职业大学的新开端新思路

从职业大学的现状和我国社会经济发展的形势出发 ,提出职业大学面向 2 1世纪的发展目标和应有的新开端、新思路 ,并着重对职业大学的人才培养模式、产学合作机制、继续教育、办学形式等进行了带有设想性的分析。     

Simulation of transpiration, drainage, N uptake, nitrate leaching, and N uptake concentration in tomato grown in open substrate

Free-drainage or “open” substrate system used for vegetable production in greenhouses is associated with appreciable NO₃⁻ leaching losses and drainage volumes. Simulation models of crop N uptake, N leaching, water use and drainage of crops in these systems will be useful for crop and water resource management, and environmental assessment. This work (i) modified the TOMGRO model to simulate N uptake for tomato grown in greenhouses in SE Spain, (ii) modified the PrHo model to simulate transpiration of tomato grown in substrate and (iii) developed an aggregated model combining TOMGRO and PrHo to calculate N uptake concentrations and drainage NO₃⁻ concentration. The component models simulate NO₃⁻-N leached by subtracting simulated N uptake from measured applied N, and drainage by subtracting simulated transpiration from measured irrigation. Three tomato crops grown sequentially in free-draining rock wool in a plastic greenhouse were used for calibration and validation. Measured daily transpiration was determined by the water balance method from daily measurements of irrigation and drainage. Measured N uptake was determined by N balance, using data of volumes and of concentrations of NO₃⁻ and NH₄⁺ in applied nutrient solution and drainage. Accuracy of the two modified component models and aggregated model was assessed by comparing simulated to measured values using linear regression analysis, comparison of slope and intercept values of regression equations, and root mean squared error (RMSE) values. For the three crops, the modified TOMGRO provided accurate simulations of cumulative crop N uptake, (RMSE = 6.4, 1.9 and 2.6% of total N uptake) and NO₃⁻-N leached (RMSE = 11.0, 10.3, and 6.1% of total NO₃⁻-N leached). The modified PrHo provided accurate simulation of cumulative transpiration (RMSE = 4.3, 1.7 and 2.4% of total transpiration) and cumulative drainage (RMSE = 13.8, 6.9, 7.4% of total drainage). For the four cumulative parameters, slopes and intercepts of the linear regressions were mostly not statistically significant (P < 0.05) from one and zero, respectively, and coefficient of determination (r²) values were 0.96-0.98. Simulated values of total drainage volumes for the three crops were +21, +1 and −13% of measured total drainage volumes. The aggregated TOMGRO-PrHo model generally provided accurate simulation of crop N uptake concentration after 30-40 days of transplanting, with an average RMSE of approximately 2 mmol L⁻¹. Simulated values of average NO₃⁻ concentration in drainage, obtained with the aggregated model, were −7, +18 and +31% of measured values.     

网站建设与公共图书馆的延伸服务

对公共图书馆网站建设进行了简要论述,阐明加强网站建设可以使公共图书馆延伸服务。     

浅谈我院图书馆期刊的管理

分析了漳州城市职业学院图书馆期刊管理存在的问题,并提出了建立合理的期刊管理模式,准确定位与形成特色,充分开发期刊资源,加强期刊管理人员队伍的业务素质建设等建议.     

农业高校科教扶贫工作的实施与思考

我校科教扶贫工作经过近十年的努力取得了令人瞩目的成绩，认为农业高校科技扶贫工作的主要措施应是：扶贫先扶志；重在教育扶贫、技术扶贫；注意科技扶贫，以农业技术推广带动当地人民脱贫；坚持互惠互利原则，把扶贫工作与学校的教学、科研紧密结合起来，推进产、学、研结合的进程。     

高等学校学生信息员作用的因素探讨

学生教学信息员制度是高等学校教学质量评估与保障体系的重要补充,是大学生参与学校教学管理的具体体现。实行学生教学信息员制度在稳定学校教育质量、反映课程教学动态、促进讲课水平的提高等方面发挥着重要作用。     

提高高职学生语文能力的实践探索

本文从高职语文教学中提高学生语文能力的实践探索入手 ,简要论述了高职语文能力的培养目标 ,着重阐述了以能力培养为主线 ,精心策划、认真实施语文能力训练和以实用有效为标准 ,科学合理地评价学生语文实践能力的具体做法。     

参考作物腾发量计算方法的适用性研究

选用5种方法,利用陕西6站的气象资料,计算了各站逐日ET0。并以FAO56 Penman-Monteith(P-M)法为标准,对其它方法进行评价。结果表明,在陕西6地区,5种方法计算的ET0变化趋势基本相同,但数值上有一定差异,所有的差异随ET0的增大而增大。Hargreaves法计算结果差异性较小,适用性较好;1948Penman和Priestley-Taylor二方法估值较FAO24 Penman法更接近P-M法的计算结果;缺气象资料时,Priestley-Taylor法可获得较好估值,且更适用于湿润地区;FAO24 Penman法也能获得较好结果,但其估值精度低于Priestley-Taylor法,一般不宜采用。同时分析了P-M法计算的ET0值和水面蒸发量之间的关系,为利用水面蒸发资料估算陕西6地区ET0值提供参考。     

大学生参加城镇居民医疗保险社会学探析

对当前我国大学生参加城镇居民医疗保险的意义、存在的问题、机制等方面进行了剖析,从社会学角度对大学生参加城镇居民医疗保险工作进行探析,借鉴社会学理论,为制定适合大学生的医保政策和参保的激励机制提供科学依据和理论支持,从而改善我国大学生医疗保障状况,提出完善大学生医疗保险工作的新思路。     

林科类专业大学生人文素质基本情况的问卷调查

文章调查和分析了林科类专业大学生人文素质的现状,从家庭背景和生活环境、教育观念、人文素质教育质量三个方面分析了学生人文素质较弱的原因,总结了其主要特征,建议高校转变教育观念,重视人文素质教育,加快林业与人文教育的有机结合,加强人文素质教育硬件和软件建设,提高学生人文素质。