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河南省河泛蝗区的分布,自西向东包括三门峡、洛阳、郑州、焦作、开封、新乡、濮阳等黄河两岸的7市21个县(区)。由于黄河水位和流量变化及河流改道形成大面积滩地,每年雨季过后汛水退去,滩地杂草丛生,发展为东亚飞蝗适生区,这种地方和非泛水的荒滩均被称为“河泛蝗区”。 河南省境内黄河的现行河道由3个不同时期的河段形成,自孟津至武涉沁河口是古代的禹河道;沁河口至兰考东坝头为明清时
The distribution of Panchromatic Locust in Henan Province includes 21 counties (districts) in 7 cities across the Yellow River in Sanmenxia, Luoyang, Zhengzhou, Jiaozuo, Kaifeng, Xinxiang and Puyang from west to east. Due to the change of water level and flow of the Yellow River and the diversion of rivers, a large area of beach land is formed. After the rainy season, the flood water recedes each year, and the weeds in the beach land are developed into the suitable habitat for the locust. The deserted beaches are called “ River Pan Locust Area. ” The current river of the Yellow River in Henan Province is formed by three different periods of river sections. From Mengjin to Wuhe, Qinhekou is the ancient Yuhe River. From the Qinhekou to Lankao Dongba head is the Ming and Qing Dynasties