搜索结果: 1-15 共查到“森林土壤学 forest”相关记录63条 . 查询时间(0.106 秒)
Root functional traits mediate rhizosphere soil carbon stability in a subtropical forest（图）
Root functional traits subtropical forest
2023/6/2
Plants can be classified as either resource-acquisitive or resource-conservative strategies based on their root traits. Compared with conservative trees, acquisitive trees produce larger amounts of re...
Carbon Feedback from Forest Soils will Accelerate Global Warming,26-Year Study Projects
Carbon Feedback Forest Soils Accelerate Global Warming 26-Year Study Projects
2017/10/25
After 26 years, the world’s longest-running experiment to discover how warming temperatures affect forest soils has revealed a surprising, cyclical response: Soil warming stimulates periods of abundan...
Effect of the skid trail cross section and horizontal alignment on forest soil physical properties
soil bulk density ground-based skidding cross slope Civil3D software Bahramnia forest
2017/6/26
Horizontal alignment and cross section characteristics of a skid trail in a ground-based skidding system including curves, wheel ruts and cross slope can impact on the forest soil. In this study the m...
Research on forest terrain roughness as a source of dynamic action on the vehicle
forest soils micro-profile correlation analysis power spectral density
2018/3/6
The issue of terrain conditions is very complex and its description is approached from different perspectives and with
different objectives. Because it consists of the gathering of basic information ...
Estimation of diameter at breast height from mobile laser scanning data collected under a heavy forest canopy
mobile mapping system clustering point cloud circle fit
2018/3/6
Mobile laser scanning (MLS) is time-efficient technology of geospatial data collection that proved its ability to provide
accurate measurements in many fields. Mobile innovation of the terrestrial la...
Forest park site selection based on a Fuzzy analytic hierarchy process framework (Case study:the Galegol Basin, Lorestan province,Iran)
suitability map weighted linear combination criteria decision-making Delphi method
2016/7/6
The aim of this study is to solve the forest park site selection problem using a Fuzzy analytic hierarchy process (FAHP) framework in the Galegol Basin, Lorestan province, Iran. The Delphi screening m...
Neutralizing acidic forest soils boosts tree growth,causes spike in nitrogen export
Neutralizing acidic soils tree growth causes spike nitrogen export
2016/7/4
A legacy of acid rain has acidified forest soils throughout the northeastern US, lowering the growth rate of trees. In an attempt to mitigate this trend, in 1999 scientists added calcium to an experim...
Detection of the effects of management and physical factors on forest soil carbon stock variability in semiarid conditions using parametric and nonparametric methods
soil organic carbon CART modelling, neural networks
2015/11/26
Forest soils in western parts of Iran are being degraded by inappropriate management. The soil organic carbon (SOC) stock was dominantly affected by this type of degradation. On the other hand, SOC is...
Effects of forest fragmentation on assemblages of pollinators and floral visitors to male- and female-phase inflorescences of Astrocaryum mexicanum(Arecaceae) in a Mexican rain forest
fl oral visitors palm pollination species richness
2015/11/13
We examined the consequences of habitat fragmentation on the assemblage of floral visitors and pollinators
to male- and female-phase inflorescences of the understorey dominant palmAstroca...
Differential diameter-size effects of forest management on tree species richness and community structure: implications for conservation
Differential diameter-size effects tree species richness
2015/11/13
In this paper we tested the hypothesis that logging effects in the adult tree
community reverberate upon the regeneration contingent. We examined the differences on
the tree community between forest...
Tropical Forest Fragmentation Affects Floral Visitors but Not the Structure of Individual Based Palm-Pollinator Networks
Tropical Forest Fragmentation Visitors
2015/11/13
Deforestation is the major cause of fragmentation and spatial isolation of populations in the
tropics [1], with potential to increase species or population extinction rates [1,2]. Despite the
import...
TOWARDS AN UNDERSTANDING OF UNCERTAINTY IN GREENHOUSE FOREST ASSESSMENTS
Remote Sensing Vegetation Land Cover Analysis Monitoring Global-Environmental-Databases
2015/7/29
Australia’s National Carbon Accounting System provides information on land-based sources and sinks of greenhouse gases to fulfil
international reporting obligations under the Kyoto Protocol, as well...
Effect of Oriental beech root reinforcement on slope stability (Hyrcanian Forest, Iran)
root distribution slope stability
2015/5/5
Vegetation significantly affects hillslope mechanical properties related to shallow landslides and slope
stability. The objective of this study was to investigate and quantify the effect of Oriental...
Norway spruce litterfall and forest floor in the IUFRO thinning experiment CZ 13 – Vítkov
forest-floor layers litterfall Norway spruce thinning
2015/4/24
The effect of thinning on litterfall and decomposition of biomass was investigated in Norway spruce IUFRO thinning experiment (CZ-13), Czech Republic. The experiment was established in 1971 in an 8-ye...
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...