我国是世界上栽培水稻最古老的国家之一,具有7000年以上的历史,悠久的稻米生产孕育了灿烂的农耕文化,具有种植面积广、食用人口多、总产比重大、单位面积产量高、生态效应好等特点。南至海南三亚、北至黑龙江漠河、西至天山山麓,高至海拔2695m的云南宁蒗都有水稻分布,除青海省 China is one of the oldest countries in the world to cultivate rice. With a history of more than 7,000 years, a long period of rice production has given birth to a splendid farming culture. With a large planting area, a large population of food, a large proportion of total output and a high yield per unit area, Good ecological effect and so on. South to Hainan Sanya, north to Mohe, Heilongjiang, west to Tianshan foothills, up to an altitude of 2695m Yunnan Ninglang have rice distribution, in addition to Qinghai Province