Seasonal Characteristics是什么意思

用法例句

Sand drift activity in arid sandy area of North China prevails in Spring when plants in shelter belt are still in Winter facies.

研究林带冬季相结构设计方法是针对我国北方干旱沙区气候和风沙活动特点，为沙区新垦绿洲防护林体系建设服务的。