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In this study, using "3S" techniques and partial correlation coefficients analysis, the spatial pattern and the factors of urban green spaces (UGS) in Hong Kong were analyzed in detail. Results indicate that there are many chances to improve the current conditions of UGS especially in the less densely place. The positive roles of PD and BD indicate that the organization and distribution...
The study of land use/cover change helps to explain the inner mechanism of interaction of human-earth system. Based on the classification of the remote sensing data in 1978, 1987, 2000 and 2005, using indices representing spatial pattern characteristics of land use/cover such as gravity center migration, diversity index, dominance index, evenness index and fragmentation index, spatial pattern dynamics...
Shanghai has experienced rapid urbanization over the past three decades. With the rapid development and expansion of city, the physical characteristics (such as land cover types, surface albedo and so on) and property of the urban underlying surface are undergoing substantially changes, which significantly impact the climate and ecological environment. Based on the Landsat TM remote sensing imagery,...
The spatial distributions and variability of the main nutrients in the topsoil of Chongming island of China are explored by using geostatistics combining with GIS. The multi-scale model is used to analyze the spatial pattern of soil nutrient factors based on the principle of Minimum Nugget Effect to ensure the stability of the interpolation model with the high interpolating accuracy. The result shows...
Global climate changes are changing our ecosystem and therefore changing the spatial distributional pattern of plants and trees. In this paper, we examine and compare the two South African Acacia tree species: Acacia gerrardii var. gerrardii and Acacia tortilis subsp. Heteracantha, and look at how they change in terms of distribution in the future (2100). We used the PDEAR (partial differential equation...
The physical geography of Mongolian Plateau plays an important role in the East Asian climate ecology system. In this research, GIMMS NDVI, the third generation of NDVI dataset, was processed using the MVC method first, then the spatial-temporal patterns of GIMMS NDVI in Mongolian Plateau during 1982-2003 was investigated, and the transect from Tariat to Xilin Gol was also selected to analyze the...
The integration of climate, satellite, ocean, and biophysical data holds considerable potential for enhancing our drought monitoring and prediction capabilities beyond the tools that currently exist. Improvements in meteorological observations and prediction methods, increased accuracy of seasonal forecasts using oceanic indicators, and advancements in satellite-based remote sensing have greatly enhanced...
In this paper, the Common Land Model (CLM) and the Monteith type carbon model-C-FIX were applied to estimate the water use efficiency (WUE) of western China in 2002. The input data mainly included NCAR and Meteo France meteorological data sets, 1 km USGS soil and land cover data, the global 0.25deg monthly MODIS LAI data and the 1 km VGT-S10 NDVI products. Some field measurements of WUE for different...
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