Abstract: Magnetic field of wind farm is mainly generated by the submarine cables in the operation of wind farm, and its effects on marine organisms have been less studied. In order to know whether the marine organisms in adjacent sea areas and in aquaculture environment were affected by magnetic field generated during the operation of wind farm, we took Rudong Longyuan windpower demonstration area as an example and selected 12 economic categories of marine organisms along the coastal water of Jiangsu. Six intensities of magnetic field (Test Ⅰ: 1.00 mT; Test Ⅱ: 0 mT, （0.045±0.01） mT, （0.20±0.01） mT, （0.90±0.01） mT, （4.05±0.01） mT, and ambient magnetic field (CK)) were installed to check their influence on the survival and behavior of marine organisms. Significant difference (P<0.05) was detected on survival rate and behavior of fish Acanthopagrus schlegeli between 1 mT magnetic field (21 days) group and control group, but such effects disappeared 14 days after removal of the magnetic field. The survival rates of fish Acanthopagrus schlegeli, Cynoglossus semilaevis and shellfish Meretrix meretrix in （4.05±0.01） mT magnetic field group showed significant difference (P<0.05) compared with control group. The avoidance behaviors of shellfish Nassarius variciferus, fish Cynoglossus semilaevis and crab Helice tientsinensis in (4.05±0.01) mT magnetic field had significant differences (P<0.05) compared with control group. The results indicated that magnetic field of wind farm had tangible impacts on the survival and behavior of marine organisms in short term (21 days) but such effects disappeared after removal of the magnetic field.

Key words: Guangzhou-Foshan Metropolitan Area (GFMA)., agriculture and forestry land, urbanization, agriculture and forestry ecosystem services value (AESV)