SCOPE; Scientific Committee on Problems of the Environment        国际环境科学委员会 SCOR; Scientific Committee on Oceanic Research        国际海洋研究委员会 scramble-type competition        共灭型竞争 scree        碎石坡；碎石堆 scree vegetation        碎石坡植被 scrub        灌丛 scuba        水中呼吸器 SDA (specific dynamic action)        特殊动力作用 seabird        海鸟 sea floor        海底 sea ice        海冰 sea-mount        海底山 searching behavio(u)r        探索行为 searching image        探索像 seasonal        季节的 seasonal aspect        季节相；四季景观 seasonal distribution        季节性分布 seasonal migration        季节性迁移；季节性回游 seasonal periodicity        季节周期性 seasonal prevalence        季节性消长；季节性分布 seasonal rhythm        季节性节律 seasonal succession        季节性消长；季节性演替 seasonal synusia        季节性单层群落 seasonal variation        季节〔性〕变异 seasonal vicariad        季节性同宗〔并存〕种 sea weed        海草；海藻 sea-weed bed        繁藻地 secchi disc        透明度测定板 secchi disk        透明度测定板 seclusion type        隐遁型 secondary carnivore        次级肉食动物 secondary community        次生群集 secondary consumer        次级消费者 secondary consumer level        次级消费者阶层 secondary environment        后成性环境 secondary forest        次生林；再生林 secondary fossil        异位化石；次生化石 secondary growth        再度生长；直径生长 secondary milieu        后成性环境 secondary parasite        次级寄生物 secondary producer        次级生产者 secondary production        次级生产 secondary productivity        次级生产力 secondary sere        次生演替系列；次生消长系列 secondary succession        次生演替；次生消长 sedentary species        定着生物 sedge bog        莎草湿原 sedimentary facies        沈积相 sedimentary rock        沈积岩 sedimentation        沈降〔作用〕 sedimentology        沈积学 seed collecting forest        母树林；采种林 seed collecting forest area        母树林区 seed dispersal        种子散布 seeded pasture        人造牧〔草〕地 seeding        播种