关键词: 氮素, 氮素, 哈尼梯田水稻, 冠层昼温, 光合有效辐射, 稻瘟病

Abstract: In order to accurately evaluate the development potential of rural commercial pension insurance in Heilongjiang Province, 12 provincial administrative regions including Heilongjiang Province, as well as 13 cities in Heilongjiang Province were selected as the research objects. Based on the data of China Statistical Yearbook 2014 and Heilongjiang Statistical Yearbook 2014, an index system was constructed by factor analysis, and the development potential of rural commercial pension insurance was divided into different levels through cluster analysis. The results showed that main factors affecting the development of commercial pension insurance in rural areas could be summarized to be the degree of rural community construction, the economic and cultural development and living standard of rural residents. There was relatively large development potential of rural commercial pension insurance in Daqing, Harbin and Qiqihar in Heilongjiang Province. However, the development potential in other areas was very poor, meaning that there were serious pension problems in these areas.