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Author : Philip L. Johnson
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (319 download)
Download or read book Aerial Sensing and Photographic Study of the El Verde Rain Forest, Puerto Rico written by Philip L. Johnson and published by . This book was released on 1969 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Philip L. Johnson
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (329 download)
Download or read book Aerial Sensing and Photographic Study of the El Verde Rain Forest, Puerto Rico written by Philip L. Johnson and published by . This book was released on 1969 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerial and ground photographs were taken over a 2-year period of sites in the El Verde rain forest to record the consistency of the vegetational patterns in untreated sites and the changes that occurred following gamma irradiation. Four emulsions were used: panchromatic infrared, false color transparency and color transparency. Densitometry was used to evaluate color film and the vegetation response to 3 months of radiation. The color emulsions provided the sharpest indication of damage to vegetation and the succession following treatment. Hemispherical photography of the canopy was evaluated in terms of a canopy cover index defined as per cent of light passing through the negative in a 90-degree cone area. Control stations were remarkably constant in all photography, establishing the stability and slow natural changes in rain forest structure. Spectral light measurements within the forest confirmed the predominance of far red shade light. Compared to similar studies on the chronic irradiated forest at Brookhaven National Laboratory the El Verde results were less distinct. (Author).
Author : Menandra Mosquera
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (319 download)
Download or read book Bibliography of Forestry in Puerto Rico written by Menandra Mosquera and published by . This book was released on 1984 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 618 pages
Book Rating : 4.3/5 (91 download)
Download or read book General Technical Report SO. written by and published by . This book was released on 1977 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.:/5 (319 download)
Download or read book Research Report - Corps of Engineers, U.S. Army, Cold Regions Research and Engineering Laboratory written by and published by . This book was released on 1968 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Howard Thomas Odum
Publisher :
ISBN 13 :
Total Pages : 604 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Tropical Rain Forest written by Howard Thomas Odum and published by . This book was released on 1970 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sandra K. Brown
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (319 download)
Download or read book Research History and Opportunities in the Luquillo Experimental Forest written by Sandra K. Brown and published by . This book was released on 1983 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Defense Documentation Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.3/5 ( download)
Download or read book Infrared Photography: a DDC Bibliography written by Defense Documentation Center (U.S.) and published by . This book was released on 1970 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cold Regions Research and Engineering Laboratory (U.S.)
Publisher :
ISBN 13 :
Total Pages : 478 pages
Book Rating : 4.3/5 (91 download)
Download or read book Special Report - Corps of Engineers, U.S. Army, Cold Regions Research and Engineering Laboratory written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1972 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Science and Astronautics
Publisher :
ISBN 13 :
Total Pages : 472 pages
Book Rating : 4.F/5 ( download)
Download or read book International Biological Program, Hearings Before the Subcommittee on Science, Research, and Development...90-1, on H.Con.Res.273, May 9; June 6; July 12; August 3, 9, 1967 written by United States. Congress. House. Science and Astronautics and published by . This book was released on 1967 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Science and Astronautics. Subcommittee on Science, Research, and Development
Publisher :
ISBN 13 :
Total Pages : 462 pages
Book Rating : 4.:/5 (31 download)
Download or read book International Biological Program written by United States. Congress. House. Committee on Science and Astronautics. Subcommittee on Science, Research, and Development and published by . This book was released on 1967 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Committee Serial No. 6. Considers H. Con. Res. 273, to provide congressional endorsement for the international biological program, established under auspices of International Council of Scientific Unions and International Union of Biological Sciences, and sponsored domestically by National Academy of Sciences and National Academy of Engineering. Program embraces concerted effort to support numerous worldwide biological studies.
Author : United States. Congress. House. Committee on Science and Astronautics
Publisher :
ISBN 13 :
Total Pages : 1020 pages
Book Rating : 4.3/5 (91 download)
Download or read book Hearings written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1967 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Science and Astronautics
Publisher :
ISBN 13 :
Total Pages : 1236 pages
Book Rating : 4.:/5 (36 download)
Download or read book Hearings, Reports and Prints of the House Committee on Science and Astronautics written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1967 with total page 1236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cold Regions Research and Engineering Laboratory (U.S.)
Publisher :
ISBN 13 :
Total Pages : 386 pages
Book Rating : 4.:/5 (319 download)
Download or read book USA CRREL Technical Publications written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1972 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Philip L. Johnson
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book Evaluation of Forest Canopies by Photography written by Philip L. Johnson and published by . This book was released on 1968 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A technique for evaluating forest canopies was developed based on the use of a divergent lens system to obtain hemispherical photographs of tree crowns. The photography was processed from 35 mm film and enlarged as a silhouette, and the light transmission was measured with a specially fabricated macrodensitometer. It is shown by application to a variety of problems in diverse geographical areas that this technique can be used for measuring both temporal and spatial changes in the canopy, for estimating the shade light climate, and for specifying the probability of target detection through a canopy. Data are presented to analyze changes caused by explosions, radioactivity, growing season, and vegetation types. The geometry of gaps in three crowns is discussed and the nature of shade light quality under forests is illustrated. (Author).
Author :
Publisher : IICA Biblioteca Venezuela
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4./5 ( download)
Download or read book Bibliografia sobre Sensores Remotos written by and published by IICA Biblioteca Venezuela. This book was released on with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marius Jacobs
Publisher : Springer Science & Business Media
ISBN 13 : 364272793X
Total Pages : 310 pages
Book Rating : 4.6/5 (427 download)
Download or read book The Tropical Rain Forest written by Marius Jacobs and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, tropical forests have received more attention and have been the subject of greater environmental concern than any other kind of vegetation. There is an increasing public awareness of the importance of these forests, not only as a diminishing source of countless products used by mankind, nor for their effects on soil stabilization and climate, but as unrivalled sources of what today we call biodiversity. Threats to the continued existence of the forests represent threats to tens of thousands of species of organisms, both plants and animals. It is all the more surprising, therefore, that there have been no major scientific accounts published in recent years since the classic handbook by Paul W. Richards, The Tropical Rain Forest in 1952. Some excellent popular accounts of tropical rain forests have been published including Paul Richard's The Life of the Jungle, and Catherine Caulfield's In the Rainforest and Jungles, edited by Edward Ayensu. There have been numerous, often conflicting, assessments of the rate of conversion of tropical forests to other uses and explanations of the underlying causes, and in 1978 UNESCO/UNEPI FAO published a massive report, The Tropical Rain Forest, which, although full of useful information, is highly selective and does not fully survey the enormous diversity of the forests.
