As the most famous perennial leguminous forage in the world,Medicago sativa L.ranks the first in both yield and nutritional value,and can be used for many years
[Objective] The aim was to extract red tide information in Haizhou Bay on the basis of multi-source remote sensing data.[Method] Red tide in Haizhou Bay was stu
[Objective] The research aimed to discuss the formation reason of low temperature and frozen disaster weather event in Guizhou in 2008.[Method] By using T213,EC