内黄林场优势树种龄级结构优化调整及评价

龄级结构是反映林分结构是否合理的主要方面,而建立森林收获调整模型是对龄级结构优化调整的重要途径。以河南省内黄林场优势树种杨树和刺槐为研究对象,基于林场2018年森林资源二类调查数据,利用线性规划和目标规划方法对林场优势树种龄级结构进行优化调整,并采用欧氏距离和平衡率对调整结构进行评价。结果表明:在调整期末各龄级面积分布均衡,2个树种龄级结构的平衡率均达到0.96,欧式距离缩小至85%以上,其中刺槐缩小达100%,接近法正状态;优势树种杨树和刺槐调整期内出材量分别达68 059.3m^3和15 358.4m^3,期末蓄积量分别占初期的127.6%和46.5%;优势树种杨树和刺槐碳储量期末分别达到26 797.4t和4 415.4t,分别占初期的111.3%和85%。     

基于高职教育的《药用植物学》课程目标研究

在介绍高职教育课程标准的价值取向及确定课程目标的依据的基础上,提出了《药用植物学》课程目标及其实现途径。     

基于工程目标训练的金工实习教学实践探索

针对我国高等工科院校培养的毕业生普遍存在工程实践训练(金工实习)不足,实践能力和创新能力不够的问题,借鉴国外"大工程"教育观和工程科技人才培养模式,紧密结合未来创新型、综合型、工程型高素质科技人才所需要的能力素质,在高校中探索以工程目标为教学导向的实习教学模式,为工科学生提供逼真的工程实训模式。     

Optimal utilisation of natural resources for agricultural sustainability in rainfed hill plateaus of Orissa

The climatic data for 17 years from 1988 to 2004 of the rainfed hill plateaus of Kandhamal district of Orissa (India) were analyzed to find out the monthly climatic index from the calculated values of effective rainfall and evapotranspiration. The 80% dependable monthly climatic index was correlated with crop coefficient and suitable cropping period and sequences for the study area were suggested based on it. The extent of investment, net return and soil loss from agriculture were estimated as per the present condition and for the suggested cropping patterns. A mathematical model was formulated for optimal allocation of area to different crop sequences with different objectives viz. minimization of soil loss, minimization of investment and maximization of net return from agriculture and was solved using linear goal programming technique. The model suggested to take up food crops in area of 1,30,777 ha and perennial grass cover in 3223 ha with a cropping intensity of 1.61 resulting in a net return of Rs 1064.775 millions sustaining soil loss to a tune of 9489.67 thousand tons per year. The model was found to be favourable in respect of higher net return of Rs 8862.34 and lesser soil loss of 23.41 tons/ha than the corresponding present values. But more investment of Rs 4489.01 per ha was required to fulfill the objectives.     

基于目标分析法及熵权法的后农业税时代农地政策评价

在详细介绍目标分析法评价农地政策的方法特点及步骤的基础上,对后农业税时代甘肃省河西4市的农地政策进行了评价。结果表明:从横向比较来看,在4个城市中酒泉市农地政策目标的实现程度最高,明显优于张掖市和武威市;以2003年的综合指数为参照值进行纵向比较,武威市的综合指数呈逐年递增趋势,张掖市的综合指数总体上呈逐年递增趋势(2005年的综合指数是一个例外),酒泉市的综合指数也总体上呈逐年递增趋势(2006年的综合指数是一个例外),而金昌市的各年度综合指数有所反复,呈不稳定状态。     

促使学生参与自我评价与目标设定——完善学生档案袋在形成性评价中的作用

学生档案袋受到人们越来越多的关注。但作为自我评价的主体，学生并不能积极充分地参与到自我评价和目标设定中去，从而使其所具有的形成性评价的功能受到了限制。文章探讨了教师在促进学生主动参与自我评价和目标设定中所发挥的作用及可采取的措施。     

Efficiently mapping an appropriate thinning schedule for optimum carbon sequestration: An application of multi-segment goal programming

Thinning is an important strategy for carbon sequestration in forest management. Linear programming (LP) and goal programming (GP) can only set fixed parameters for the left hand side constraints, which are incapable of simulating different thinning intensities at thinned stands to map an appropriate thinning schedule for optimum carbon sequestration efficiently. However, multi-segment goal programming (MSGP) with the flexibility to set multi-level parameters can be applied by forest managers to quickly choose an appropriate level from different thinning intensities.The purpose of this study was to combine MSGP with LP to efficiently adopt thinned area and thinning intensity together as decision variables. In a demonstrated case, an appropriate thinning schedule for three age-classes was chosen from 768 combinations of thinning intensity in just one step. Each age-class was allocated well such as practicing medium thinning intensity on young age-class and strong thinning intensity on the old age-class. Totally 1379643.03 tons of carbon sequestration was obtained after two planning horizons, which was 34.75% higher than no thinning. Besides, a stable supply of wood form thinning is made for carbon sequestration in each period and the stocking of each age-class is also improved.     

加强校企合作,培养汽车类创新型人才

结合河北农业大学长城汽车学院的实际状况,从汽车专业的人才培养目标、教学模式、教学内容等方面出发,论述了校企合作在理论教学和实践教学上的优点.河北农业大学与长城汽车公司合作,每年汽车类的毕业生到企业实习一年.在一年的时间内,通过动力车间、焊装车间、涂装车间、模具中心等不同工种的学习,使学生很好地将理论知识运用到实践中去,...     

中国海洋类高等院校定位研究

在综述高校定位理论基础上,结合海洋类高等院校自我定位的现状,分析海洋类高等院校发展定位存在的两大误区：理念上追求＂类型求全、层次攀高、规模求大、水平一流＂;行为上存在办学特色缺失。海洋类高等院校定位重构因应方略是,充分建构由政府、高校与市场三个主体参与的适度引导、自我分析、面向市场的运作机制。     

高校二级学院教学管理信息系统的设计与应用研究——以河北农业大学商学院为例

随着高校规模的不断扩大,专业设置、任务布置环节、教师人数不断增多,使得教学管理信息系统成为了学院信息系统的重要组成部分。以河北农业大学商学院为典型案例,把改革教学管理模式、形成初步的教学管理无纸化办公、加强教师间的沟通、建立完整的教学质量评价体系和提高教学管理效率及管理水平作为设计目标,建立完全的教学资源共享和交流平台,方便教师使用,加强教师和教师及教务间交流,形成安全可靠的系统平台,达到初步的教学管理无纸化办公、规范教学文件管理、提高工作效率和提高学院教学管理水平、建立完善的教学质量评价体系的效果。