Download or read book Impacts of Biomass Harvesting on Soil Disturbance and Surface Soil Erosion at Seller Creek in Interior British Columbia written by P. R. Commandeur and published by . This book was released on 1993 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous studies have documented the soil disturbance effects of ground-based harvesting systems. Biomass harvesting, in the form of the additional recovery of woody materials normally left on site, has the potential for increasing the levels of soil disturbance. The objective of this study was to document the impact of biomass harvesting by rubber-tired skidders on soils, namely soil disturbance and surface soil erosion. An increase in soil disturbance in the form of skid trails, skidroads, and deep and very deep gouges was observed on the biomass harvested plots compared to the conventionally harvested plots. Erosion bridges indicated more soil movement on the biomass than the conventional plots. Soil erosion volumes trapped behind sediment dams located at the base of the plots were greater on the biomass plots (average of 0.38 m3 over 1.77 years) than on the conventional plots (average of 0.22 m3). However, the unharvested plots also recorded accumulation of material where in fact no mineral soil erosion occurred (average of 0.15 m3). This was the result of vegetation growth and decay and the accumulation of organic matter. Adjusted average erosion values of 0.78 m3/ha/year for the biomass plots and 0.37 m3/ha/year for the conventional plots are comparable to data obtained from studies conducted on clearcut and burned sites in the Oregon Cascades. These erosion figures are considered moderate and numerous site factors help explain this observed response. Rainfall simulation experiments conducted at the site indicated that infiltration rates on skidroads and fireguards are generally greater than 1.5 cm/hour. Rainfall intensities (15 minute duration) that exceed 1.5 cm/hour are expected to occur with a return period of about 1 year at the study site. Spring snow melt rates may exceed infiltration capacities especially along compacted, low infiltration areas such as skidroads. Some overland flow and surface soil erosion is expected to occur elsewhere under similar conditions as those found at the study site. Recommendations are given regarding the measurement techniques used in this study.
Download or read book The Impact of Biomass Harvesting on Soil Disturbance and Soil Erosion written by Mark Walmsley and published by . This book was released on 1991 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Conservation Guidebook written by British Columbia. Ministry of Forests and published by . This book was released on 1995 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidebook provides guidance to forest workers on acceptable levels of soil disturbance in order to ensure that the physical, chemical, and biological properties necessary for maintaining the long-term productivity of forest soils are protected, maintained, or enhanced. The guidebook explains practices regarding permanent and temporary structures that give access to the forest (such as roads and buildings), indicates how much of a site can be occupied by such structures, and shows how to estimate the area occupied by those structures. The guidebook also recommends limits for soil disturbance within the net area to be reforested and forest floor displacement within that area.
Download or read book Current Abstracts written by and published by . This book was released on 1994 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Harvesting Methods on Soil Properties and Forest Productivity in Interior British Columbia written by J. P. Senyk and published by . This book was released on 1997 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Large scale Erosion and Flooding After Wildfires written by Michael Patrick Curran and published by . This book was released on 2006 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Soil Erosion and Sediment Control Planning System for Managed Forest Land written by William W. Carr and published by Forest Science Research Branch, Ministry of Forests. This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Long term Soil Productivity Study in British Columbia written by R. W. Holcomb and published by . This book was released on 1996 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main portion of this paper describes the implementation of the British Columbia Long-term Soil Productivity project, which is based on a comprehensive model that will provide information about the relative effects of soil compaction and the removal of site organic matter on tree growth. It reviews the history of the project and the scientific basis for the project studies, then describes the project sites and plot layouts, harvesting and site treatment methods, conifer regeneration studies, and three ancillary studies on the following subjects: ectomycorrhizal fungi, root development, and seedling nutrition; soil fauna; and soil atmosphere.
Download or read book Soil Conservation Surveys Guidebook written by British Columbia. Ministry of Forests and published by . This book was released on 2001 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes procedures for measuring disturbance to soil caused by forest practices.
Download or read book Effects of Bladed Skid Roads on Soil Properties and Early Tree Growth on Two Steep Slopes in the Southern Interior of British Columbia written by Graeme d'Egville Hope and published by . This book was released on 2001 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impact of Biomass Harvesting on Forest Soil Productivity in the Northern Rocky Mountains written by Woongsoon Jang and published by . This book was released on 2015 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomass harvesting extracts an increased amount of organic matter from forest ecosystems over conventional harvesting. Since organic matter plays a critical role in forest productivity, concerns of potential negative long-term impacts of biomass harvesting on forest productivity (i.e., changing nutrient/water cycling, aggravating soil properties, and compaction) have emerged. There is abundant prediction of long-term impacts of intensive biomass removal on forest productivity. However, the empirical knowledge and comprehensive understanding, especially on western forests, are limited thus far. Therefore, we utilize the available findings to evaluate potential impacts of increased biomass extraction on western forests. We compare biomass harvesting with natural disturbance regimes or conventional harvesting systems in terms of organic matter redistribution in order to evaluate the possible consequences of biomass harvesting on forest productivity. We review the role of organic matter on forest productivity and compare the organic matter redistribution or removal through biomass harvesting and natural disturbances or conventional harvesting to assess potential impacts. The summarized findings are: (1) the long-term impacts of intensive biomass harvesting will be mitigated by protection of the belowground organic matter; (2) biomass harvesting could result in the accelerated leaching of nutrients; and (3) immediate understory vegetation recovery can minimize potential negative impacts. Finally, sites sensitive to harvesting impacts (e.g., fine-textured soil and steep slopes) should be approached with caution and prior planning to minimize undesirable responses.
Download or read book Long term Soil Productivity Study written by Shannon Marie Berch and published by . This book was released on 2019 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Disturbance Guidelines written by Stephen C. Chatwin and published by . This book was released on 1991 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the workshop, covering sustainable development and forestry in British Columbia, harvest-related soil disturbance research, tree growth, site productivity research, use of selective logging, site preparation impacts, effects of various types of equipment, site degradation policy, public perceptions and expectations, implications on planning, soil rehabilitation and alternative policies.
Download or read book Basic Soil Interpretations for Forest Development Planning written by William W. Carr and published by . This book was released on 1991 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes basic interpretations using vegetation, environmental and soil properties to ascertain the inherent nature of the treatment unit, particularly about the risk associated with potentially degrading forestry activities.
Download or read book Maintaining Soil Productivity in Forest Biomass Chipping Operations Best Management Practices for Soil Conservation written by and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest harvesting operations that use portable chipping systems to generate biomass chips from logging residue are currently in use in British Columbia. Leaving deposits of residual materials after harvest has been completed can reduce productivity and affect soil hydrologic function. We summarize the research on the effects of chipped woody material accumulations, and then interpret these findings within the British Columbia context and provide guidance for best management practices to maintain long-term site productivity. Soils in cooler climates, on fine-textured soils, and/or with a high water table are at a greater risk of detrimental effects than well-drained, coarse-textured soils in warmer environments. Integration of conventional and biomass harvesting can reduce repeated equipment traffic on forest sites. Care should be taken to ensure that biomass harvesting operations do not result in site organic matter levels that are below requirements in existing guidance documents, guidelines, and regulations. Placing chipped material directly into containers used to transport chips to the processing facility, or using heavy tarps to create temporary chip storage containers can maximize biomass recovery and avoid creation of residual piles on future forest sites. To facilitate tree regeneration and forage production, large accumulations of materials need to be removed or redistributed so that the resulting soil mulch of woody material is discontinuous and preferably
Download or read book Forest Soil Rehabilitation in British Columbia written by Charles Ernest Bulmer and published by University of British Columbia Press. This book was released on 1998 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes issues and problems in forest soil rehabilitation in British Columbia, presenting an up-to-date review of the scientific literature and the activities of rehabilitation specialists and practitioners working for the forest industry and government. The focus is on techniques for restoring soil productivity, with the implied objective of re-establishing a productive forest ecosystem on a site that has suffered degradation. The first two sections of the report provide an overview of soil rehabilitation in the province and review the productivity of degraded and rehabilitated forest soils. This is followed by a section on soil physical process and nutrient cycling, describing how an understanding of growth-limiting conditions can guide practitioners to strategies for effective and cost-efficient rehabilitation. The next section reviews rehabilitation techniques, including tillage, topsoil conservation and replacement, reforestation and revegetation methods, and soil amelioration using fertilizers, amendments, and mulches. Finally, information gaps and research needs are identified.
Download or read book Ground Work written by Don Gayton and published by Kamloops, B.C. : Southern Interior Forest Extension and Research Partnership. This book was released on 2001 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
