Effect of Suining Tributary ecoremediation to all size-fractionated chlorophyll-a contents

Abstract

Abstract: Through analysis of the size fractionated chlorophyll a contents in the remedied part,control part and non remedied part in Suining Tributary,this paper discussed the effect of bioremediation to all size fractionated chlorophyll a contents. The averaged Chlorophy a content of nano plus pico phytoplankton made up 85.232%, 92.402 %,95.205% of the total,respectively for the remedied, control and non remedied part. Among these,the nano fraction alone made up 78.460%,87.943%,87.211%,respectively. Nano-phytoplankton contributed most to the total biomass of Chl a. Its average contribution was 84.538% to the whole tributary,whereas net phytoplankton contributed only 9.054%. Nano-and pico-phytoplankton was most sensitive to the test eco remedy. The remedy reduced the relative biomass of net-phytoplankton,and increased the relative biomass of Pico enhance. The relative biomass of nano and ultrta phytoplankton fraction was little effected.

CLC Number:

Q178.1

LIU Dongyan, DA Liangjun, YOU Wenhui, SONG Yongchang . Effect of Suining Tributary ecoremediation to all size-fractionated chlorophyll-a contents[J]. Chinese Journal of Applied Ecology, 2003, (6): 963-968.

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