草類可保護土壤表層沖蝕，其莖葉抵擋雨滴的沖擊，保護土壤孔隙被淤塞，以保持土壤之滲透功能。本省果園過去引進外來草種做為植生覆蓋，並獲良好的效果，如百喜草，惟近年來因農村工資高漲，管理困難，草生栽培之推廣不易。理想的草類必需適合環境。因此固有草種的研究及綠肥混植的植生及省工的栽培法必需研究推廣。草類在環境綠化工作中漸居重要地位，凡公園綠地、社區綠地、運動場、遊樂區、高爾夫球場等均需依賴特定草種以達綠化的效果。因此台灣必需設立植生材料中心負起研究及推廣草類的責任。

Grasses leaves break the initial erosive power of rain and protect the clogging of soil pores which would keep good infiltation condition and decreased run off. In the past, we have been' used several kinds of exoitic species for cover grasses which obtain good results; such as Bahia grasses, but Bahia grasses extension in orchard for cover grasses got bottleneck. for their high management cost. Ideally species should be harmony with the environment. Indigenous species and a mixture of grasses and green manure should be investigated and study in this island as soon as possible. Recently, grasses situated a vital part in enviromental green plant. We must study specific grasses for wide use, such as grasses ground of park, golf course, green park community, athletic groumd and recreation area. For these purpose. a new organization---Plant Material Center should be considered to establish, as soon as possible .