CAJ | 학술논문

通过人工室外玻璃水槽养殖试验，研究了几种水生植物在两个不同的生态水平上对重金属 Pb和 Zn的生态效应。结果发现，水生植物对有害环境因子的生态敏感度，在植物组织水平上与在分子水平上的表现截然相反。根据植物体内过氧化氢酶（ CAT）的活性反应来排序，几种水生植物的（ CAT）敏感度为：水花生 >紫背萍 >满江红 >轮叶黑藻 >马来眼子菜。这与植物受 Pb和 Zn伤害后的形态症状表现的生态敏感度（种敏感度）顺序完全相反。把不同的生态敏感度概念（ CAT敏感度和种敏感度）引入生态规划，作为生态敏感区域划定的指标。对具有不同敏感等级和不同的保护水平要求的生态区域，应采用不同的生态敏感度，即 CAT敏感度或种敏感度。
통과인공실외파리수조양식시험，연구료궤충수생식물재량개불동적생태수평상대중금속 Pb화 Zn적생태효응。결과발현，수생식물대유해배경인자적생태민감도，재식물조직수평상여재분자수평상적표현절연상반。근거식물체내과양화경매（ CAT）적활성반응래배서，궤충수생식물적（ CAT）민감도위：수화생 >자배평 >만강홍 >륜협흑조 >마래안자채。저여식물수 Pb화 Zn상해후적형태증상표현적생태민감도（충민감도）순서완전상반。파불동적생태민감도개념（ CAT민감도화충민감도）인입생태규화，작위생태민감구역화정적지표。대구유불동민감등급화불동적보호수평요구적생태구역，응채용불동적생태민감도，즉 CAT민감도혹충민감도。
By measuring ecological effects of several aquatic plants on heavy metals of Pb and Zn,it has been shown that the ecological sensitivities of plants on danger environmental factors are quite different between organism level and molecular level.According to CAT activity,an order for CAT－ sensitivities of plants was found to be:Alternanthera philoxeroides>Spirodella polyrrhiza>Azolla imbricata>Hydrilla verticillata>Potamogeton malaianus.This result was contrary to the species－ sensitivities based on injured levels of plants,such as:Potamogeton malaianus>Hydrilla verticillata>Azolla imbricata>Spirodella polyrrhiza>Alternanthera philoxeroides.The ecological sensitivity introduced into ecological planning has been recognized as index for delimiting ecological sensitive areas.The different idea of CAT－ sensitivity and species－ sensitivity may be applied to different areas with different ecological stabilities and different protecting needs.