Click here to load reader
Upload
janis1971
View
1.660
Download
0
Embed Size (px)
Citation preview
????
(Food Chain Food Web)
(Producer) :
(Consumer)
(Decomposer)(scavenger)
Bio-accumulation
Bio-magnification
DDT DDT310-6 ppm0.04 ppm0.5 ppm2 ppm25 ppm
1.:2.
;
, 5~20%
:
1.bin
???
;
90 ................100 .............30 ...............12 ......................8
40 1615
100
30,
10
4141