搜索结果: 1-15 共查到“stands”相关记录161条 . 查询时间(0.096 秒)
The Impact of Season on Productivity and Time Consumption in Timber Harvesting from Young Alder Stands in Lowland Poland
Alnus glutinosa commercial thinning season of timber harvesting productivity time consumption time study working time structure
2024/1/19
The purpose of this study was to establish the impact of season on productivity, labour consumption, and working time structure during timber harvesting from young alder stands (Alnus glutinosa Gaertn...
Influence of stand thinning and repeated fertilization on plant community abundance and diversity in young lodgepole pine stands: 15-year results
Biodiversity British Columbia Fertilization Forest management Lodgepole pine Plant productivity
2024/1/19
Enhanced forest productivity may provide the supply of wood fiber to keep pace with increasing global demand for wood products and the growing constraints on the harvestable land base imposed by measu...
Long-Term Soil Fertility and Site Productivity in Stem-Only and Whole-Tree Harvested Stands in Boreal Forest of Quebec (Canada)
forest biomass whole-tree harvesting soil productivity site quality index soil provinces
2023/12/19
Using residual biomass from forest harvesting to produce energy is viewed increasingly as a means to reduce fossil fuel consumption. However, the impact such practices on soil and future site producti...
Climate Effects on Black Spruce and Trembling Aspen Productivity in Natural Origin Mixed Stands
dynamic models height growth functions mixed effects models biotic and edaphic effects climate change site productivity
2023/12/6
Forest managers need site productivity estimates for tree species growing in mixed stands. Models developed in the past are generally for pure stands and don’t factor in the effects of climate change ...
Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia
forest ecosystem phytocoenosis soil cover organic carbon stock phytomass annual increase
2023/12/4
Mature forest ecosystems are the most considerable reservoir of organic carbon (OC) among terrestrial ecosystems. The effect of soil type on aboveground OC stocks and their annual increases (AI) of ov...
Effect of Species Composition on Growth and Yield in Mixed Beech–Coniferous Stands
mixed stand soil trophicity mean height dominant height species composition mean annual volume increment
2023/11/22
Research Highlights: In mixed stands, competitive and supportive relationships occur between trees, illustrated by their dendrometric characteristics. Background and Objectives: We investigated the ef...
Prediction of Wildfire Fuel Load for Pinus densiflora Stands in South Korea Based on the Forest-Growth Model
canopy fuel characteristics diameter distribution model forest management Pinus densiflora
2023/11/20
A prediction model was developed for the wildfire fuel load of Korean red pine (Pinus densiflora) stands with susceptibility to forest fire based on the forest-growth model. Furthermore, a time-series...
Effects of vegetation succession on soil microbial stoichiometry in Phyllstachys edulis stands following abandonment
vegetation succession soil microbial stoichiometry Phyllstachys
2024/5/10
Moso bamboo (Phyllostachys edulis) is China's most important economic bamboo species. With a continuous decline in the value of its shoots and timber and an increase in affiliated labor and production...
Energy potential of main forest-forming species of stands in the Northern Steppe, Ukraine
black locust Scots pine aboveground biomass carbon allocation age structure
2018/3/6
The study evaluated the energy potential of Scots pine and black locust stands within the Northern Steppe of Ukraine,
in forest plantations subordinated to the State Agency of Forest Resources (Ukrai...
Visual Attention Drawn To Meaning,Not What Stands Out（图）
Visual Attention Drawn Meaning Not Stands Out
2017/10/24
Our visual attention is drawn to parts of a scene that have meaning, rather than to those that are salient or “stick out,” according to new research from the Center for Mind and Brain at the Universit...
USE OF 3D TECHNOLOGIES WITHIN THE CONSERVATION OF THE ANCIENT WINDOWS OF THE BASILICA OF S. SABINA IN ROME. CONSTRUCTION OF EXHIBITION STANDS IN CARBON COMPOSITE ON A MILLED STRUCTURE
3-D milling 3-D modeling exhibition stands carbon fiber composite laser cleaning fragmented artifact counterforms restoration
2017/6/20
Rare and precious window elements from the Paleochristian Basilica of Saint Sabina in Rome, made of plaster gypsum with translucent selenite used as glass for light transmission, were discovered by An...
Importance of the first thinning in young mixed Norway spruce and European beech stands
pre-commercial thinning diameter distribution h/d ratio skewness kurtosis
2018/3/6
Experimental results from the first thinning in mixed stands are not broadly experienced by forestry practice. To extend
the experience with the thinning of a mixed stand, we studied thinned and unth...
Changes in the nutrition and health status of young Norway spruce stands in the Krkonoše Mts. in a 17-year period
mountain forest height increment defoliation nutrients stress elements nutrient ratio
2018/3/6
For 17 Norway spruce stands located in the Krkonoše Mts. in the Czech Republic a long-term assessment of defoliation,
height increment, foliage concentration of nutrients (N, P, Ca, K, Mg) and s...
Analysis of biomass in young Scots pine stands as a basis for sustainable forest management in Czech lowlands
nutrients nutrient-poor sites Pinus sylvestris L. crown stem roots
2018/3/6
Scots pine covers large areas on sandy soils in lowlands of the Czech Republic. These sites can be threatened by nonsustainable
biomass removal after clear-cutting. Totally 14 young pine stands at 14...
The root system of pedunculate oak (Quercus robur L.) at the margins of regenerated stands
forest regeneration stand margin edge effect tree morphology mortality microclimate
2017/4/6
The paper aims to contribute to the determination of reasons causing the irregular growth of young pedunculate oaks occurring at the margins of naturally and artificially regenerated plots neighbourin...