Download or read book Symptomatology Trend of Tree Condition of Red Spruce Balsam Fir written by and published by . This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Damage Agents Associated with Visual Symptoms on Red Spruce and Balsam Fir in the Northeastern United States written by Susan Marie Cox and published by . This book was released on 1991 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Assessment of Red Spruce Balsam Fir Condition in the Adirondack Region of New York the Green Mountains of Vermont the White Mountains of New Hampshire and the Mountains of Western Maine 1985 1986 written by Margaret M. Miller-Weeks and published by . This book was released on 1993 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decline and Mortality of Red Spruce in West Virginia written by and published by . This book was released on 1986 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Assessment of Red Spruce Balsam Fir Condition in the Adirondack Region of New York the Green Mountains of Vermont the White Mountains of New Hampshire and the Mountains of Western Maine 1985 1986 written by Margaret M. Miller-Weeks and published by . This book was released on 1993 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foliar nutrient status of young red spruce and balsam fir in a fertilized stand written by Miroslaw M. Czapowskyj and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Average dry weight and nutrient levels in current foliage from red spruce and balsam fir seedlings and saplings in the understory of a 25-year old aspen and birch stand were observed 3 years after N, P, and lime treatments were applied. Elemental concentrations were plotted as a function of needle weight and quantity of element per needle. This allows interpretation of treatment effect on overall nutrient levels for both concentration and quantity of each element in the foliage. In balsam fir, dry weight per needle was significantly increased by N fertilizer. Nitrogen also significantly affected levels of ash, N, P, K, Ca, Fe, Mn, Zn, and Na in balsam fir foliage. In red spruce, dry weight per needle, N, and Fe levels all responded to N fertilizer; P fertilizer affected P foliar concentration and lime significantly affected Mn levels. In both species there were significant interactions among the N, P, and lime treatments, indicating that response to one element varied according to the other elements added simultaneously. Balsam fir needles were heavier and contained higher levels of nutrients than red spruce needles. The magnitude of changes in elemental levels was generally greater for balsam fir than for red spruce.
Download or read book Ecology and Decline of Red Spruce in the Eastern United States written by Mary B. Adams and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1980s there were several published reports of recent, unexplained increases in mortality of red spruce in the Adirondack Mountains and the northern Appalachian Mountains of the eastern United States. These reports coincided with documentation of reductions in radial growth of several species of pine in the southeastern United States, and with the severe, rapid, and widespread decline of Norway spruce, silver fir, and some hardwoods in central Europe. In all of these instances, atmospheric deposition was hypothesized as the cause of the decline. (Throughout this volume, we use the term "decline" to refer to a loosely synchronized regional-scale deterioration of tree health which is brought about by a combination of stress factors. These may be biotic or abiotic in nature, and the combinations may differ from site to site. ) Heated public debate about the causes and possible cures for these forest declines ensued. Through the course of this debate, it became clear that information about forest health and air pollution effects on forests was inadequate to meet policymakers' needs. Ecology and Decline of Red Spruce in the Eastern United States addresses that gap for eastern spruce fir forests and represents the culmination of a great deal of research conducted in recent years. The focus is on red spruce because the decline of red spruce was both dramatic and inexplicable and because of the great amount of information gathered on red spruce.
Download or read book Damage Agents Associated with Visual Symptoms on Red Spruce and Balsam Fir in the Northeastern United States written by Susan Marie Cox and published by . This book was released on 1991 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Assessment of Red Spruce Balsam Fir Condition in the Adirondack Region of New York the Green Mountains of Vermont the White Mountains of New Hampshire and the Mountains of Western Maine 1985 1986 written by Margaret M. Miller-Weeks and published by . This book was released on 1993 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Northeastern Area Forest Health Report written by and published by . This book was released on 1993 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Forest Research Journal Canadien de la Recherche Foresti re written by and published by . This book was released on 2005 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Health Assessment for the Northeastern Area 1993 written by Daniel B. Twardus and published by . This book was released on 1995 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terrestrial Effects Task Group V Peer Review written by and published by . This book was released on 1987 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wind Damage and Root Disease of Red Spruce and Balsam Fir in the Subalpine Zone of the White Mountains of New Hampshire written by David M. Rizzo and published by . This book was released on 1986 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interim Assessment Effects of acidic deposition written by and published by . This book was released on 1987 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interim Assessment the Causes and Effects of Acidic Deposition written by and published by . This book was released on 1988 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interim Assessment written by and published by . This book was released on 1987 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
