昆嵛山表土孢粉分析

对昆嵛山地区,沿山地地表横剖面样线进行表土孢粉分析．结果表明：现代孢粉组合基本上反映了当地的植被状况,尤其是４００ｍ以上部位的样品．但在无松或松少的样点,松花粉以较大比例出现．同时,用外加花粉法求得花粉浓度,并与花粉百分比相比较,二者表现为基本一致的变化趋势,但前者更为明显     

平山县博物馆所藏《大唐西临山石龛像记》初探

现存于河北省平山县博物馆的《大唐西临山石龛像记》,刻立时间为唐大历四年(769年),原位于平山县三汲乡西林山的山头寺.不仅历代金石著作、方志等未著录,就是当代考古和历史学界对其内容也鲜有涉及.它是继李宝臣纪功碑、神道碑之后,关于成德镇节度使李宝臣的又一重要文物发现,一些记载可纠正、补充传世文献之缺失.更重要的是,提供了...     

雷公山旅游资源的特点与开发构想

雷公山自然保护区的旅游资源非常丰富,在47300hm^2的范围内有着古树参天的森林,美丽芳香的花贲,怪石和湖光山色等自然风光,以及纯术浓郁的民风民俗,民族节日和民族历史文化等人文景观,对该地区旅游开发的条件和现状进行了评价,并提出了合理的开发建议。     

云南横断山区的民族文化多样性研究

横断山区是我国乃至世界多样性最为复杂的区域,它具有生物多样性和民族文化多样性的双重特征,并面临生物和民族文化多样性保护的艰巨任务。在民族地区要开发民族文化力,建立既能固守民族传统文化,又能适宜现代化的民族发展模式。横断山区的多样性要采取保护性的开发和开性的保护,建立自然和民族文化保护区,保证横断山区多样性永存和社会经济的持续发展。     

横断山－云南高原干热河谷形成原因研究

云南高原是青藏高原“高原地理效应”影响的独特地域。云南山原的自然地带性以热带为其特征,地形海拔变化使得水分和热量出现垂直分异;云南山原的垂直自然带的基带通常是河谷地带,深切的河谷往往更能反映水平地带性的状况,但在横断山－云南高原的怒江、澜沧江、元江、金沙江、南盘江部分河段出现了独特生态气候景观的干热河谷地域。关于干热河谷联系紧密的4个因素：①区域气候环境和水热平衡变化;②植物逆向演替和生态环境退化;③土地结构和河谷坡地退化;④人为干扰影响。对以上4个因素进行了分析研究,总结出干热河谷形成原因的“双生论”,并对干热气候类型进行了初步分类。     

武当山近50年考古新发现

近50年的考古调查发掘表明,武当山不仅是我国著名的风景和道教圣地,而且也是我国罕见的一个历史悠久、蕴藏丰富的“文博之乡”。从史前的动植物化石、新石器时代的遗址,到有史以来的历代古迹、墓葬和遗存,几乎可以勾画出自生命的起源、人类的诞生以及进入文明时代的一个清晰线索和图景。     

浅论商洛山区的蓄水保墒农业

通过对地貌因素 ,土地利用现状及耕地质量 ,水资源状况及其特征的分析 ,提出在商洛山区发展蓄水保墒农业的重要性 .并提出本区应以降水的高效利用为中心 ,蓄住天上水 ,保住地里墒 ;以优化农业结构和改善生态环境为基础 .主攻雨水集蓄利用 ,协调水肥关系 ,推广综合农业技术 ,提高水分生产率 .     

内练"内功",外塑"形象"--打造九嶷山舜文化旅游精品的构想

本文分析了“造九嶷山舜文化旅游精品”必要性与可能性,提出了“造九嶷山舜文化旅游精品”构想,即一方面内练“功”在完善现有旅游景点设施的基础上,充分挖掘舜文化内涵,彻底改变旅游产品单一的现状,打造出“功”足的九嶷山舜文化旅游精品;另一方面外塑“象”在加大宣传力度的基础上,重新确定旅游形象,以形象带动战略,提高广大游客对九嶷山舜陵景区的形象感知.     

The effectiveness of front fork systems at damping accelerations during isolated aspects specific to cross-country mountain biking

Cross-country mountain bike suspension reportedly enhances comfort and performance through reduced vibration and impact exposure. This study analysed the effectiveness of three different front fork systems at damping accelerations during the crossing of three isolated obstacles (stairs, drop, and root). One participant completed three trials on six separate occasions in a randomised order using rigid, air-sprung, and carbon leaf-sprung forks. Performance was determined by time to cross obstacles, while triaxial accelerometers quantified impact exposure and damping response. Results identified significant main effect of fork type for performance time (p < 0.05). The air-sprung and leaf-sprung forks were significantly slower than the rigid forks for the stairs (p < 0.05), while air-sprung suspension was slower than the rigid for the root protocol (p < 0.05). There were no differences for the drop protocol (p < 0.05). Rigid forks reduced overall exposure (p < 0.05), specifically at the handlebars for the stairs and drop trials. More detailed analysis presented smaller vertical accelerations at the handlebar for air-sprung and leaf-sprung forks on the stairs (p < 0.05), and drop (p < 0.05) but not the root. As such, it appears that the suspension systems tested were ineffective at reducing overall impact exposure at the handlebar during isolated aspects of cross-country terrain features which may be influenced to a larger extent by rider technique.     

The dangerousness of mountain recreation: A quantitative overview of fatal and non-fatal accidents in France

In France, there is a growing enthusiasm for outdoor sports and recreation. In the meantime, the risk of both severe and frequent injury associated with active pursuits in mountain areas is acknowledged. This paper tackles accidents related to mountain sports, with a focus on three critical activities: hiking, mountaineering and ski touring. The aim consists of estimating the actual number of accidents (whether they entailed deaths or injuries) in the three above-mentioned activities. In order to align the information collected, then provide estimations based on the reasoned crossing of these secondary data, we consulted and summarised all the databases available on the French territory. Results address the trauma-related mortality in absolute values, and a comparison with the death rate of other sports. The calculation of a mortality index, including secondary mortality, is then provided. Elements of mountain sports accidentality are also presented, intending to clarify how many casualities occur each year in the French mountains. Last, a focus on the particularities of each mountain sport is provided.