Productivity of harvesting and clearing of brushwood alongside forest roads
نویسندگان
چکیده
منابع مشابه
Deriving Forest Harvesting Machine Productivity from Positional Data
Automated production study systems will provide researchers a valuable tool for developing cost and impact models of forest operations under a wide range of conditions, making the development of true planning tools for tailoring logging systems to a particular site a reality. An automated time study system for skidders was developed, and in this study application of the system was compared to c...
متن کاملdetermination of culverts diameter in forest roads
construction of forest roads disorders the natural trend of water movement. it is vital to make ditch and cross line drainage culvert to prevent the area from being destroyed and conduct the water of streems and vallies. determination of culvert diameters depends on the information of area discharge, physiographic characteristic, vegetation cover and site land use. in order to determine the amo...
متن کاملthe effect of explicit teaching of metacognitive vocabulary learning strategies on recall and retention of idioms
چکیده ندارد.
15 صفحه اولeffect of postharvest application of chitosan and calcium chloride on decay and quality attributes of sweet cherry
چکیده ندارد.
15 صفحه اولpostnatal studies of bats (pipistrellus kuhlii and miniopterus schreibersii) & histomorphology and histochemistry studies of organs and diseases of (neurergus microspilotus and n. kaiseri)
1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
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ژورنال
عنوان ژورنال: Silva Fennica
سال: 2020
ISSN: 2242-4075
DOI: 10.14214/sf.10379