搜索结果: 1-15 共查到“土壤学 forest”相关记录25条 . 查询时间(0.203 秒)
Evaluating the effect of biological stabilization on landslide control at the edge of forest road
sliding area stabilized area alder trees soil mechanics benchmarking
2018/3/6
Landslide is one of the negative sides of building non-standard roads in forest areas. The aim of the present study
was to assess the effect of biological stabilization on landslide at the edge of fo...
Comparison of different erosion control techniques in the Hyrcanian forest in northern Iran
best management practices runoff skid trail soil loss water bar
2018/3/6
The aim of this study was to evaluate the effects of closure best management practices (BMPs) on runoff volume and
soil loss on skid trails that received two densities of soil cover mats and were loc...
Degradation of Forest Soils in the Vicinity of an Industrial Zone
acidification contamination toxic elements
2015/7/28
Soils of the study area are acidified and the surface enrichment with Cd, Cu,
Pb, and Zn reflects anthropogenic contamination. Two forms of all PTEs were evaluated: potentially mobilized
(2M ...
Considering the soil compaction status on logging areas in a Hyrcanian forest
cutting area slope timber harvesting tree volume
2015/5/18
This paper deals with the issue of soil compaction during timber harvesting operations on cutting areas.
Soil compaction was assessed following the logging operation in Darabkola forest area by meas...
Toledo, the southernmost district, is the hub of Belize’s Mayan population, descendants of the ancient Mayan civilization. The Toledo District is primarily inhibited by Kekchi and Mopan Mayans whose...
Analysis of operational approach during forest transformation in Klokočná Range, Central Bohemia
stand transformation harvest diameter distribution De Camino homogeneity Lorenz ordering Gini index Shannon evenness index
2015/5/6
Afforestation of agricultural lands may be in many cases a positive step. Especially, it is a beneficial with waterlogged soils, stony soils or for soils which are for any other reason less fertile an...
Sorption of heavy metals in organic horizons of acid forest soils at low added concentrations
acidic soils adsorption desorption organic matter risk elements
2015/3/13
The individual adsorption/desorption of Cu, Pb, and Zn in six soil samples taken from organic horizons of acid forest soils is studied in batch experiments. These three metals were chosen because of t...
Modelling the impact of acid deposition on forest soils in North Bohemian Mountains with two dynamic models: the Very Simple Dynamic Model (VSD) and the Model of Acidification of Groundwater in Catchments (MAGIC)
air pollution Black Triangle historical deposition long-term modelling mass balance soil solution soil chemistry
2015/3/13
Enormous acid deposition that culminated in the 1970s contributed largely to accelerate the process of acidification of soils in northern Bohemia. As a consequence a wide forest decline occurred short...
Fluctuations in the properties of forest soils in the Central European highlands (Czech Republic)
acidification cyclometric functions forest ecosystem soil chemistry time-series
2015/3/10
Fluctuations in forest soil properties were described using a time series analysis of the clay content, the chemical (CaO, MgO, Corg, and Ntot) and physicochemical (pH and base saturation (BS)) soil p...
Mapping the topsoil pH and humus quality of forest soils in the North Bohemian Jizerské hory Mts. region with ordinary, universal, and regression kriging: cross-validation comparison
Black Triangle digital soil mapping geostatistics map accuracy
2015/3/9
North Bohemia belongs to one of the most heavily industrialized and polluted regions in Europe. The enormous acid deposition which culminated in the 1970s has largely contributed to the accelerated ac...
Acidification of forest soils in the Hruby Jeseník region
acidification Hruby Jeseník kriged maps soil properties survey spatial distribution
2015/3/3
The Hruby Jeseník Natural Forest Region (NFR) is a border mountain territory which belongs to the areas most heavily impacted by air pollution in the Czech Republic. This paper compares results for so...
The impact of artificial drainage on water quality in two model areas in the bohemian forest foothills
water quality tile drainage land use soil
2015/2/4
This contribution arises from a broader research assignment dealing with the changes in soil properties and characteristics which have occurred following the artificial drainage of some agricultural s...
Variability of water repellency in sandy forest soils under broadleaves and conifers in north-western Jutland/Denmark
critical surface tension Denmark forest soils hydrophobicity water drop penetration time water repellency
2015/2/3
Soil water repellency has important consequences for ecological and hydrological properties of soils and usually retards infiltration capacity and induces preferential flow. This phenomenon has been k...
Molecular size distribution and hydrophilic and hydrophobic properties of humic acids isolated from forest soil
forest soil humic acids HPSEC hydrophobic fractions hydrophilic fractions
2015/1/30
The aim of the present paper was to determine hydrophilic and hydrophobic properties and the degree of polydispersity of humic acids depending on their degree of maturity and the properties of the pla...
Altitude and forest type effects on soils in the Jizera Mountains region
forest soils altitude forest type beech spruce elevation transects
2015/1/30
This paper is focused on the Jizera Mountains as a region strongly influenced by man in the past. The structure of the natural forest was changed. Species monocultures with similar tree ages were plan...