营养层 meaning in Chinese

nutritive layer

The anther is made up of an outer epidermis , a middle fibrous layer , and an inner nutritive layer , the tapetum
花药壁由外表皮层，中间纤维层，内部营养层和绒毡层构成。
The dynamics of diversity and the composition of nutrient classes and dominant guilds of arthropod community in different intercropping and managing jujube yard ecosystems
不同类型枣园节肢动物群落营养层及优势功能集团的组成与多样性时序动态
The insect community of lichee orchard can be divided into 4 nutrient classes , which is phytophagous insect , predacity , parasite and saprophagous . the insect community also can be divided into 7 guilds : underground pest , eating - leaf - flower - fruit pest , puncture and suck pest , bristletail , predacity , parasite and moderate insect , and be divided into 32 groups , 41 dominance species and 10 key species
荔枝园昆虫群落可划分为植食类，捕食类，寄生类，腐食类4个营养层； 7个功能集团：即地下害虫，食叶、花、果害虫，刺吸害虫，蛀干害虫，捕食类，寄生类，中性昆虫； 32个类群； 41个优势种； 10个关键物种。