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Land Evaluation for Agricultural Development

其他書名	Some Explorations of Land-use Systems Analysis with Particular Reference to Latin America
出版	International Institute for Land Reclamation and Improvement, 1978
URL	http://books.google.com.hk/books?id=1F9gAAAAIAAJ&hl=&source=gbs_api

註釋Thus, relevant uses need to be identified at an early stage (Chapter 2). This has not always been satisfactory. To help in land evaluation, the concept 'land utilization type' (LUT) has been introduced. This is defined as a specific way, actual or alternative, of using the land, described in terms of produce, labour, capital, management, technology and scale of operations. The principal objective of this thesis is to strengthen the philosophical base of land evaluation by explaining the LUT concept. Many similarities exist between this concept in land evaluation and other land-use defining concepts such as production and farming systems. Due to the complicated interactions that occur between their many constituent parts, the analysis of farming systems cannot fully account for the variation in physical land conditions. Land evaluation contributes to solving this problem by making preliminary and partial analyses of the variability of the land and of its influence on the performance of present and alternative land uses. To this end, land use is arbitrarily subdivided into two elements: the land (LU), mostly described by land evaluators in terms of land (mapping) units, and the use (LUT). Thus it should be possible to predict the performance of different LU, LUT combinations, called 'land use systems' (LU S) in this report. Such a 'landuse systems approach' should permit easy extrapolation of the land evaluation results to farming systems research and land use planning.