Characteristics and Development Strategies of Mountainous Villages under the Influence of Rural Tourism:A Case Study of Guajiayu Village of Pinggu District of Beijing City

With the promotion of rural revitalization strategy,as an important way to build mountainous vil ages,rural tourism directly affects the development pattern of village space.Guajiayu Village of Pinggu District of Beijing City is taken as research object,and research is conducted from road system,residential space characteristics and other aspects.It puts forward the rural development planning strategy under the influence of rural tourism industry,making rural tourism become a powerful engine of rural development,re-inspiring the vitality of other rural industries including agriculture,and promoting the development of rural construction.

北京市挂甲峪地区土壤全硒含量分布特征

为调查北京市挂甲峪地区土壤全硒含量分布特征,探讨不同土地利用方式和海拔高度对土壤全硒含量的影响,采集挂甲峪地区表层土壤(0~20 cm)样品122个,采用GIS方法对土壤全硒含量进行了空间分布特征研究。结果表明:挂甲峪地区土壤全硒含量变幅为0.06~0.76 mg/kg,平均值为0.30 mg/kg。86.88%的土壤全硒含量处于足硒及以上水平(>0.175 mg/kg),其中有20.49%的土壤属于富硒含量(0.40~0.30 mg/kg)。不同土地利用类型间以草地土壤全硒含量平均值最高(0.40 mg/kg),其次是林地(0.37 mg/kg),最低为园地(0.25 mg/kg)。表层土壤全硒含量随海拔高度的增加呈上升趋势。土壤硒元素的块金值为0.0014,块金系数为88.10%,空间相关性弱。挂甲峪地区整体上呈北西向带状分布,存在富硒土壤。