介形类在湖泊沉积环境研究中作为有效指标起着重要的作用。较长期以来，习惯用介形类属种组成和变化来反映不同的环境。事实上，一些普生种、广域种对环境变化并不一定很敏感，但在数量上有时占有相当大的比例，对环境变化不易作出准确的判识。另外，对于一些区域性或地方性的 Ostracoda plays an important role as an effective indicator in the study of lacustrine sedimentary environment. For a long time, the habit of using Ostracoda species composition and changes to reflect different environments. In fact, some species and species of broad-leaved species are not necessarily sensitive to changes in the environment. However, they sometimes occupy a considerable proportion in quantity and make accurate identification of changes in the environment difficult. In addition, for some regional or local