期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
合肥巢湖经济开发区半汤温泉开发利用分区建议 被引量:1
1
作者 吴兴付 《西部探矿工程》 CAS 2019年第6期163-164,169,共3页
通过对区位优势、资源价值、开发现状的评述,研究了半汤温泉在城镇经济发展、生态环境建设、和谐社会建设中的需求,分析了拓展温泉康乐保健、理疗洗浴、地热采暖、生态养殖等开发利用空间;最后,立足资源条件和产业规划,划定东北部养生... 通过对区位优势、资源价值、开发现状的评述,研究了半汤温泉在城镇经济发展、生态环境建设、和谐社会建设中的需求,分析了拓展温泉康乐保健、理疗洗浴、地热采暖、生态养殖等开发利用空间;最后,立足资源条件和产业规划,划定东北部养生保健休闲区、西北部农业植殖观光区、南部住宅场房供暖区,引导地热产业重点发展,保障生态文明建设。 展开更多
关键词 半汤温泉 开发利用 分区建议
下载PDF
大跨度双曲屋盖分区风压系数研究 被引量:1
2
作者 孙芳锦 徐中豪 梁爽 《西安建筑科技大学学报(自然科学版)》 北大核心 2019年第5期660-668,共9页
大跨度双曲屋盖结构形状复杂,目前国内外规范尚未对此类结构的风压系数给出明确规定.为此,本文针对四种典型形状大跨度双曲屋盖,研究其分区风压系数,为工程实践提供有利参考.首先研究分析流场参数、屋盖自身的几何参数等对其表面风压分... 大跨度双曲屋盖结构形状复杂,目前国内外规范尚未对此类结构的风压系数给出明确规定.为此,本文针对四种典型形状大跨度双曲屋盖,研究其分区风压系数,为工程实践提供有利参考.首先研究分析流场参数、屋盖自身的几何参数等对其表面风压分布的作用,分析得到最不利参数.然后针对各大跨度双曲屋盖的特点,分析并总结出在常用工程高度范围,各典型形状的大跨度双曲屋盖的分区风压系数建议值,并与现行规范中的类似情况比较,为类似结构的实际工程抗风设计提供有益的理论支持和实际参考. 展开更多
关键词 大跨度双曲屋盖 影响参数 风压分布特性 风压分区建议
下载PDF
浅谈山西玉米的合理施肥
3
作者 元新娣 罗小蓉 《农业技术与装备》 2009年第06X期52-53,共2页
当前,玉米已成为山西省第一大粮食作物,从历史变迁分析玉米产量与施肥的关系,确定了肥料在玉米生产中的重要地位。通过对玉米田施肥状况的调查和玉米生育养分的研究,给出了山西省不同生态区域玉米田施肥的建议。
关键词 玉米种植 产量 施肥 分区建议
下载PDF
Farmer-based Rice Cropping Systems in the Poyang Lake Region, China: Analysis of Characteristics and Policy Implications 被引量:2
4
作者 Khampheng BOUDMYXAY LI Peng +2 位作者 XIAO Chiwei SHEN Lei ZHONG Shuai 《Journal of Resources and Ecology》 CSCD 2019年第3期256-264,共9页
This paper examines the spatial characteristics of farmer/household behaviors in regional rice cropping systems(RCS), and the results provide necessary information for developing strategies that will maintain regional... This paper examines the spatial characteristics of farmer/household behaviors in regional rice cropping systems(RCS), and the results provide necessary information for developing strategies that will maintain regional food security. Through field study and statistical analysis based on 402 households questionnaires finished in 2014-2015 in the Poyang Lake Region(PLR) of China, we arrived at two main conclusions. First, single-and double cropping rice were found across the study area, but showed a general distribution trend, with double cropping rice in the southeast part(especially in Jinxian county) and single cropping rice in the northwest(particularly in De’an county). Second, the household decisions concerning RCS varied in different parts of the PLR, but double cropping was the dominant type, with about 63.57% of the respondent households in the PLR cultivating double cropping rice. However, the multiple-cropping index of paddy rice was only 1.55. About 3% of interviewed households had altered their RCS during this period. Based on these findings, the local governments should guide farmers’ paddy field cultivation behaviors by increasing the comparative efficiency of rice production, promoting appropriate scale operations and land conversion, as well as optimizing rice growing conditions to improve the multiple cropping index and enhance food provision. Finally, land-use efficiency and more sustainable use of land resources should be improved. 展开更多
关键词 rice cropping systems resp on ding strategy HOUSEHOLD Poya ng Lake Region (PLR)
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部