辑 中文名: 曲周县 英文名: Quzhou 所属地区: 中国 河北省 下辖地区: 曲周镇、安寨镇、侯村镇、河南疃镇、槐桥乡、南里岳乡、白寨乡、大河道乡、依庄乡、第四疃乡 建立时间: 1946 基于6个网
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Taken the Quzhou County as a case study, the evolving regularities and driving forces of farming system were studied, which can provide scientific evidence for regional agricultural development.
本文以河北省曲周县为例,在县域尺度上研究了耕作制度演变的规律和驱动力,为制定县域农业发展政策提供科学依据。
参考来源 - 县域耕作制度演变规律及其驱动力研究·2,447,543篇论文数据,部分数据来源于NoteExpress
汉武帝建元4年(公元前137年)始置曲周县。
Jianyuan Emperor 4 years (137 years BC), when they buy in Quzhou County.
不同作物和种植制度的养分平衡情况及不同农户的养分投入情况与曲周县的整体情况大体一致。
The nutrient balance in different kind of crops and cropping systems, as well as the nutrient input of different farmers were similar pattern with Quzhou county.
以河北曲周县北部盐渍土区为基地,重点研究了土壤和地下水以阴离子组分为基础的化学类型的动态,以及主要化学组分的垂向变化和动态。
The dynamics of chemical types and main components in vertical profile of soil and groundwater in salt affected soil area are focused in this paper.
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