what is the difference between clear felling and selective logging?
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Clear-cutting is the process of cutting down all trees in an area of forest at once. ... With selective cutting, only some of the trees in an area of forest are cut down at any one time. The next time, a different age group or species of tree in the forest is harvested.
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Logging also directly impacts soil and hydrological cycles, as the reduction in tree cover leads to increases in water runoff and soil erosion. At the macro level, deforestation by logging results in a reduction of carbon sequestration capacity, which in turn contributes to climate change.
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Firelogs burn much cleaner than real firewood. They typically produce 70 percent less particulate matter, 85 percent less carbon monoxide and 50 percent less smoke. The Java-Log firelog is made of old coffee grounds and natural vegetable waxes. It burns brighter and hotter than sawdust-based firelogs.
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The main difference between recursive descent parsing and predictive parsing is that recursive descent parsing may or may not require backtracking while predictive parsing does not require any backtracking. Compilation process includes several phases.
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light or dark? Clear cutting oil is for high speed (machine) threading, dark cutting oil is for low speed (hand) threading.
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As you might expect, the main advantage of kiln dried logs is that they burn hotter and last longer than their seasoned counterparts. Because so much moisture has been removed from them, a greater proportion of their mass is burnable carbon, which is what allows each log to burn for longer.
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Logging and the Environment It can increase the harmful impact of wind and rain on local ecosystems; destroy the valuable wildlife habitat used by pine martins, caribou, and other animals; and cause soil to become dry and overheated, which may in turn increase the risk of fire or interfere with seedling growth.
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Today, we mostly use modern logging machinery – harvesters and forwarders – that ensure safer and more efficient operations. Harvester is a cutting and bucking machine, while a forwarder is used to transport timber from a felling area to a timber-yard on the roadside.
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35: What is the difference between standard log and extended log in LoadRunner? The standard log sends a subset of functions and messages sent during script execution to a log. ... Extended log sends a detailed script execution messages to the output log.
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Kill -9 generates a SIGKILL signal which won't check the state of the process and kills the process immediately. The major difference is SIGTERM(generated by Kill) can be ignored if the process is still to reach safe state(clear memory or similar activity) and the process may not be killed.
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The Difference is in the Cut Flat, or plain, sawn oak is the most common, most efficient, and most cost-effective way to cut a piece of lumber. ... Quarter sawn is a more time-consuming and waste producing - and therefore costly - process of cutting the lumber.
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Skimming is the name provided to a plastering method where a wall is plastered with a layer of thin coat. It is usually applied to an existing plaster to smooth the surface area. ... Another difference between skim and plaster is that plaster surface areas are constantly rough whereas a skimmed surface area is smooth.
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Because they're made from recycled materials, firelogs have been promoted as being more environmentally friendly than regular wood logs, and as producing less emissions, including carbon monoxide. ... However, firelogs don't produce as much of one of the most beneficial byproducts of burning wood: heat.
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The reason that logging is so bad for the climate is that when trees are felled they release the carbon they are storing into the atmosphere, where it mingles with greenhouse gases from other sources and contributes to global warming accordingly.
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Under the simple recovery model, unless some factor is delaying log truncation, an automatic checkpoint truncates the unused section of the transaction log. In contrast, under the full and bulk-logged recovery models, once a log backup chain has been established, automatic checkpoints do not cause log truncation.
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The difference between Clear and Opaque. When used as nouns, clear means full extent, whereas opaque means an area of darkness. ... When used as adjectives, clear means transparent in colour, whereas opaque means neither reflecting nor emitting light.
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When cutting this lumber at the sawmill, each log is sawed at a radial angle into four quarters, hence the name. Dramatic flecking is also present in red oak and white oak. Find out more. Rift sawn wood can be manufactured either as a compliment to quarter sawn lumber or logs can be cut specifically as rift sawn.