ASPECTS OF RIDGING AND CROPPING FOR GULLY RECLAMATION

来源 :International Journal of Sediment Research | 被引量 : 0次 | 上传用户:paokahh
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The history of a gully which developed on a slope at the campus of the Federal University of Technology, Owerri, Nigeria is briefly discussed. Civil engineering measures were taken to cut off the upstream catchment area, close the gully with bulldozers and construct contour bands to divide the slope in sections. Subsequent agricultural development of the area had not been completed which continued the threat of renewed gully formation An experimental field was established on the 2 ha slope where field trials were set up of ridging and cropping to develop proper methods to complete the gully reclamation process. The selected cropping patterns for different sections of the field and problems encountered in the research are discussed. Some concluding remarks and recommendations are made: 1) Hydrology 2) plant protection 3) agronomy at the Federal University of Technology, Owerri - Nigeria. The history of a gully which developed on a slope at the campus of the Federal University of Technology, Owerri, Nigeria is briefly discussed. Civil engineering measures were taken to cut off the upstream catchment area, close the gully with bulldozers and construct contour bands to divide the slope in sections. Subsequent agricultural development of the area had not been completed which continued the threat of renewed gully formation An experimental field was established on the 2 ha slope where field trials were set up of ridging and cropping to develop proper methods to complete the gully reclamation process. The selected cropping patterns for different sections of the field and problems encountered in the research are discussed. Some concluding remarks and recommendations are made: 1) Hydrology 2) plant protection 3) agronomy at the Federal University of Technology, Owerri - Nigeria.
其他文献
随着新一轮课程改革的不断深入,教师的教学观念和方式都已经发生了可喜的变化,合作学习、探究学习等现代教学方式已广泛运用于小学语文课堂教学,课堂教学逐渐活了起来。然而,
食品添加剂标准我国食品添加剂相关标准主要包括相关的国家标准(GB)、卫生部公告、行业标准(化工、轻工、林业、粮食、石油化工等)及中华人民共和国药典等。(一)食品添加剂质
根据课文的特点和手法,运用“模仿、想象、感悟和改写”手段,让学生在练笔中提高写作技巧和水平。 According to the characteristics of the text and techniques, using
班主任的工作是琐碎的:迟到的、早退的、打架的、骂人的;得满分的、不及格的;因为一点小事发生摩擦的……每一件事单独看来,都是微不足道的,可是每一件事都可能成为学生的十
沈阳西东控制技术有限公司,是我国建设部首批建筑智能化(甲级)系统集成商、欧洲智能建筑协会成员,日前与石家庄铁路工程职业技术学院充分协商,决定双方优势互补,以石家庄铁路工程职
计算能力是每个人必须具备的一项基本的数学能力,抓好课堂教学,可以有效提高学生的计算能力。那么如何抓好课堂教学,有效提高学生的计算能力呢一、自主探究、探清算理、掌握
创设适合学生的语文教学氛围,充分利用语文的多方面教育功能,是促进学生素质发展的根本途径,也是语文教师的重要职责。 The creation of a language teaching atmosphere su
我们把时间拉回到1999年,大家还在电脑房里大呼小叫玩着《星际争霸》,当然,只是和同在一个电脑房里的伙伴们对战,当时网络服务可以说还是一种奢侈品。同一年,盛大在上海成立了,6年之后在纳斯达克上市,给中国互联网带来了一场前所未有的革命。因为网络游戏行业的蓬勃发展,网游媒体也开始逐渐成为IT媒体里的一支新军。    忆当年    从2000年开始。全国各地的电脑房纷纷被改成网吧,中国互联网的普及时代真
鲁迅先生说:教育是根植于爱的。苏霍姆林斯基也说过:“教育技巧的全部奥秘就在于如何爱护学生。”“爱”是教育中重要因素,它是一种发自内心的热情,是教师教育学生的前提,也
对管理人员的培训,是企业不可缺少的投资之一。怎样才能确保培训投资获得有效回报,即用什么样的模式才能更有效地培训企业的这些骨干力量?以下5个问题决定了你的培训成效。明