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:

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).

Download or read book Aerial Sensing and Photographic Study of the El Verde Rain Forest Puerto Rico written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerial Sensing and Photographic Study of the El Verde Rain Forest Puerto Rico written by and published by . This book was released on 1969 with total page 0 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).

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:

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:

Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1970 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book SIPRE Report written by and published by . This book was released on with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1971-04 with total page 1658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1971-07 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tropical Forest Canopies Ecology and Management written by K.E. Linsenmair and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost half of all life on earth may exist in the world's forest canopies. They may also play a vital role in maintaining the planet's climate, yet they remain largely unexplored owing to difficulties of access. They are renowned for their great diversity and role in forest functioning, yet there are still great gaps in the understanding of this `last biological frontier'. This seminal book shows how canopy science is now in a position to answer many of the outstanding questions, among which are some of the most pressing environmental issues society is presently facing. It represents a major summary of the current understanding of canopy ecology, and maps a path forward into a greater understanding of tropical forest ecology and management at a time when the very future of this ecosystem is threatened by humanity's actions.

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:

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:

Download or read book Tropical Forest Canopies Ecology and Management written by Karl-Eduard Linsenmair and published by Springer Science & Business Media. This book was released on 2001 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: