中国优秀旅游城市空间分布及其动力机制研究

优秀旅游城市是我国旅游经济活力的主要释放点,对其进行空间分析有助于认识我国旅游业发展的空间格局。通过最邻近指数计算,判断出中国优秀旅游城市在空间形态上呈凝聚型。进一步探究这种不均衡性的区际分异,则发现不仅存在东、中、西三大经济区的分布态势差异,在同一个区内,还存在不同等级优秀旅游城市的分布态势差异。文章分别从区域经济水平、城市体系结构以及旅游资源分布三个方面给出解释。最后针对不同区域给出相应的城市旅游发展策略。     

循环经济视角下乡村旅游资源低碳化开发研究

旅游循环经济与低碳经济之间存在耦合机制,为减少碳源和增加碳汇,循环经济下的乡村旅游资源低碳化开发方法主要有梯次开发、变废为宝、资源共享、循环经济技术、生态补偿、地方性利用六种。自然环境美化、示范效应和融合发展是具体开发模式,其中,低碳型的融合模式以产业外部循环和要素内部循环为主要表现。     

Agroforestry techniques for the rehabilitation of degraded salt-affected lands in India

The development of appropriate technologies for the judicious use of India's 8.11 million ha of salt-affected lands would give increased food, fodder and fuelwood production. A sizeable portion of the salt-affected lands of the Indo-Gangetic plain have been reclaimed through chemical amendments and are being commercially used for arable farming. However, large areas of salt-affected common lands, village and government lands and waste lands near cities, along railway tracks and roads do not have any productive use. Owing to their sparse vegetative cover such lands are vulnerable to further degradation and can be a source of runoff causing floods, especially where cows congregate. Research at the Central Soil Salinity Research Institute, Karnal has generated agroforestry techniques which could enable the economic exploitation of such marginal lands. This paper deals with various aspects of these techniques, which have been applied to over 50 000 ha by 1994. Based on eight to ten years of growth and biomass figures, the most salt-tolerant woody species identified were: Prosopis juliflora, Acacia nilotica, Casuarina equisetifolia, Tamarix articulata, Leptochloa fusca (a palatable forage grass which was found to be a promising primary colonizer of salt lands). Agronomic practices for the successful establishment of trees such as planting methods, amendment use, irrigation, spacing and lopping schedules are discussed. A Prosopis juliflora-leptochloa fusca silvipastoral model was found to be excellent for fuelwood and forage production and for the amelioration of high pH soils. This system, when followed for little more than four years, reclaims alkali soils to such an extent that normal agriculture crops such as Trifolium alexandrinum and T. resupinatum can be grown successfully. A ridge-trench system of tree planting was found to be helpful in alkali soils, the in situ rainwater conservation it led to assisting biomass production. Eucalyptus tereticornis, Populus deltoides and Tectona grandis based agroforestry were promising for reclaimed salt-affected lands. The short- and long-term effects of various tree plantations on the physicochemical properties of the soil and on soil-water relations are also discussed. Agroforestry options for the development of salt-affected lands found in various agroclimatic zones of India are explored.     

数字林业在天然林保护工程中的应用研究

本文阐述了数字林业的概念及涵义,指出其最初的切入点是国家林业局提出的六大林业生态工程。针对天然林保护工程的现状,提出用数字林业技术解决其存在的问题,构建了基于3S技术的天然林保护工程管理地理信息系统,使天然林保护工程的管理步入规范化、科学化、现代化的轨道。     

论我国茶文化旅游发展现状

本文以我国近年来的茶文化旅游现象为研究对象,试图将茶文化旅游的概念做出阐述,并结合当前茶文化发展现状,将我国茶文化旅游的形式划分为自然景观型、茶乡特色型、农业生态型和人文考古型四种模式。对这四种模式的茶文化旅游描述其发展背景、发展成因以及现实例证。对我国茶文化旅游发展所存在的缺陷做出分析并预计未来的发展方向。     

新时期森林资源保护存在的问题与解决对策

森林资源作为国家的重要自然资源,不仅能够创造经济效益,还可以调节整个生态系统.伴随公众环保意识的日益增强,森林资源保护工作受到了社会的广泛关注,国家也采取了一系列措施加强森林资源的保护管理.然而从现实来看森林资源保护工作仍面临着不少问题需要解决.为此,就当前森林资源保护管理存在的主要问题进行了分析,探讨了有效的应对策略...     

基于IRT框架的乡村旅游协同发展机制研究 ——以山东省典型村为例

乡村旅游产业发展契合了乡村振兴战略的基本要求,以可持续发展视角关注乡村旅游业的多重价值,为乡村产业融合、经济发展和农民就业增收提供了持久动力。基于一体化乡村旅游(IRT)框架理论,以山东省乡村旅游典型村为研究对象,运用案例分析方法探究乡村旅游协同发展的内在基础与阶段特征,剖析乡村旅游协同发展的驱动机制与实现路径。结果表明,乡村旅游初始发展阶段依赖于资源内生性与利益共享性,市场化运作阶段强调组织化嵌入与规模化经营,快速扩张阶段关注社区赋权与内生性发展,持续发展阶段诉求利益均衡与合作共生。社区参与、多元赋权与价值认同,多利益相关者的参与、联合与协同,持续、有效的制度性供给与规范是乡村旅游协同发展的运行基础。但是,乡村旅游不同发展阶段面临着多元主体利益不均衡、资源内生性不足、乡土文化异化、社区赋权程度低和城乡要素流动不畅等问题与挑战。因此,提出合作网络构建与协作经营机制、多元主体的利益协调机制、乡村社会文化的保护与建构机制、资本嵌入与竞合机制等协同发展路径。     

Disturbance‐induced responses of VHF and satellite tagged harbour seals

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