Download or read book Basal Area and Point sampling written by H. J. Hovind and published by . This book was released on 1961 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selection of Basal Area Factor in Point Sampling written by L. C. Wensel and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simplified Point sample Cruising written by Burl S. Ashley and published by . This book was released on 1991 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Point Sampling written by Thomas W. Beers and published by . This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistical Properties and Field Efficiency of Multiple Basal Area Factor Procedures in Point Sampling written by Douglas Dale De Koster and published by . This book was released on 1984 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of Basal Area and Merchantable Height as Auxiliary Variables for Double Sampling with Point Sampling written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Point Sampling and Plot Sampling Compared for Forest Inventory written by Charles C. Myers and published by . This book was released on 1971 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Measurements written by Thomas Eugene Avery and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Timber measurement techniques applicable to any tree inventory project regardless of management objectives are covered by this text. Thorough coverage of sampling designs, land measurements, tree measurements, forest inventory field methods, and growth projections ensures utility for all foresters. Included are chapters on aerial photographs, GIS, and using similar techniques to measure other natural resources such as rangelands, wildlife, and water.
Download or read book An Analysis of Design and Technique of Cluster Point Sampling in Coastal Alaska Old growth Forests written by Vernon J. LaBau and published by . This book was released on 1967 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was a test of eight basal area factors and five point sampling cluster patterns in a computer oriented sampling study of coastal Alaska old-growth spruce-hemlock stands. It was an attempt to learn which basal area factor and which type of point sample cluster pattern should be used in such stands. A. test of the effect of stand density on point sampling was also made. All trees 3. 0 inches d. b. h. and larger on ten 3. 5 acre areas were measured and mapped in the field. Five of the areas had crown densities of from 40 to 69%, and the other five had crown densities of 70% or more, as determined from aerial photographs. The computer measured basal areas per acre for all forty of the basal area factor/sample cluster combinations on each of the stem mapped areas. These average basal areas were summarized for the five sampled areas in each density and analyzed in two ways. Analysis of variance was used to test for significant difference of precision and accuracy among the eight basal area factors, among the five sample cluster patterns, and between the two density classes. A chi-square analysis was used to determine the relative accuracy of the designs under test. Results of the analysis of variance indicated that there were highly significant differences among the variances of the basal area factors tested and a significant difference among the variances of the sample cluster patterns tested. There was no significant difference between the variances of the two stand density classes tested. No significant interaction was observed among the sample variances for the sets of variables tested. There were highly significant differences among the accuracies obtained with each of the basal area factors and with each of the sample cluster patterns tested. There was no significant difference between accuracies of the density classes tested. A significant interaction was observed between the accuracies of the basal area factors tested and the accuracies of the cluster patterns tested. The data of this study indicated that samples from full density stands measured with large basal area factors tended to overestimate the true basal area of the stand. This overestimate increased as size of basal area factor increased. For that reason, and until further study denies that this bias exists, maximum basal area factors of 30 and 40 are recommended for sampling in medium and full density stands respectively. The data also indicate that, of the five cluster patterns tested, a 15 point cluster pattern provided the most accurate and most precise measure of basal area per acre.
Download or read book Point Sampling with a Rope written by K. R. Satyamurthi and published by . This book was released on 1983 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beschrijving van een berekeningsmethode ter bepaling van de plaats waar een boom moet worden ingekerfd voor het omhakken, waarbij een vergelijking wordt gemaakt met de zogenaamde Bitterlich-methode. Aan de hand van een praktijkvoorbeeld wordt een en ander verduidelijkt. Tenslotte wordt ingegaan op een theorie voor een methode ter bepaling van andere karakteristieken
Download or read book Forest Mensuration written by John A. Kershaw, Jr. and published by John Wiley & Sons. This book was released on 2016-12-27 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest mensuration – the science of measurement applied to forest vegetation and forest products – holds value for basic ecology as well as sustainable forest management. As demands on the world’s forests have grown, scientists and professionals are increasingly called on to quantify forest composition, structure, and the goods and services forests provide. Grounded in geometry, sampling theory, and ecology as well as practical field experience, forest mensuration offers opportunities for creative problem solving and critical thinking. This fifth edition of the classic volume, Forest Mensuration, includes coverage of traditional and emerging topics, with attention to SI and Imperial units throughout. The book has been reorganised from the fourth edition to better integrate non-timber and ecological aspects of forest mensuration at the tree, stand, forest, and landscape scales throughout. The new edition includes new chapters that specifically address the integration of remotely sensed data in the forest inventory process, and inventory methods for dead and downed wood. One unifying theme, not only for traditional forestry but for the non-timber inventory and for remote sensing, is the use of covariates to make sampling more efficient and spatially explicit. This is introduced in the introductory chapter on statistics and the chapter on sampling designs has been restructured to highlight this approach and lay the foundation for further learning. New examples will be developed throughout the textbook with an emphasis on current issues and international practice. Students in applied forestry programs will find ample coverage of forest products and timber inventory, while expanded material on biodiversity, biomass and carbon inventory, downed dead wood, and the growing role of remote sensing in forest assessment will be valuable to a broader audience in applied ecology.
Download or read book Volume basal Area Ratios for Horizontal Point Sampling of Red Pine in Southeastern Michigan written by Bruce William Abbott and published by . This book was released on 1984 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistical Properties of Estimators Based on Horizontal Point Sampling Using Multiple Basal Area Factors written by John J. Kelly and published by . This book was released on 1985 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Point sampling from Two Angles written by Ellis V. Hunt and published by . This book was released on 1964 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cluster Point Sampling in Moist Tropical Forests Using Large Basal Area Factors written by Sydney G. Banyard and published by . This book was released on 1989 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tree and Forest Measurement written by Phil West and published by Springer Science & Business Media. This book was released on 2009-06-12 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forests must be measured, if they are to be managed and conserved properly. This book describes the principles of modern forest measurement, whether using simple, hand-held equipment or sophisticated satellite imagery. Written in a straightforward style, it will be understood by everyone who works with forests, from the professional forester to the layperson. It describes how and why forests are measured and the basis of the science behind the measurements taken.
Download or read book Practical Point sampling written by Ellis V. Hunt and published by . This book was released on 1967 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
