perennial grasses

基本解釋

A basic tenet to properly managing forage resources is to understand how perennial grasses grow.
適儅琯理飼料飼草資源的基本原則是理解多年生牧草如何生長。
Unlike corn, which must be replanted every year, perennial grasses such as switchgrass and Miscanthus preserve and increase carbon stores in the soil.
不像一年生的玉米，多年生的草本植物如柳枝稷和細(xì)葉芒可以增加土壤中的碳儲量。
The community characteristics of mixed grassland with 3-year old perennial grasses were studied in Jingqianghe region, one of the alpine regions on Tibetan Plateau.
對青藏高原高寒地區(qū)天?？h金強河地區(qū)的3年齡禾草混播草地進行了群落學(xué)特征研究。