【作者】 姚成胜；

【导师】 吴甫成；

【作者基本信息】 湖南师范大学 ， 自然地理学， 2005， 硕士

【摘要】 岳麓山位于长沙市区湘江西岸,为南岳七十二峰之一,是湖南省著名的风景区。本文通过对岳麓山空气负离子浓度一年的实地观测,发现岳麓山空气负离子浓度存在以下变化规律:(1) 岳麓山空气负离子浓度和空气质量空间变化较为明显,其负离子浓度和空气质量在东北坡和东南坡均先随高度的升高而升高,到海拔150m左右达到最大,然后又随海拔的升高而降低,存在较为明显的垂直变化且核心景区和非核心景区的空气负离子浓度和空气质量也存在差异,非核心景区要略好于核心景区。(2) 岳麓山空气负离子浓度和空气质量存在非常明显的时间变化规律:即空气负离子浓度和空气质量一月份最低,9月份最高,从10月份到次年1月份空气负离子浓度和空气质量显著下降,然后开始逐渐升高,到9月份达最高:以季节而论,空气负离子浓度和空气质量夏、秋两季相当,空气负离子浓度以秋季最高,夏季次之,冬季最低,空气质量则是夏季最好,秋季次之,冬季最差。空气负离子浓度的日变化规律(6:00～19:00)为,清晨和中午低,上午和傍晚最高,一天中存在两个峰值。(3) 在不同的天气条件下空气负离子浓度的变化规律是:下雨后的空气负离子浓度和空气质量与下雨前相比,有较为显著的差异;下雨后空气负离子浓度和空气质量有明显的提高。阴天和晴天相比,晴天的空气负离子和空气质量要略好于阴天,但两者差别很不明显。(4) 在空气负离子浓度的日变化研究中,空气负离子浓度和温度不相关或存在极弱的负相关,而与相对湿度则存在较为显著的正相关;在年内变化的过程中,空气负离子浓度与温度、蒸发量、日照时数呈极显著正相关,与相对湿度呈显著负相关,与降水量不相关。(5)岳麓山空气负离子浓度和空气质量要显著高于长沙市其他各功能区,其相对较高空气负离子浓度和空气质量若加以改造,必将增加旅游的新亮点,促进岳麓山旅游的进一步发展。更多还原

【Abstract】 Mountain Yuelu, being one of the seventy-two peaks of Nanyue, stands in the west of xiangjiang river and it is a famous scenic spot in Hunan province. According to one year’s observation on the change of negative air ions in Mountain Yuelu, the laws discovered are the following: (l)The law that the negative air ions concentration and air quality in Mountain Yuelu change with space is obvious. As height increases, the negative air ions concentration and air quality also increase in both the east and the southeast slope, getting its maximum at about 150 meters; then as the height continuously increases, the negative air ions concentration and air quality decrease, getting its minimum at the peak of the mountain. That is, an obvious vertical change of negative air ions concentration and air quality exists in Mountain Yuelu. Moreover , the negative air ions concentration and air quality of the key scenic spot is a little better than the non-key scenic spot. (2) The law that the negative air ions concentration and air quality change with time is very obvious. The negative air ions concentration and air quality are the lowest in January, while the highest is in September; from October to January (the coming year), the negative air ions concentration and air quality decrease dramatically, then they get better and better month after month, and the best comes in September. So far as seasons are concerned, the negative air ions concentration and air quality are a little bit equal in summer and autumn. As to negative air ions concentration, autumn is the highest, summer comes the next and winter is the lowest; while to the air quality, summer is the best, autumn comes the next and winter is the worst. The law that the negative air ions concentration changes within a day (from six o’clock to seventeen o’clock) is the following: The concentration is low in early morning and mid-day and high in the morning and late afternoon, two更多还原