape scales with relatively low cost. A common predictor site index (SI), traditionally estimated age hei...