منابع مشابه
A Stroll through the Forestry Maps and Plans – the History of Managing Croatian Forests Exhibition
KiG No. 26, Vol. 1 5, 201 6 88 melted in Rude, in a blast furnace with an annual capacity of 25,000 cents, one part ofwhich was transported to Slovenia. Annual production of iron ore was between 20,000 and 130,000 cents, while annual production ofiron was between 5,000 and 16,000 cents. The mine was closed in 1859 due to unprofitability. Twenty-six thousand tons ofore were extracted during the ...
متن کاملManaging Sierra Nevada Forests
Fire will continue to be a major management challenge in mixed-conifer forests in the Sierra Nevada. Fire is a fundamental ecosystem process in these forests that was largely eliminated in the 20th century. Fire reintroduction is a critical goal but is subject to constraints such as smoke production, risk of fire moving outside designated boundaries, the expanding wildland-urban interface, and ...
متن کاملManaging Forests for Wildlife
wood ducks that winter extensively in southern bottoms, nest throughout much of forested North America. And probably more importantly than use by individual animals, broad-scale landscape habitat conditions affect wildlife community composition and population function of species. For example, very small pockets of forest habitat may serve as sinks for forest interior birds, where mortality exce...
متن کاملManaging Forests for Yield
Management of forest vegetation and its relationship to water yield has long been a lively issue. The USDA Forest Service has been criticized in northern Colorado for failing to have a forest management strategy that includes consideration of water yield for downstream users, including fish and wildlife (Swanson 1998). Some say it is possible to get substantial increases in runoff with modest v...
متن کاملManaging Sierra Nevada Forests
1 Research ecologist, U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1731 Research Park Dr., Davis, CA 95618. 2 Information Center for the Environment, Department of Environmental Science and Policy, One Shields Ave., University of California, Davis, Davis, CA 95616. 3 National coordinator for experimental forests and ranges, U.S. Department of Agriculture, ...
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ژورنال
عنوان ژورنال: Banko Janakari
سال: 2017
ISSN: 2631-2301,1016-0582
DOI: 10.3126/banko.v7i2.18106