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新中国成立以来,经过一段时期的治理,基本上将历史遣留下来二千六百多年飞蝗灾害控制住了;适宜孳生飞蝗的环境(宜蝗区),也由解放初期的6000多万亩,压缩到1500多万亩。由于黄河入海口连年泥砂淤积成新的滩涂,河水滚动、河床位移、泥砂淤积,中下游不断出现新河滩;加上过去改治蝗区中失调,在经济和生态效益两差的情况下,有些已退耕还苇、还草:一些大型水库脱水干涸等情况出现:七十年代以来,不断形成约二百五十多万亩适宜孳生飞蝗的新蝗区。文革动乱期间,蝗区原设治蝗专业机构大部份归拼撤销,技术队伍迁升、老化、体解;
Since the founding of New China, after a period of governance, basically, the history has left more than 2,600 years of locust plague control. The environment suitable for breeding migratory locusts (Yixiancao District) also grew from over 6,000 in the early days of liberation Mu, compressed to more than 15 million mu. Due to silt deposition in the Yellow River estuary year after year into a new beach, river rolling, river bed displacement, sediment deposition, the middle and lower reaches of the new rivers continue to appear; plus past the remediation locust area disorders, economic and ecological benefits in the case of two poor, some Grasslands have been returned to cropland, but also grass: dehydration of some large reservoirs and other dry conditions have emerged: Since the seventies, the continuous formation of about 2.5 million acres of migratory locust suitable breeding locust area. During the turmoil during the Cultural Revolution, most of the original locust management agencies in the locust area were canceled and the technical teams moved up, aged and physically resolved.