Soil displacement during ground-based mechanized forest operations using mixed-wood brush mats
نویسندگان
چکیده
منابع مشابه
Ectomycorrhizal mats alter forest soil biogeochemistry
Dense hyphal mats formed by ectomycorrhizal (EcM) fungi are prominent features in Douglas-fir forest ecosystems, and have been estimated to cover up to 40% of the soil surface in some forest stands. Two morphotypes of EcM mats have been previously described: rhizomorphic mats, which have thick hyphal rhizomorphs and are found primarily in the organic horizon, and hydrophobic mats, which occur i...
متن کاملNutrient Concentration on Skid Trails under Brush-Mats – Is a Redistribution of Nutrients Possible?
In mechanized timber harvesting, it is common practice to build brush mats from logging residues on skid trails. Protective effects of brush mats against soil compaction are documented by several studies. On the other hand, a large quantity of nutrients is concentrated on the skid trail. Fully mechanized harvesting has been criticized frequently for this reallocation of nutrients. Is there real...
متن کاملQuantifying the Use of Brush Mats in Reducing Forwarder Peak Loads and Surface Contact Pressures
Nacrtak Forest biomass from timber harvesting residues is often used during mechanized forest opera tions to improve trafficability of strip roads (machine operating trails). In particular, during cut-to-length operations brush mats from harvesting residues are created on operating trails to reduce rutting. However, forest biomass is becoming increasingly important as a source of renewable ene...
متن کاملSoil microbial responses to forest floor litter manipulation and nitrogen addition in a mixed-wood forest of northern China
Changes in litterfall dynamics and soil properties due to anthropogenic or natural perturbations have important implications to soil carbon (C) and nutrient cycling via microbial pathway. Here we determine soil microbial responses to contrasting types of litter inputs (leaf vs. fine woody litter) and nitrogen (N) deposition by conducting a multi-year litter manipulation and N addition experimen...
متن کاملAssessing the Ability of Hardwood and Softwood Brush Mats to Distribute Applied Loads
In cut-to-length mechanized forest harvest operations, trees are cut, delimbed, and bucked to standard lengths directly in the harvest block. This in-stand processing, generates harvesting residue composed of tree limbs, tops, and foliage, which is frequently placed on machine operating trails to prolong trail trafficability and protect forest soils against heavy loadings. These so-called brush...
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ژورنال
عنوان ژورنال: Soil and Tillage Research
سال: 2018
ISSN: 0167-1987
DOI: 10.1016/j.still.2018.02.005