aquatic vegetation
2.The vertical distribution regularity is as follows: aquatic vegetation → moor vegetation → swampy prata vegetation → subalpine meadow → subalpine shrub from the center of lake to the hilltop.
3.Water scorpions are poor swimmers and usually crawl on aquatic vegetation or below the water. When threatened they often feign death.
4.Submerged vegetations (aquatic vegetation) with abundant nutrition is a kind of biotic resources, compared with terrestrial plants, their different physics properties make the drying problem as one of the most difficulties that limite their rational exploitation and utilization.
