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AREA AND ITS USE AS AN INDICATOR OF KIND OF GROUND
Natural vegetation characteristic of swampy areas
Abaca aerial observation Aerial Photographs bamboo canopy Casuarina Celebes China clayey coco palms Coffee commonly Concealment from aerial covered deciduous forest dense dikes Distribution drainage dry crops dry season Ease of Clearing eastern tropics Explanation of Symbols feet high fields Fishponds foot Formosa grassland Ground Conditions groves grow grown grubbed Identification on Aerial intensively cultivated Islands kind of ground lagoons large-scale pictures Mangrove swamp Maylasia mossy forest muddy native gardens natural vegetation nipa palms Oblique aerial occupied pandanus Philippine Bur PIATE plantations planted PLATE ponds poorly drained potatoes primary forest Primary rain forest probably rain forest rice paddies river rows Rubber Sago palms Sago swamp Sandy beach sandy soil savanna secondary forest Secondary rain forest slopes small-scale pictures soil textures stream sugar cane Sugarcane swamp forest terrace texture tidal Timber and Firewood tone Topography and Ground trees undergrowth USAAF valley vegetation types vehicles Visibility and Concealment well-drained