Download or read book Development of a Land Evaluation and Site Assessment LESA Model for Forestry in Lane County Oregon written by Joseph A. Pepi and published by . This book was released on 1989 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Land Evaluation and Site Assessment (LESA) Model was developed for the forested soils of Lane County, in western Oregon, based on soil potential ratings and indexes of parcel size and adjacent and surrounding land use conflict. Lane County's economy is heavily dependent on resource production uses of land for forestry. At the same time, population growth around metropolitan areas creates pressure to convert rural land from large resource use parcels to smaller rural residential parcels. Planning for future allocation of land among competing uses promoted the county to develop an objective method for determining the relative quality of any parcel of land for forestry. Parcels of lower quality could then be considered for conversion to rural residential uses. LESA was developed by the SCS for use by state and local governments as an objective method of evaluating the resource production quality of land for planning purposes. Land evaluation (LE) measures the relative suitability of the soils of a given parcel for forestry. Site Assessment (SA) measures the relative suitability of the setting in which the parcel occurs. The soil potential ratings (SPR's) were developed from soil map unit characteristics defined in the Soil Survey of the Lane County Area. SPR's are indexes of the net return to soil management for forestry. Each soil is assigned an expected output, or yield, to soil management for forestry using a computer model called DFSIM. Management practices required to achieve that yield also are specified. Monetary values are determined for both yields and management practices, and the difference between price received and total costs is a measure of soil potential. The soil having the highest net return to soil management is assigned an arbitrary value of 100 points. All other soils are rated by expressing their net return as a percent of the maximum. Management practices in each of four categories - site preparation and stand establishment, thinning, harvest, and road construction and maintenance - were prescribed, and their costs determined, based on their interactions with soil slope, erodibility, depth, bedrock hardness, and coarse fragment content. Land evaluation was completed by overlaying a soil map of the land parcel of interest, determining the fractional amount of each soil present, and multiplying that amount by the corresponding soil potential rating. The sum of all the products is a weighted average soil potential rating for a parcel. Development of the Site Assessment (SA) portion of the model was guided by a technical committee of forest management professionals and land use specialists. The committee chose the factors that were considered important in site assessment and how much weight to give to each factor. For this LESA model, two factors were identified: compatibility with other land uses, and parcel size. The concept of compatibility implies that large scale forestry uses are compatible with each other but are not compatible with small scale residential uses. Generally, the more non-resource related dwellings in forestry areas, the greater the potential conflict due to noise, chemical spraying, dust, smoke, and vandalism. Two empirical formulas were developed to measure compatibility effects. One accounts for the number and density of non-compatible parcels adjacent to the parcel of interest. The other measures the density of non-compatible parcels within a specified distance of the target parcel, which was 1/2 mile. Parcel size implies that large parcels are more suitable for resource uses than small ones, and that parcels surrounded by a few large parcels are more favorable than parcels surrounded by many small parcels. An empirical formula was derived to measure these effects. Optimum parcel sizes depended on slope, parcel shape, and the number of streams running through the parcel. The final step in the LESA model development was to specify a total point value, and to decide on the proportion of that total that would go to each of the factors, soils, compatibility, and parcel size. In previous LESA models the point total has been 300. This total was allocated to each of the factors as follows: soils 105, adjacent use 75, surrounding use 45, and parcel size 75. Validation is a critical part of the development of a LESA model, and it is done by applying the LESA criteria to several parcels that represent a range of soil resource quality, sizes, and land use settings. Each parcel must then be examined in the field by the LESA development committee. Field examination is essential in order to make needed adjustments in empirical formulas. Through the repeating of this validation process, the model is fine tuned and its accuracy for planning purposes is validated. LESA scores can be used to distinguish between primary and secondary land resources. Primary resource lands are sufficiently valuable for forest uses that land use controls are justified to prevent the introduction of non-resource development. Secondary resource land is of lesser quality and is a more appropriate site for smaller scale resource uses and certain non-resource uses. Information from the test parcels was used to set primary/secondary thresholds for each factor and to develop empirical criteria for classifying each parcel.
Download or read book A Decade with LESA written by Frederick R. Steiner 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 Adapting the Agricultural Land Evaluation and Site Assessment LESA System in the Pacific Northwest written by and published by . This book was released on 1984 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 1992 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: An annual list begun in 1957. Lists the titles and authors of over 13,000 theses accepted during 1989 (and a few accepted earlier but not reported), by discipline astronomy, nuclear engineering, textile technology and then by college. Does not include mathematics or the life sciences. No index. Anno
Download or read book Issue Paper written by and published by . This book was released on 2018 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Agricultural Land Evaluation and Site Assessment Handbook written by United States. Natural Resources Conservation Service and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The intent of this handbook is to explain the preparation and use of the Agricultural Land Evaluation and Site Assessment (LESA) system developed by the U.S. Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS), formerly the Soil Conservation Service (SCS). The handbook was developed to meet the requirements of the Farmland Protection Policy Act. The LESA system is designed to determine the quality of land for agricultural uses and to assess sites or land areas for their agricultural economic viability. The LESA system can be used to facilitate decision making by State and local planners, landholders, developers, and governing officials.
Download or read book LESA written by United States. Soil Conservation Service and published by . This book was released on 1985* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of the Soil Conservation Service Land Evaluation and Site Assessment Program LESA for Forest Resources written by David E. White and published by . This book was released on 1989 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Application of Land Evaluation and Site Assessment Model LESA and Geographic Information Systems GIS as an Effective Measure of Social Implications in Farmland Conversion Process written by Tomasz Szczuka and published by . This book was released on 2004 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Evaluation and Site Assessment LESA Systems for Arid and Semi arid Landscapes written by Anubhav Bagley and published by . This book was released on 1997 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomy News written by and published by . This book was released on 1989 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Download or read book Metamora and Worth Townships Land Evaluation and Site Assessment LESA written by Rebecca Ann Powell and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Evaluation for Forestry written by Food and Agriculture Organization of the United Nations and published by . This book was released on 1984 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nature and purposes of land evaluation for forestry. Principles and basic concepts. Outline of procedures. Planning the evaluation. Forest land utilization types. Land use requirements. Surveys and specialized studies of land . Matching land use with land. Environmental impact. Economic and social analysis. Land suitability classification. Resentation of results.
Download or read book Applications of the Land Evaluation and Site Assessment LESA System in Virginia written by Kenneth R. Markert and published by . This book was released on 1984 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Resources and Forest Industries of Lane County Oregon written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1957 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Analysis of the Public Forest Resources of Lane County Oregon by Major Drainages written by Gary Leonhard Strodtz and published by . This book was released on 1967 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study are to reveal the present condition of the public forest resource of Lane County and to estimate its potential to support an expanding wood-using industry. The study was supported by the Bohemia Lumber Company of Lane County as the initial part of an analysis of the total wood-using industry of the county. Expansion of this industry has been based largely upon forecasts of increasing markets for wood products. Prior to this little attention has been given to the ability of the forest resource to support and maintain an expanding forest industry. Lane County is divided into four major drainages based upon U.S. Forest Service working circle boundaries. These are the McKenzie, Willamette, Cottage Grove, and Siuslaw. The Forest Service is the largest single administrator of the forest resource in the area. Data for this study were obtained by compiling inventory data presently available through public agencies. As a matter of expediency, the public forest resources are classified by agency in each drainage. The agency ownerships are then compiled for the county as a whole. There are approximately 1, 486, 655 acres of the public forest land classified for timber production supporting about 51 billion board feet. Presently, about 886 million board feet are cut annually from public forest land. This cut supports almost 50 percent of the 1.9 billion board feet capacity of the wood-using industry within the county. The remaining 50 percent of the material needed to reach this potential capacity would have to come from private forest resource and resources outside of the county. The expansion of the wood-using industry of Lane County appears favorable based upon the large contribution from this public forest resource.
Download or read book Review Draft of an Assessment of the Forest and Range Land Situation in the United States written by United States. Forest Service and published by . This book was released on 1983 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
