自2005 年10 月,十六届五中全会明确提出新农村建设要求以来,“三农问题”、村庄规划日益引起关注.历年来,中央的一号文件也始终围绕着农村问题.当下,在新型城镇化的背景下,“美丽乡村”建设要不断壮大集体经济、增加村财收入,进而更好地为民办实事,带领农民致富.因此,村庄规划的内容和方法面临着从单纯物质空间整治的转变.笔者通过兰山村的实践,探讨以社会调研为基础,将“公众参与”普及到广阔农村,使“美丽
城市边缘区乡村地域转换郊野公园,存在一定数量的存量建设用地,其中主要为宅基地和工业用地.本文首先从城市边缘区乡村地域转换郊野公园面对的土地问题入手,分析宅基地、产业发展和农用地使用三方面所面临的主要问题.其次,从土地整治和增减挂钩、造血机制和生产要素集约、组团发展和长效管理三个角度探讨土地集约利用背景下的城市边缘区乡村地域转换郊野公园.最后,以洛阳周山郊野公园规划为研究对象,将基地融合到整个城市的
创新驱动和土地驱动是城市经济增长的主要驱动力,在城市发展的不同阶段,城市的不同空间,这两种驱动力对经济增长的影响是不同的.本文以专利申请数量表征创新驱动的城市增长;以土地招拍挂出让行为表征土地驱动的城市增长.选取我国15个城市的179个区县进行实证分析,得到了如下重要结论:①土地驱动的城市增长是低效的;②土地面积为300-500km2的区县创新驱动和土地驱动都很显著;③在城市功能拓展区、城市新区创
Turbulence in open-channel flow over a rough bed is very complex.Although many investigations have been undertaken, the current understanding of the roughness effect on the turbulent properties is sti
Shear stress and stream power have long been metrics for the stability of alluvial streams, but little is still known about their variation within a watershed.Large spatial variability in longitudinal
River constrictions are frequently encountered by engineers, and improper understanding can lead to designs that do not adequately protect against flooding.
To meet water level regulation requirements during the transition period during winter, a mixed operation scheme and relevant control algorithms are presented for the Middle Route of South-to-North Wa
This paper investigates the controls on the transformation mechanism among different channel patterns.A 2D depth-averaged numerical model is applied to produce the evolutions of channel pattern with c
The field measurement by tracking the floats is usually conducted to estimate flood discharge in rivers.It is assumed that the movement of floats is associated with flow velocity on water surface.
Overtopped cofferdam is often applied to the diversion of Mountain River because of the economy and rationality.It can reduce the size of diversion structure.