CAJ | 학술논문

通过对长江河口浮游植物采样研究,应用浮游植物群落多样性指数和均匀度指数、浮游植物丰度以及生物学综合评价法对长江河口水体营养状况进行监测与评价.生物学综合评价结果显示:1999年枯水期,口门内的SX01～SX04样站表、底层水体为中营养水平,口门外近岸及近外海水域一般为贫营养水体.1999年丰水期,表、底层水质状况与枯水期不同,口门内的SX01～SX04样站水体为贫营养型,近口门、近外海水域为中营养型,近岸中部、东部表层一般达到富营养型水体,近岸底层东北部为富营养型,其余近岸水域为中营养型水体.2000年枯水期水质情况为:口门内表、底层水体为贫营养水体,近岸水域表层为中营养水体,底层为贫营养水体,近外海水域表、底层一般也为贫营养水体.
통과대장강하구부유식물채양연구,응용부유식물군락다양성지수화균균도지수、부유식물봉도이급생물학종합평개법대장강하구수체영양상황진행감측여평개.생물학종합평개결과현시:1999년고수기,구문내적SX01～SX04양참표、저층수체위중영양수평,구문외근안급근외해수역일반위빈영양수체.1999년봉수기,표、저층수질상황여고수기불동,구문내적SX01～SX04양참수체위빈영양형,근구문、근외해수역위중영양형,근안중부、동부표층일반체도부영양형수체,근안저층동북부위부영양형,기여근안수역위중영양형수체.2000년고수기수질정황위:구문내표、저층수체위빈영양수체,근안수역표층위중영양수체,저층위빈영양수체,근외해수역표、저층일반야위빈영양수체.
Based on the samples collected from the Changjiang Estuary, monitoring and assessment of water nutrient states have been made through the methods including diversity index, evenness index, abundance and bioassessment of phytoplankton community. The results by means of the standard of bioassessment of phytoplankton community showed that in the dry period of 1999, the surface and bottom layers of water of stations SX01～SX04 inside the river mouth were a mesotrophic type; and the waters nearshore and offshore outside the river mouth were generally an oligotrophic type. In the wet periods of 1999, the condition of water quality was different from that of water during the dry periods. The waters of stations SX01～SX04 inside the river mouth were an oligotrophic type. The waters near the river mouth and offshore were a mesotrophic type, and the surface layers in the mid-east nearshore generally reached the level of the mesotrophic type; bottom layer in the northeast nearshore was also an eutrophic type; the rest were a mesotrophic type. Such are the water quality conditions in the dry period of 2000. And the surface layers of waters nearshore were a mesotrophic type and the rest were an oligotrophic type.