The Agricultural Systems of the World: Wet-rice cultivation in Asia

摘要: Wet-rice cultivation is perhaps the most distinctive of types agriculture discussed in this book, and certainly one important, for it supports a majority rural population Far East. It dominant mode farming China as far north Hsin Ho; South Korea; Japan; Taiwan; Tonkin delta Annamite coastlands North Vietnam; Mekong around Tonle Sap; Central Plain Thailand; Irrawaddy delta; Ganges–Brahmaputra delta, lower Ganges plain, deltas eastern coast India, Kerala; Sri Lanka (Ceylon) important both Dry Wet Zones. In islands East Asia wetrice less widespread than on mainland, but found Java central plain Luzon (Fig. 12). Although wet-rice much East, occupies small part total area. Rice tolerant wide range soils. requires high temperatures growing season, with mean monthly at least 20C three or four months, does not greatly restrict its range, grown Korea Hokkaido. Nor are minimum moisture requirements excessive, although ideally 1778 mm during which is, throughout area under discussion, period summer monsoon.