关键词: 草原康养, 环境小气候, 气候舒适度, 空气质量

Abstract: In this paper,three types of grasslands of temperate meadow grassland,temperate typical grassland and lowland meadow in Huihe Protected Area of Inner Mongolia were taken as examples. Air temperature,relative humidity,wind speed,light intensity,atmospheric particulate matter,air negative oxygen ion concentration and other indicators were measured for three consecutive months,and climatic comfortableness index was calculated to study the key environmental factors affecting the function of grassland to the wellness service industry. The results showed that the microclimate in the investigated grasslands,such as temperature,relative humidity,wind speed and light intensity,was suitable for human activities. The climatic comfortableness index of all types of grasslands was below 4.55,reaching the “very comfortable” level. The order of airborne negative oxygen ions is:Lowland meadow (1 770 cm^-3) > temperate typical grassland (1 731 cm^-3) > temperate meadow grassland (1 283 cm^-3) > Mongolian scotch pine forest (1 108 cm^-3) > urban road (560 cm^-3). The average daily PM_2.5ingrasslands was 10.6 μm·m^-3. The daily mean value of PM₁₀ was 14.8 μm·m^-3. All of them have reached the level of national level I standard and are suitable for grassland health activities. To sum up,this study concluded that grassland not only has health and nourishing function,but also has significant effects,among which lowland grassland has the best health and nourishing effect,followed by warm grassland and meadow grassland.

Key words: Grassland health, Environmental microclimate, Climate comfort, Air quality