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许慎在<说文解字>中对"法"字的经典解释,高度凝聚了秦汉时期人们关于"法"这一现象的认识,并影响了整个中国思想史.然而,当代学者对许慎的解释是否符合"法"字发生时代的原始意义提出了怀疑,从而启发我们重新探寻"法"字的原始意义.本文从"法"字本身表现的事实出发,从"水"廌"去"三个部分,分别检索古老的传世文献和地下出土文物,证诸神话传说和文化人类学材料、回溯到上古初民的社会生活中,重现了"法"的原始形象. 相似文献
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与时俱进努力塑造现代图书馆员全新形象 总被引：1，自引：0，他引：1
郭华 《农业图书情报学刊》2004,16(11):64-65
图书馆是人类科学文化的宝库,当今社会新思维、新技术的发展对图书馆服务功能提出了更高的要求,因此现代图书馆员应紧跟时代,努力进取,全力塑造现代图书馆员的新形象。本文便从仪表、知识形象、服务形象三方面详细论述了图书馆员必须要塑造适应时代需求的现代管理员形象,以适应时代的需求。 相似文献
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任何优秀的作家，其创作必然是过去、现在、未来三者的有机结合。狄更斯的小说在结构、道德意识、城市题材、人物等方面都既继承了过去的传统，又有自己的创造，同时暗含了未来小说的种子，甚至在某些方面开了未来小说创作的先河。这正是狄更斯小说盛行近200年而不衰的重要原因之一。 相似文献
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The emergence of a new sensor technology based on the use of ion‐selective membranes provides an increasing number of opportunities for on‐the‐go field measurements of soil nutrients and soil pH. In the future, on‐the‐go sensing should provide a cost‐effective monitoring of heterogeneous soils with high sampling resolution. It is suitable for site‐specific management because it can be focused on the spatial representativity of observation. This study evaluates the on‐the‐go‐sensing sampling design by comparing it with a standard approach to soil sampling for soil pH and the base nutrients P, K, and Mg under local field conditions in Germany. Soil samples were taken in two test sites at a resolution and in a manner as if they were sampled with an on‐the‐go sensing system and were compared with soil samples taken at a coarser resolution and with standard methods. In general, a higher variability was observed among the on‐the‐go samples due to their smaller sample support. The finer sampling resolution of the on‐the‐go design improved field‐scale semivariogram‐analysis results, identifying the spatial structures for soil pH, P, and Mg clearly. In addition, kriged maps of these soil parameters had predominantly higher estimation accuracies. However, the on‐the‐go samples were strongly influenced by the small‐scale variability of K in one of the test sites. This variability increased the kriging standard deviation for K by 50% compared with standard sampling design. Despite of this problem, the on‐the‐go‐sensing sampling design revealed field‐scale spatial variability for base nutrient status more accurately. Except for K, the mean absolute error of fertilizer‐application maps was reduced when using the on‐the‐go sample design in comparison with the standard sample design (Ca: 210/268 kg ha–1, P: 2.85/6.75 kg ha–1, K: 13.7/6.0 kg ha–1, Mg 5.7/6.8 kg ha–1). This will reduce over‐ and underfertilization using variable‐rate fertilizer‐application systems. In the future, it will be of interest if real on‐the‐go soil‐sensor measurements exhibit the same variability behavior addressed here or if results will differ substantially. 相似文献
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广东农垦是全国第三大天然橡胶生产基地，经过几十年的发展，广东农垦实施天然橡胶、剑麻等紧缺型热带、亚热带作物的种植、加工基地为重点的“走出去”战略，取得了突出成绩。但也存在投资品种少、投资地域窄，技术人才紧缺、投资资金较紧等问题，因此从政府决策层面和企业经营层面提出了相关建议。 相似文献
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通过对河北省25家农业对外投资典型企业进行历时5年的跟踪调查,以调研数据为基础,对河北省农业企业对外投资的规模、区域、企业特征进行了深入分析,并据此提出了河北省农业“走出去”企业面临的主要问题,最后分别从企业和政府层面提出了有针对性的对策建议,以期为河北省农业“走出去”提供理论指导。 相似文献
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NaCl胁迫对苜蓿和羊草苗期生长及养分吸收的影响 总被引：9，自引：2，他引：9
通过模拟试验研究了NaCl胁迫对苜蓿和羊草苗期生长及养分吸收的影响。结果表明 ,NaCl胁迫对苜蓿生长及养分吸收的影响明显高于羊草。在稳定供水条件下 ,羊草生长的临界土壤溶液NaCl浓度为 2.54mmol/L ,临界土壤总盐量为 0.59% ;苜蓿生长的临界土壤溶液NaCl浓度为 130mmol/L ,临界土壤总盐量为 0.35%。苜蓿的光合能力受盐胁迫的影响比羊草大 ,尤其是日最大净光合速率随盐度水平的增加明显降低。随土壤含盐量的增加 ,苜蓿和羊草植株N、P含有率变化较小 ,但积累量显著减少 ;K的比吸收率显著降低 ,植株K含量减少 ;植株Na的SAR随土壤盐分增加显著提高 ,Na含量不断积累增加 ,植株K/Na降低 相似文献
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