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 Decline and Mortality of Red Spruce in West Virginia written by and published by . This book was released on 1986 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 Ecology and Decline of Red Spruce in the Eastern United States written by Christopher Eagar and published by Springer Verlag. This book was released on 1992 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the recent decline of red spruce and the role of acid rain and associated air pollutants in this decline. The purpose of the book is to summarize a large body of recent research on this important environmental issue. The book is divided into 3 sections: Section I summarizes the features of spruce-fir forests in the Eastern U. S. and examines the ecology of the forests, their soils, and the atmospheric conditions experienced by these forests. Section II looks at experimental results from many air pollution studies and evaluates mechanisms of air pollution effects on red spruce trees. Section III synthesizes the current state of knowledge regarding the widespread red spruce decline in forests of the eastern United States.
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 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 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 Growth Responses of Red Spruce Picea Rubens Sarg and Balsam Fir Abies Balsamea L Mill to Vegetation Management with Herbicides in Maine written by Gary Richard Schaertl and published by . This book was released on 1994 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Commercial Thinning on Stand and Tree level Mortality Patterns of Balsam Fir Abies Balsamea and Red Spruce Picea Rubens Forests in Maine that Have Or Have Not Received Precommercial Thinning written by Joseph Robert Pekol and published by . This book was released on 2011 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecophysiological and Morphological Responses of Balsam Fir and Red Spruce to Elevation and the Canopy Light Gradient in the Mountains of the Northeastern United States microform written by Richardson, Andrew David and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 2003 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variations in the Physical Properties and Anatomy of the Bark of Red Spruce and Balsam Fir written by David J. Danbury and published by . This book was released on 1960 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variation in Seasonal Patterns of Photosynthesis Among Red Spruce and Balsam Fir Provenances written by Stephen F. Gage and published by . This book was released on 1993 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Root Vitality and Decline of Red Spruce written by and published by . This book was released on 1993 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Common Insects and Diseases of Balsam Fir Christmas Trees written by Colin Charles Smith and published by . This book was released on 1974 with total page 72 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 M. M. Czapowskyj and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Early Stand Development of Red Spruce Picea Rubens Sarg and Balsam Fir Abies Balsamea L Mill Natural Regeneration in Maine written by Patrick J. Strauch and published by . This book was released on 1991 with total page 130 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:
