由于营养物的增加和积累 ,水体的主要生物相应为浮游植物和大型水生植物 ,表现为浮游植物疯长(藻型 )和大型水生植物的过量生长 (草型 )。草藻混合型应视为过渡型。草型富营养化湖泊多发生在浅水湖泊 (水深 <4m ) ,我国大部分湖泊水域均处在浅水区域 ,且湖泊水体营养物含量多数已大大超过富营养化控制警戒线。因此 ,在研究和控制湖泊富营养化问题时 ,更应高度重视草型富营养化湖泊。本文将以内蒙古乌梁素海为例 ,说明草型富营养化湖泊发展的危害和治理控制的重要性和必要性 Due to the increase and accumulation of nutrients, the main organisms in the water body are phytoplankton and large aquatic plants, which are characterized by overgrowth of phytoplankton (algae) and large aquatic plants (grass). Mixed grass and algae should be considered as a transitional type. Grass-rich eutrophic lakes occur mostly in shallow lakes (water depth <4m), and most of the lake waters in our country are in shallow waters. Most of the lake water nutrient contents have exceeded the warning line of eutrophication control. Therefore, in studying and controlling lake eutrophication, more attention should be paid to grass-like eutrophication lakes. This paper will take Wuliangsuhai in Inner Mongolia as an example to show the importance and necessity of the harm to the development of grassland eutrophic lakes and their control