搜索结果: 1-15 共查到“林业基础学科 impact”相关记录19条 . 查询时间(0.296 秒)
Roads Impact Tree and Shrub Productivity in Adjacent Boreal Peatlands
boreal wooded peatlands resource access roads tree productivity dendrochronology
2024/1/23
Peatlands in the western boreal plains of Canada are important ecosystems as they store over two percent of global terrestrial carbon. However, in recent decades, many of these peatlands have been fra...
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...
Impact of Forest Roads on Hydrological Processes
flood forest road forest works road network runoff sediment soil stream
2024/1/12
The current review summarizes the knowledge generated by the recently published studies of the last twenty years, in the field of forest road networks, concerning the impact of forest road constructio...
How the Chicxulub impact gave rise to modern rainforests（图）
Chicxulub impact modern rainforests
2021/4/16
Tropical rainforests today are biodiversity hotspots and play an important role in the world's climate systems. A new U.S. National Science Foundation-funded study published in Science ...
Impact of plot size and model selection on forest biomass estimation using airborne LiDAR: A case study of pine plantations in southern Spain
airborne laser scanning forest inventory regression survey design genetic selection methods
2017/4/6
We explored the usefulness of LiDAR for modelling and mapping the stand biomass of two conifer species in southern Spain. We used three different plot sizes and two statistical approaches (i.e. stepwi...
The impact of juvenile tree species canopy on properties of new forest floor
afforestation agricultural land forest floor topsoil nutrients
2015/4/24
To keep forest soils fertile, forest practitioners plant mixed stands that are composed of both economically efficient trees such as conifers and soil-improving broadleaves. This is a mandated practic...
Impact of Scots pine admixture in European beech stand on dissolved organic carbon and nitrogen leaching from organic and humic horizons of Dystric Arenosols in Northern Poland
European beech Scots pine leaching carbon cycling nitrogen cycling
2015/4/14
The effect of Scots pine admixture in European beech stand on the leaching of dissolved organic carbon (DOC), dissolved organic nitrogen (DON), nitrate nitrogen (NO3-N) and ammonium nitrogen (NH4-N) f...
Visible foliar injury as a tool for the assessment of surface ozone impact on native vegetation: a case study from the Jizerské hory Mts
Jizerské hory Mts surface ozone validation visible symptoms
2015/3/19
Surface ozone is considered to be a very phytotoxic gaseous air pollutant. Its negative impacts at both the cell and the organ level have been shown, mainly as a result of experiments. However, the de...
Comparison of the impact of blue spruce and reed Calamagrostis villosa on forest soil chemical properties
Calamagrostis villos upper soil layers quality and quantity Jizersk?hory Mts
2015/3/16
The impact of blue spruce (Picea pungens) and reed Calamagrostis villosa) cover on quantity and quality of upper soil layers was investigated. The research was conducted in the Jizersk?hory Mts., Czec...
Final documents of forest management regulation in the Slovak Republic and their possible interdepartmental use for environmental impact assessment
information science information technologies
2015/3/3
Until now documents of the forest management regulation have been considered and used almost exclusively as materials of the particular sectors. Regulation No. 465/1991 of Ministry of Finance of the S...
Regional analysis of climate change impact on Norway spruce (Picea abies L. Karst.) growth in Slovak mountain forests
climate change impact tree ring radial increment
2015/3/3
The paper presents the results of a regional analysis of climate change impacts on Norway spruce growth
in the north-western part of Slovakia (Orava region). Radial increment was determined from nin...
Impact of soil conditioners on the growth of European ash (Fraxinus excelsiorL.) on dumps
TerraCottem Frisol Bio-algeen Silvamix Forte Cererit European ash soil conditioners reclamations dumps anthropogenic substrates survival rate and growth costs
2015/2/6
The effects of soil conditioners TerraCottem, Frisol, Bio-algeen and fertilisers Silvamix Forte and Cererit on the survival rate and growth of European ash seedlings until the stage called established...
Risk evaluation of the climatic change impact on secondary Norway spruce stands as exemplified by the Ktiny Training Forest Enterprise
climatic change Norway spruce risk evaluation health conditions
2015/2/2
The paper proposes a method of assessing the potential risks of the future development of stands in relation to a climatic change. To assess risks of the future development of a stand simple point sca...
Urban Forest and Tree Valuation Using Discounted Cash Flow Analysis: Impact of Economic Components
Urban Forest Benefits Costs Economic Components Discounted Cash Flow Analysis Arboriculture
2013/3/4
Discounted cash flow analysis is one of the standard methods used to value urban forests and trees. It involves calculating today’s value for all benefits and costs attributed to an investment; that i...
Impact of Different Spacings of Cooking Banana Intercropped with Rubber on Soil Fertility Attributes and Maturity Rate of the Trees in a Humid Forest Area of South Eastern Nigeria
Cropping System Nutrient Stock Dry Rubber Content Earth Warm
2013/3/4
The impact of four spacing of cooking banana (CB) within the immature rubber avenues on some soil fertility attributes, maturity rate of rubber trees and dry rubber content (DRC) during the initial si...