Soil organic carbon distribution in densely populated village landscape of different regions Long-term changes in area and soil total nitrogen and total phosphorus storage in croplands of the densely populated village landscapes of China′s Yangtze Plain Changes in land use and land cover and soil organic carbon storage in the densely populated village landscapes of China′s Yangtze Plain from the 1940 to 2002 Landscape structure, management and soil organic carbon in the densely populated village landscapes of China‘s Yangtze Delta Plain Characteristic study on village landscape patterns in Sichuan Basin hilly region based on high resolution IKONOS remote sensing