OPERATION TIME CONSUMPTION OF HIGH-POWERED HARVESTER IN SALVAGE FELLING
Journal Title: ELECTRONIC JOURNAL OF POLISH AGRICULTURAL UNIVERSITIES - Year 2010, Vol 13, Issue 4
Abstract
In the Czech Republic, harvester technologies represent the second most-frequently used technology. Demand for high efficiency in this type of technology is conditioned by the need to cover acquisition and operation costs. The aim of this study is to monitor operation time of a high-powered Ponsse Ergo harvester. Felling process in the course of salvage felling was analyzed with the help of continuous chronometry. The analysis was conducted for harvesting of spruce ranging from 0.05–2.00 m3/stem. Operation time consumption for the processing of a tree ranges from 62 s to 171 s in relation to the respective tree volume, which represents 0.02–0.24 h/m3 of operation time.
Authors and Affiliations
Jiří Dvořák
ASYMMETRY OF MALE GONAD OF THE SEA TROUT (SALMO TRUTTA TRUTTAL.) IN THE FIRST YEAR OF LIFE
Paired gonads occur in the majority of teleostean fish species. In females a greater mass and fertility of the left one ovary has often been reported, while much less attenti on has been devoted to a comparative analysis...
INFLUENCE OF LACTOBACILLUS RHAMNOSUS GG METABOLITES ON GROWTH OF PERIODONTAL DISEASES BACTERIA
Taking into consideration biochemical and physiological properties and previously obtained results, it was decided to determine the influence of Lactobacillus rhamnosus GG (L.GG) metabolites on in vitro growth of selecte...
EFFECTS OF WILD BOARS MEAT OF DIFFERENT SEASON OF SHOT ADDITION ON TEXTURE OF FINELY GROUND MODEL PORK AND BEEF SAUSAGES
Meat structure and the effects of wild boars of 40 kg carcass weight shot during spring and winter meat addition on texture,sensory properties and thermal drip of finely ground model meat products manufactured of meat di...
LONG-TERM CULTIVATION OF AN AEROBIC GRANULAR ACTIVATED SLUDGE
Aerobic granules were cultivated in a sequencing batch reactor (SBR) fed with sucrose as a sole carbon source at superficial upflow air velocity of 1.9 cm/s and under an organic loading rate (OLR) of 2 g COD/L.d. This st...
MORPHOMETRIC ANALYSIS OF EARLY MEDIEVAL DOG SKULLS FROM POMERANIA ALLOWING FOR FOREHEAD POSITION INDEX AND DORSAL NOTCH OF THE FORAMEN MAGNUM
The study aimed at analysis of the metric traits of historic dog skulls allowing for the value of forehead position index as well as the presence or the lack of dorsal notch in the foramen magnum. Examinations included 2...