开发区土地集约利用强度潜力分析——以桐梓县娄山关经济开发区为例     

张杭杭  周国富 《西部资源》2011,(5):44-45

本文以桐梓县娄山关经济开发区为例,在对开发区进行实地调查的基础上,计算该开发区的工业用地容积率、建筑系数和固定资产投入、产出强度的现状值,然后通过综合考虑确定其目标值,采用目标直逼法,测算出开发区各类强度潜力值,最后对其结果进行分析,以此提出开发区未来发展的对策与建议。  相似文献   

开发区不同行业工业用地集约利用水平评价——以辽宁省北票开发区为例     

张程光  曲哲  任家强  李楠 《山东地质》2011,(7):57-60

以北票开发区为研究对象,通过对不同工业行业进行划分,建立不同行业工业用地土地集约利用水平评价指标体系,应用多因素综合评价模型对开发区内不同行业工业用地集约利用水平进行了测算,揭示其集约利用水平及其差异性,研究结果表明：北票开发区整体工业用地集约利用水平较高,其中纺织业、服装及其他纤维制品制造业和化学原料及化学制品制造业用地集约水平最高,而饮料制造业用地集约利用水平最低。  相似文献   

蓬莱市农村宅基地集约利用研究     

刘向华  陈广博 《山东地质》2011,(6):51-53

针对蓬莱市农村宅基地利用现状,选取3个典型的宅基地集约利用乡镇,对宅基地集约利用存在的问题进行分析,从而提出合理可行的政策措施,来指导农村宅基地集约利用工作的展开,提高宅基地集约利用率。  相似文献   

临朐县土地节约集约利用探析     

郎卫卫  张元涛  段新功  张静 《山东地质》2011,(3):55-56,59

临朐县结合当地山多地少,土地后备资源严重不足的县情实际,不断创新措施,立足＂增量指标保重点,一般项目靠挖潜＂,围绕低效闲置土地、储备未供土地、旧城改造和迁村并点以及让企业向园区集中,最大限度提高企业集中度与土地产出率等方面,千方百计盘活挖潜存量土地,努力拓展土地利用空间,破解土地制约瓶颈。同时,注重依法科学管理,严把用地预审、审批和批后监管等环节,使节约集约用地取得了明显成效,保障了当地经济健康发展。  相似文献   

Are red tides affecting economically the commercialization of the Galician (NW Spain) mussel farming?     

Gonzalo Rodríguez Rodríguez  Sebastián Villasante  María do Carme García-Negro 《Marine Policy》2011

Harmful algal blooms (HABs), more specifically red tides, are among the most critical environmental factors affecting mussel cultivation in Galicia (NW Spain), and they often have been blamed for economic losses for producers. This statement is based on the correlation between days of closure of the production areas and unsold product. The present article shows that such a statement is not always correct, at least in the case of Galician mussel farming, because red tides only cause losses to producers under specific circumstances that arise from the impossibility of placing their product in the market. In addition, this article reveals the importance of finding organizational solutions within the framework of the production sector to counteract the impact of this type of phenomenon.  相似文献   

城市土地集约利用与区域城市化的时空耦合协调发展评价——以环渤海地区城市为例   总被引：24，自引：2，他引：22  

刘浩  张毅  郑文升 《地理研究》2011,30(10):1805-1817

处于城市化不同发展水平的城市,其土地集约利用的利用强度、利用形式与利用类型存在显著差异,城市土地利用最佳集约度与城市化水平密切相关,而城市土地集约利用与城市化的耦合协调可有效推动城市可持续发展。基于城市土地集约利用与城市化的交互耦合作用机制,本文构建两者之间的耦合协调发展度模型,定量评价城市土地集约利用与城市化的耦合协...  相似文献   

农谚在河南冬小麦种植及气候适应中的应用     

尹君  苏筠 《地域研究与开发》2011,30(4)

农谚是反映人地关系的地方性知识,研究其在农业生产中的应用及适用性,有助于理解人地关系的变迁及地域特点。收集整理河南冬小麦种植的农谚,归纳总结了冬小麦生育期的农谚时序表。进而利用洛阳、开封、信阳1951—2003年的气象观测数据,分析农谚与气候适应的关系。结果显示,随着气候的变化,农谚中的冬小麦适宜播种期比气象实测的适宜播种期略微早。农谚指出冬小麦越冬期怕冬暖,拔节孕穗期间怕春寒及灌浆需晴暖天气,均与实际观测的气象数据相符合。农谚指出了冬小麦缺水及容易出现旱情的生育阶段,并以此进行旱灾适应。  相似文献   

城镇土地集约利用研究   总被引：47，自引：1，他引：47  

许树辉 《地域研究与开发》2001,20(3):67-69,74

小城镇发展战略地位的确立，加速了城镇化进程，城镇化过程中的用地粗放与人均耕地锐减之间的矛盾，是提出城镇土地集约利用的依据。从城镇土地集约利用内涵界定入手，分析了城镇土地集约利用的必要性，探讨了城镇土地集约利用定量评价的原则，从城镇存量土地产出率、土地利用强度、土地投入强度和土地可持续度4个方面建立了城镇土地集约利用评价指标总系统。指出城镇发展与土地集约利用的途径。  相似文献   

Stream water chemistry and quality along an upland–lowland rural land-use continuum, south west England     

H.P. Jarvie  P.M. Haygarth  C. Neal  P. Butler  B. Smith  P.S. Naden  A. Joynes  M. Neal  H. Wickham  L. Armstrong  S. Harman  E.J. Palmer-Felgate 《Journal of Hydrology》2008,350(3-4):215-231

This study examined stream water quality across a range of catchments which are representative of the key environments and land uses of rural south-west England. These catchments included: (a) an acidic upland headwater catchment, rising on the moorlands of Dartmoor, with low-intensity sheep rearing; (b) a headwater catchment rising on the weathered granite lower slopes of Dartmoor, with cattle farming; (c) a lowland headwater clay catchment with sub-surface drainage and high intensity livestock farming, fodder crop cultivation, and hard-standing/slurry storage; and (d) the main River Taw, a lowland river system receiving drainage from a range of tributaries, exemplified by the above catchment types. Variations in water chemistry and quality were observed along an upland–lowland transition, from headwater streams to the main river channel. Within the livestock-dominated headwater streams, total phosphorus (TP) was dominated by particulate phosphorus (PP). These PP concentrations appeared to be mainly linked to two sets of processes: (1) in-stream sediment precipitation with sorption/co-precipitation of phosphate and/or localised in-channel mobilisation of sediment (by cattle or channel-clearing operations) under low flow conditions, and (2) sediment erosion and transportation associated with near-surface runoff during storm events. Under baseflow conditions, in-stream and/or riparian processes played a significant role in controlling general nutrient chemistry, particularly in the headwater streams which were heavily impacted by livestock.  相似文献   

Effects of copper and the sea lice treatment Slice on nutrient release from marine sediments     

D.J. Mayor  M. Solan  K. Killham 《Marine pollution bulletin》2009,58(4):552-558

Copper-based antifoulant paints and the sea lice treatment Slice^® are widely used, and often detectable in the sediments beneath farms where they are administered. Ten-day, whole sediment mesocosm experiments were conducted to examine how increasing sediment concentrations of copper or Slice^® influenced final water column concentrations of ammonium-nitrogen (NH₄-N), nitrate + nitrite-nitrogen (NO_X-N) and phosphate-phosphorus (PO₄-P) in the presence of the non-target, benthic organisms Corophium volutator and Hediste diversicolor. Nominal sediment concentrations of copper and Slice^® had significant effects on the resulting concentrations of almost all nutrients examined. The overall trends in nutrient concentrations at the end of the 10-day incubations were highly similar between the trials with either copper or Slice^®, irrespective of the invertebrate species present. This suggests that nutrient exchange from the experimental sediments was primarily influenced by the direct effect of copper/Slice^® dose on the sediment microbial community, rather than the indirect effect of reduced bioturbation/irrigation due to increased macrofaunal mortality.  相似文献