Ya Hanzhang is a famous theorist of national issues,religious scientist and Tibetologist of contemporary China.He put forward a lot of innovative ideas in the research field of the issue of Hui people,the issue of the...Ya Hanzhang is a famous theorist of national issues,religious scientist and Tibetologist of contemporary China.He put forward a lot of innovative ideas in the research field of the issue of Hui people,the issue of the concept of Min-Zu,the issue of the formation of nations,the socialist national question,etc.He comprehensively expounded the policy of freedom of religious belief of China,profoundly analyzed the relationship between religion and superstition and promoted the study of Chinese atheism history.He made outstanding contributions in the study of the relationship between the central government of China and Tibet local government in history,the serfdom system in Tibet and Tibetan Lamaism,and展开更多
与非冰封期水体相比,冰封期湖泊初级生产力的研究较为薄弱,一方面在于完整冰封期的调查观测数据仍然较少,而完整的冰下初级生产力变化过程对于理解冰下生态系统对环境因子的响应至关重要,另一方面物理过程与冰下生态的联系仍然有待明确...与非冰封期水体相比,冰封期湖泊初级生产力的研究较为薄弱,一方面在于完整冰封期的调查观测数据仍然较少,而完整的冰下初级生产力变化过程对于理解冰下生态系统对环境因子的响应至关重要,另一方面物理过程与冰下生态的联系仍然有待明确。本研究于20212022年冬季期间在大辽河口沿岸的含章湖开展野外调查,通过垂向归纳模型(vertically generalized production model,VGPM)计算了冰下初级生产力,分析了冰封期中初级生产力完整的变化过程,并探讨了冰封期初级生产力的关键物理驱动因素。结果表明:冰封期初级生产力呈现波动爬升的趋势,平均值为0.20 g C/(m 2·d);整个冰封期可以划分为3个时期,即结冰期、缓慢融冰期和快速融冰期,不同时期初级生产力的关键驱动因子不同,在结冰期水温是控制初级生产力的关键因素,在缓慢融冰期冰水界面光合有效辐射强度(photosynthetically active radiation,PAR)是控制初级生产力的关键因素,在快速融冰期水温和冰水界面PAR同时控制初级生产力。在结冰期冰下水体富营养化程度逐渐增加,在融冰期初级生产力随着升温和光照增强而迅速增加,因此需要对冰下水体中的生物活动及水质变化加强关注。展开更多
基金the phased achievement of the National Social Science Fund-Important Literature's Collation and Study of Major CPC Leader'Explications on Nationalism Each Period(No.:13CMZ002)China Postdoctoral Science Foundation-Study of Classic Marxist Writers'Nation-state Theory,Practice and Contemporary Significance(No.:2015T80184)the Project for Young Talent in Colleges and Universities of Hebei Province-Comparative Study on Socialist Country's Lessons of Dealing with Nationalism in the View of"Chinese Dream"(No.:BJ2014099)
文摘Ya Hanzhang is a famous theorist of national issues,religious scientist and Tibetologist of contemporary China.He put forward a lot of innovative ideas in the research field of the issue of Hui people,the issue of the concept of Min-Zu,the issue of the formation of nations,the socialist national question,etc.He comprehensively expounded the policy of freedom of religious belief of China,profoundly analyzed the relationship between religion and superstition and promoted the study of Chinese atheism history.He made outstanding contributions in the study of the relationship between the central government of China and Tibet local government in history,the serfdom system in Tibet and Tibetan Lamaism,and
文摘与非冰封期水体相比,冰封期湖泊初级生产力的研究较为薄弱,一方面在于完整冰封期的调查观测数据仍然较少,而完整的冰下初级生产力变化过程对于理解冰下生态系统对环境因子的响应至关重要,另一方面物理过程与冰下生态的联系仍然有待明确。本研究于20212022年冬季期间在大辽河口沿岸的含章湖开展野外调查,通过垂向归纳模型(vertically generalized production model,VGPM)计算了冰下初级生产力,分析了冰封期中初级生产力完整的变化过程,并探讨了冰封期初级生产力的关键物理驱动因素。结果表明:冰封期初级生产力呈现波动爬升的趋势,平均值为0.20 g C/(m 2·d);整个冰封期可以划分为3个时期,即结冰期、缓慢融冰期和快速融冰期,不同时期初级生产力的关键驱动因子不同,在结冰期水温是控制初级生产力的关键因素,在缓慢融冰期冰水界面光合有效辐射强度(photosynthetically active radiation,PAR)是控制初级生产力的关键因素,在快速融冰期水温和冰水界面PAR同时控制初级生产力。在结冰期冰下水体富营养化程度逐渐增加,在融冰期初级生产力随着升温和光照增强而迅速增加,因此需要对冰下水体中的生物活动及水质变化加强关注。
