现代节水农业技术浅析

从我国水资源现状出发,提出了发展现代节水农业技术的意义,并对现代节水农业技术的现状措施进行分析,提出了现代节水农业发展的前景及对策。     

发展生态高效节水农业的制度基础和政策措施

概述了国内外生态高效节水农业发展的理论研究、实践状况和我国生态高效节水农业发展中存在的主要问题 ,提出我省农村全面建设小康社会应以发展生态高效节水农业为突破口。     

晋中东部节水灌溉发展思路的讨论

晋中东部是传统的农业县,种植业是主要产业,近几年的持续干旱使农业生产损失巨大,发展节水灌溉势在必行。本文从产业结构调整、水资源合理利用、节水灌溉工程、农业节水和节水管理方面论述了节水灌溉发展的思路。     

河北省农业节水技术应用现状探究

河北省水资源短缺,是中国水资源与人口、耕地组合极不平衡的地区之一.农业节水技术是提高水资源利用效率的有效手段.通过对全省工程节水、生物节水和农艺节水技术统计数据研究表明,节水技术的应用范围较大,对全省粮食节水高产起着重要作用.对农户调查研究表明部分农业节水技术虽然得到一定程度的应用,但是远低于统计数字.河北省应继续加大力度推广农业节水技术.     

衡水市桃城区“一提一补”节水政策实施现状及问题分析

根据衡水市桃城区用水实际,以总量控制定额管理为核心,以农业节水为重点,以水价调节为手段,提出了"一提一补"节水激励机制,并将该机制在桃城区40余个村进行了试点实践。实践结果表明,"一提一补"节水激励机制体现了多用水受罚、少用水受奖的激励节水理念,充分利用价格杠杆,调动了农户节水积极性,使农户从"要我节水"变为"我要节水",为农业水价改革探索了一条新途径。     

实现农业高效用水的途径

我国水资源短缺与浪费并存，农业是用水大户．用水效率偏低．因此．农业节水势在必行。本文论述了适合我国基本国情的农业高效用水技术，主要包括：推广简便易行的节水灌溉技术、耕作覆盖保墒、节水灌溉与农业技术有机结合、以及改革灌区用水管理等。     

泸县节水农业发展潜力分析

水在农业发展中起重要作用,发展节水农业是缓解水资源供需矛盾、提高农业综合生产能力的重要途径。建设节水型农业,提高水的有效利用率,坚持节水灌溉、坚持节水农业的发展,不断改善和完善农业生产条件,将促进水资源可持续利用和社会经济可持续发展。本文获取泸县耕地面积、主要农作物种植面积、水资源利用及水利工程变化数据,主要农作物平均灌溉定额和节水灌溉定额数据,运用灰色预测法对泸县未来几年的主要农作物灌溉用水量进行预测,结果显示:2014-2017年水稻、玉米、小麦在采用节水技术后共计用水量分别为:14.2亿m3、11.08亿m3、0.46亿m3,共计节水量分别为:14.04亿m3、11.41亿m3、0.59亿m3。研究得出:应该大力发展节水农业.改进节水技术.提高水的利用率.节约水资源。     

浅析农田水利节水灌溉

介绍我国水资源现状和农业用水状况,通过分析节水灌溉的发展趋势,指出了在我国农业节水灌溉的现状和推广中出现的问题,并针对出现的一系列问题,并提出了相应的对策.     

宝鸡峡灌区高产小麦节水灌溉制度探讨

随着人口的不断增长和水资源的日益短缺,发展节水高效农业是主要目标。节水灌溉作为一种有效的方法被广泛应用。然而,如何充分发挥节水灌溉的优势,就需要对其有深刻的认识和理解。本文通过对陕西宝鸡峡灌区小麦不同生育期需水量的研究,制订了科学合理的节水灌溉制度,为今后该地区的农业生产提供了重要的依据。     

甘肃省农业节水的主要措施和技术路线

甘肃省水资源的利用中,农业用水、工业用水、生活用水分别占总用水量的80.31%、14.11%和5.58%.由此可见,甘肃省节水的重点应该是农业,即提高农业用水的效率.因而必须以学科交叉性的重大前沿性技术研究为出发点,研发与农业节水相关的重要关键技术,探索建立适合本国国情、本地实际的现代节水农业技术体系.     

GOVERNANCE OF EDUCATION IN PAPUA NEW GUINEA: THE ROLE OF BOARDS OF GOVERNORS

Boards of Governors have been in existence since the early 1970s as part of Papua New Guinea's effort to allow local participation in educational decision-making. This study investigates their role in the governance of provincial high schools in Papua New Guinea. From the findings, lessons that can be learnt by those who are intending to introduce school governance at the individual institution level have been stated. The data were obtained through a questionnaire, semi-structured interviews, observation of meetings, and document analysis. Participants included principals, teachers, students and community representatives. In general the Boards are involved in administrative functions only. They are not involved in the main technology of the schools: teaching and learning. It is recommended that consideration be given to delegating some curriculum powers to the Boards. Further, training is required for principals and Board members to strengthen the Boards' effectiveness.     

Empirical study on mutual fund objective classification

Mutual funds are usually classified on the basis of their objectives. If the activities of mutual funds are consistent with their stated objectives, investors may look at the latter as signals of their risks and incomes. This work analyzes mutual fund objective classification in China by statistical methods of distance analysis and discriminant analysis; and examines whether the stated investment objectives of mutual funds adequately represent their attributes to investors. That is, if mutual funds adhere to their stated objectives, attributes must be heterogeneous between investment objective groups and homogeneous within them. Our conclusion is to some degree, the group of optimized exponential funds is heterogeneous to other groups. As a whole, there exist no significant differences between different objective groups; and 50% of mutual funds are not consistent with their objective groups.     

Empirical study on mutual fund objective classification

INTRODUCTION Financial theory and practices suggest thatmutual funds can use information advantage andsubdivide financial markets according to prefer-ences of investors. They are the reasons for the em-ergence and tremendous development of the mutualfund industry in recent decades. Mutual funds in-vestors have different risk preference resultingfrom different levels of income, resources of in-come and psychological characters. Consequently,they will choose mutual funds to suit their needs…     

节水用水器具的节水效益分析与工程应用

介绍了节水用水器具的使用要求和工作原理,通过比较计算,使用节水用水器具比普通用水器具每人每天节水大约50 L/人·d,节水器具的节水效益显著,最后提出推广使用节水用水器具的措施,促进水资源的可持续发展。     

多媒体网络课件特点及制作

多媒体教学以其不断完善的人机交互方式和越来越强大的功能，吸引着许多人的注意，其优势特点已渐渐体现出来，现在运用多媒体教学这一教学方式的教师队伍正不断壮大，网络时代的优势在于跨时空的教学资源共享，降低了成本，提高了知识的利用价值，可以让任何人在任何地点，任何时间学习到最需要的知识，因此集合多媒体教学和网络教学双重优势的多媒体网络教学将是现代教育发展的一个重要趋势。     

浅谈石堡川灌区节水工程建设与效益分析

节水型灌区建设是水资源优化配置直接有效的途径。本文通过介绍石堡川灌区工程和水资源的现状,分析水资源供需平衡对节水型灌区建设的重要性,探索灌区工程节水改造内容和实施后的效益,以此为同类灌区节水改造提供参考。