关键词: 南极,潮间带,环境因子,时空变化

Abstract:

The environmental factors such as water temperature, salinity, nutrient salts (in the forms of PO 4 P, NO 3 N and SiO 3 Si) in the intertidal zone in summer in the Fildes Peninsula, Antarctica are analyzed. For the spatial distribution of water temperature, it is the highest in the high tide area, the next in the mid tide area and the lowest in the low tide area. The length of the time for the exposure of the intertidal zone and air temperature are the main factors influencing the water temperature change. As to the spatial distribution feature of the salinity, it is the lowest in the high tide area, the next in the mid tide area, and the highest in the low tide area.The amount of snowmelt from land infiltrated into the intertidal zone will influence the spatial distribution of salinity in the intertidal zone. The spatial distribution of the nutrients in the intertidal zone in the mid tide area is lower than that in the low tide area. The nutrients in the intertidal zone are mostly not terrigenous.