road network (rn) can affect patterns and distribution of land uses and covers. road network expansion has both direct and indirect impacts on land uses and covers changes. agricultural land conversions (alcs) are especially known as one of the main important types of land use changes. the purpose of this paper, in addition to estimation of the direct impact of rn expansion on alcs, is to evalu...

New Zealand is developing a national inventory of carbon (C) sinks and sources for reporting under the Kyoto Protocol and the United Nations Framework Convention on Climate Change. The first cycle of inventory is due for completion in 2005. To support this inventory, we estimated rates of net C change by scaling site-specific measurements and models of C accumulation to national levels using sp...

Remote sensing data type, classification technique and class description act together to produce, large differences in the classification of landcover. The resulting map will vary in the extent, patchiness and accuracy of classified areas. Differences in the classification of a landcover map are the result inter-relationships between a number of scale dependent factors such as pixel size, exten...

Land management and planning is crucial for present and future use of land and the sustainability of land resources. Physical, biological and cultural characteristics of land can be used to define Land Management Units (LMUs) that aid in decision making for managing land and communicating information between different research and application domains. This study aims to describe the classificat...

Surface albedo is an important parameter in atmospheric radiation research. Good knowledge of surface bi-directional reflectance distribution function (BRDF) is essential in order to obtain the hemispheric reflectance (albedo) using data from satellite systems, which only view the ground at particular angles. Linear kernel-driven BRDF models have been commonly used for simple operational implem...

In this study we examine the possibility that the historical total of human landcover changes have had a comparable effect on climate to that of historical increases in CO2 and aerosols. We compared results from two coupled climate model simulations which investigated transient climate changes produced by observed historical changes of CO2 combined with sulfate aerosol forcing with two other cl...

One of the most important problems facing land cover mapping effort in Egypt is intensive and mixed landcover areas, which represent the majority of agricultural productive areas. This study was carried out to evaluate the possibility of using Linear Mixture Model as a sub pixel classification technique to extract fraction images from Landsat Enhanced Thematic Mapper data, which may help in fut...

This report reviews and straightens methodologies to explore functional forms of man-landcover interrelations**. Tanaka and Nishii[7, 8, 9, 10, 12, 13], Nishii and Tanaka[4, 6], Nishii, Miyata, and Tanaka[5] have engaged in the analysis of deforestation by human population interactions. The basic strategy has been to use landcover data mashed up with cell-formed population density data. Two fac...