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Research On Theory And Methods Of Land Use/Cover Change

Posted on:2005-06-29Degree:MasterType:Thesis
Country:ChinaCandidate:G J WangFull Text:PDF
GTID:2156360122997607Subject:Physical geography
Abstract/Summary:PDF Full Text Request
With the penetrating development of global changes research, the domain holds the view that the impact on global system from human being have exceeded that from nature, and human being's impact has been the key factor of global changes. The Land Cover Change resulted from Land Use Change is a significant constituent and main cause of global environmental changes, so the apperception of land use/cover change is of great importance to simulate and uppraise the environment synthetically, recognize the international mechanism and reduce the infinity of global change. Currently, case study plays a role part in accumulating knowledge. This article takes Jinjiang City as a case and makes some superficial research. The article demonstrates in three chapters as follows:Chapter One explores the theory, methodology, development and prospect of LUCC research.lt narrates the theory and comprehensive frame of LUCC research, makes a systematic research of its methodology, especially that of its dynamic observation and information analysis. It generalizes its advances in theory and techniques, and then proposes the points that its further developments necessitate a standard parameter and model system, a colligation of different models, and an unattached theory system. Then narrates the general situation of Jinjiang City, and then follows the methodology the case adopts.Chapter Two majors in the spatio-temporally compound patterns. Based on the concept of Land Use Information Tupu, it constitutes a series of Tupu models, Comprehensive Tupu, Death Tupu and Growth Tupu included, which uncover the spatio-temporally compound patterns of land use. It makes a comprehensive and meticulous discussion about prospective models of land use, introducing some ones in common use such as GM(1,1), multi-variable linear regressive model, Marcov model, dynamic model and Geo-CA model, and proposing some unfamiliar models such as gray systematical integrative prospective model, manual neural-network model and multi-variable nonlinear regressive model, etc. This article adopts the Marcov model and draws a conclusion that constructive land will predominate Jinjiang City in about 50-100 years.Chapter Three probes in the heterogeneity of land use tensity and human being's impact sampled systematically with geostatistics in practice. Such cases with geotatistics practiced in land use study are currently scarce. Finally it forms a kriging surface, from which the spatial structure and its temporal change of land use tensity and human being's impact are formulated explicitly.
Keywords/Search Tags:land use, Markov chain, geostatistics, spatial variation, human activity
PDF Full Text Request
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