Abstract: The bioeffects of some environment conditions such as fertilization, alkalinity and precipitation on the productivity of Eichhornia crassipes were studied in this paper. The results showed that the increase regularity of plant heigth, blade width and biomass of Eichhornia crassipes related to fertilization was 3%>2%>1%, to alkalinity was pH7 >pH8 >pH9 >pH10, and to precipitation was 450mm>350mm. The variation of the strength of physiologic metabolism related to the environment conditions was similar to the plant heigth, blade width and biomass in the experiment.

Key words: airborne hyperspectral remote sensing, estimation model for chlorophyll content, kernel partial least-squares.