论文部分内容阅读
一、一般概况及灾害情形金龟(虫甲)为本省为害农作物主要害虫之一,一九五○年,普遍发生,尤以林县、荷泽、东阿等地为害最为严重,林县系山区、环境特殊,舆本省绝大多数县份情况不同,因此以荷泽为重点进行调查。荷泽东北距城约二十五里,包括:朱官屯、大郭集、骆屯、马庄、新庄等村,为一九三六年黄河临澲决口时的旧河床。地势低洼,若阴雨连绵副水深没膝,该区为淤土:表土三、四寸,经耕作、施肥及风化作用而逐渐改善,土壤较为疏松;下为胶泥土,深
I. GENERAL OVERVIEW AND CASE OF DISASTER The beetle (pest) is one of the main pests of crops harmed by the province. It was prevalent in 1950, with the most serious damage being in Linxian, Heze, , The environment is special, the vast majority of provinces in different provinces, so Heze as the focus of investigation. Heze is about 25 kilometers northeast of the city, including Zhu Guantun, Daguoji, Luo Tun, Mazhuang and Xinzhuang villages, and the old riverbed at the time of the Linyi rift in 1936. Low-lying, if the rain and water without knee, the area is silt: topsoil, four inches, after farming, fertilization and weathering gradually improved, the soil is more loose; under the clay soil, deep