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通过对病带15省、区217个点进行点面调查、内外环境动态监测、地理生态系物质匹配采样、特异点21种生命元素对比分析等,从全国、省、特异点三个层次系统地阐释了环境低硒是克山病区的共同特征,从大范围揭示了80年代以来克山病发病下降和病区人群硒摄入上升的紧密关系,为克山病与元素硒的联系提供了新论据;提出了以低硒为主及其有关元素或某些因子失衡与克山病的关系,并据此提出了控制克山病的经济—生态法新对策;丰富了环境生命元与健康的科学理论
Through the point-by-point survey on 217 diseased areas and 217 spots in the diseased zone, dynamic monitoring of internal and external environment, sample matching of geography and ecosystem, comparative analysis of 21 kinds of life-specific elements and so on, from three levels of national, provincial and specific points It is explained that low selenium is the common feature of Keshan’s ward. From the large scale, the close relationship between the decline of Keshan’s disease and the selenium intake in the ward has been revealed, which provides a link between Keshan disease and selenium New argument; put forward the low selenium-based and its related elements or some factor imbalance and Keshan disease, and put forward a new economic-ecological approach to control Keshan disease; enrich the environmental life element and health Scientific theory