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河源县位于广东省东北部,东经114°40′,北纬20°40′。山多林密,雨量较多,年平均降雨量在1881.8毫米以上,相对湿度为77%。气候温暖,平均温度为21.1℃,属亚热带海洋性气候。全县人口54万多,是以农业为主,林业为辅的地区。每年夏秋季节,是野生磨菇大量生长的好时机,当地人民喜采野磨菇作食用,但由于有毒磨菇与食用磨菇的种类不易区别,致使每年均有因误食毒磨菇中毒的病例发生。从1963～1979年的十七年中,初步统计共发生515例,死亡36例。
Heyuan County is located in the northeast of Guangdong Province, longitude 114 ° 40 ’east, latitude 20 ° 40’. Hill more forest dense, more rainfall, the average annual rainfall of 1881.8 mm above, relative humidity of 77%. The climate is warm, the average temperature of 21.1 ℃, is a subtropical maritime climate. The county population of 540,000, is dominated by agriculture, forestry, supplemented areas. Each summer and autumn, is a good time to grow a large number of wild mushrooms, the local people like mining wild mushrooms for consumption, but due to the types of toxic mushrooms and edible mushrooms is not easy to distinguish, resulting in annual poisoned mushroom poisoning Case occurred. In the 17 years from 1963 to 1979, a total of 515 cases were initially reported, with 36 deaths.