陕西渭北旱原苹果种植区划与产业发展战略

通过生产典型调研、统计数据分析与ArcGIS数据处理,得出渭北旱原苹果业发展成就与存在问题,突出表现为果园土壤干燥化严重,水利设施发展不足,种植区域布局不够明确,品种结构不合理,果品加工贮销企业规模小,果业产业化水平偏低,苹果产业社会化服务体系尚不健全等问题。在现有地形、植被、气象等资料的基础上提出将渭北旱原苹果种植区可分为西部山地沟壑中晚熟苹果区(Ⅰ区)、中部残原沟壑中晚熟苹果区(Ⅱ区)、北部高原沟壑晚熟苹果区(Ⅲ区)和东部台原沟壑中晚熟苹果区(Ⅳ区)等4个功能区域。在功能划分的基础上,"十二五"期间渭北旱原苹果产业发展战略措施概况为:优化生产布局、调整品种结构,扩大绿色果品基地规模,高海拔地区以晚熟品种苹果为主,低海拔地区重点发展中早熟及加工鲜食兼用品种;通过树立可持续发展理念,加强新技术推广力度,推进"果畜"结合,培育加工和贮销龙头企业,组建专业合作组织,开拓国内国际销售市场等手段建立市场化长效机制,提升苹果产业化程度。     

生态与景观的理性融合——湖州长田漾湿地公园概念性规划

以湖州长田漾湿地公园概念性规划为例,探讨在规划中运用景观生态学相关理念构建良好的区域生态格局、采用生态技术恢复和营造湿地景观、通过生态手法恢复地方性植被和挖掘乡土素材构建乡土景观等,实现科学保护与合理利用湿地,生态与社会价值并举的规划思路。     

浅谈农业区域规划图件的设计

概括了农业区域规划图件的设计原则、思路、编制内容和技术支持,并以天津滨海观赏鱼科技园区总体规划和北辰现代农业总体规划为例,对此类规划的图件设计进行了简要分析,提出进一步提高图件设计水平的几点建议。     

How does industrial agglomeration affect regional innovation? A spatial econometric analysis

This study empirically investigates the direct and indirect (spillover) effects of three types of industrial agglomeration with different cognitive distances, namely, industrial specialization, industrial related variety, and industrial unrelated variety, on regional innovation. Accordingly, we applied the concepts of related and unrelated variety and used spatial econometric analysis. Based on panel data of 283 Chinese cities from 2004 to 2016, the empirical results reveal that both industrial specialization and industrial related variety significantly improve regional innovation and produce positive spatial spillover effects on the surrounding regions. However, industrial unrelated variety has a significant negative impact on regional innovation and produces a negative spatial spillover effect on the surrounding regions. Moreover, the direct and indirect effects of the three types of industrial agglomeration on regional innovation between China's coastal and inland cities. The findings have important theoretical and policy implications.     

景观规划控制构建城市特色研究

通过对欧美和日本等国景观规划控制的总结和我国景观规划控制现状的分析,促使在借鉴他国先进经验的基础上,结合我国实际情况,提出相应的手段与方法以提升我国景观规划控制水平,并展望新的目标,以有效保护和构建有特色的城市形象。     

刍议城市规划中的环境保护问题思考

城市的可持续发展离不开科学、合理的城市规划。城市规划必须考虑到城市的发展和人们生活的方方面面的问题,其中,城市规划中的环境保护问题更是重中之重,必须受到城市规划者的高端重视。本文论述城市规划中的环境保护问题。     

风险管理中的公众参与问题研究

基于风险社会和民主社会的研究背景,通过对风险管理的组织流程进行分解,把握风险管理的内容和目标,对应分析了各流程中参与主体的定位和作用。依据对现状问题的分析和总结,将公众参与融合到风险管理的各流程中,依次提出了针对性的方法建议,以修正目前存在的不足。最后从城市规划的视角出发,探讨了利用城市公共安全规划,将风险管理与城市规划有机结合起来,利用城市规划的公众参与平台,真正地让公众参与到风险管理中。     

Spatial optimization by simulated annealing and linear programming

Forest management planning comprises selection among treatment alternatives in management units. A traditional linear programming (LP) approach may effectively account for a profit maximization objective combined with sustainability constraints, e.g. on the temporal distribution of harvest volume flows, cash‐flow, and net present value development, but it fails to account for spatial constraints, especially those associated with final felling. By applying a simulated annealing adjacency model based on net present value maximization and combined with an LP consequence computation model, it is possible to delineate optimal strategies of final felling scheduling. Evaluation is made of the trade‐off between (1) the incremental cost (determined by use of the LP model) of an optimal adjacency model solution, and (2) the potential damage cost resulting from adjacency characteristics such as windthrow and bark injuries. The decision support system may contribute significantly to reduce damage costs and may improve the reliability of forest management planning.     

机关企事业单位附属绿地规划设计研究

本文以城市绿地系统规划理论为基础,以陕西机关企事业单位的绿地规划为对象,探讨了公共事业庭院绿地规划设计的原则;公共事业庭院附属绿地典型区域规划设计的原则、方法与植物配置,为构建陕西事业单位绿地景观的可居、可行、可游、可赏提供决策依据。     

泾惠渠水利风景旅游区总体规划设计

通过分析和评价泾惠渠水利风景旅游区的旅游资源特征及价值,确定旅游区的性质、目标和规划原则,阐述了旅游区的规划布局、功能分区,并提出相关的规划建设建议和措施。