Using meteorological, hydrological and ecological environment dataset of recent SO years in Hulun Lake wetland, Miami model and regression analysis method was applied to analyze the influences of meteorological and hydrological factors on climatic potential productivity. The results indicated that: ① the variable of climatic potential productivity presented downward trend and its climatic tendency was 157.7 kg·km-2.(10a)-1 during last 50 year. Both climatic potential productivity and precipitation showed the same correspond tendency with on the higher values in 1970-1990 and the lower values in 1961-1969 and 1991-2010. ② Among the fifteen meteorological and hydrological factors. The eight factors (The annual precipitation, evapotranspiration, growing season runoff, spring strong wind days, water level, spring average wind speed, annual strong wind days and water area) reached significant level(P<0.150～0.001), and the descending order of the eight factors were correlation with climatic potential productivity. The review indicated that a warmer and dryer trend of climate change and serious of drought disaster might be the major factor for restriction climatic potential productivity. ③ The synergy of both meteorological factors and hydrological factors had great influence on climatic potential productivity in Hulun Lake wetland, and correlation coefficient was -0.997. The contrary contribution were showed between the wetland climatic potential productivity with these factors (annual mean temperature, annual precipitation, evapotranspiration, growing season runoff, growing season runoff and water Level). With these factors increasing and decreasing, the increased or decreased rate was 149.7 kg·km-2 per I unit for wetland climatic potential productivity. Therefore, the wetland was not ideal match between meteorological factors and hydrological factors, while a warmer and dryer trend of climate change was still important limit factor for low solar energy utilization efficiency. ④ The reality productivity of Hulun Lake wetland did not reach its climatic potential productivity, there are nearly 60% of the potential can be developed. The main reason for the low solar energy use efficiency: the one reason was that the existing funds for the ecosystem protection, repair technology investment and management level was relatively backward, the another reason was that the warmer and dryer trend was significance in this region. The most effective approach for improving the utilization of climate resources was increase capital investment to protect the ecological environment and actively implement artificial precipitation, water saving irrigation project.%利用呼伦湖湿地50年的气象资料、水文资料和生态环境监测资料,采用迈阿密模型及回归统计分析方法,分析了气象水文因子对呼伦湖湿地区域植物气候生产潜力的影响,结果表明,①50年来该湿地植物气候生产潜力变化趋势总体为下降趋势,减少的气候倾向率为每10年157.7 kg·km-2,峰值时段为1970-1990年,两个谷值时段为1961-1969年、1991-2010年,最大值和最小值与降水量出现的最多值和最少值一一对应.②在15个气象水文因子中有年降水量、年蒸散量、生长季径流量、春季大风日数、水位、春季平均风速、年大风日数、水域面积8个因子达到显著性检验(P＜0.150～0.001),上述8个因子的排序也是与湿地区域植物气候生产潜力相关程度由大到小的排序.综述表明,呼伦湖湿地区域呈暖干化趋势,并且干旱灾害比较严重,是限制气候生产潜力的重要原因.③气象水文因子协同作用对该湿地区域植物气候生产潜力的影响较大,复相关系数为-0.997,年蒸散量与年平均气温、年降水量、生长季径流量和水位因子对湿地区域植物气候生产潜力的贡献相反,随其减少或增加,湿地区域植物气候生产潜力变化率增加或减少149.7 kg·hm-2.可以看出,该湿地气象水文因子的匹配并不理想,暖干化趋势依然是制约该区光能利用率低下的重要原因.④该湿地区域植物现实的生产力远未达到气候生产潜力,约有近60％的潜力可以开发；光能利用率较小的主要原因:一是现有的生态保护、修复技术及管理水平还比较落后,二是该区域暖干化趋势显著；而提高气候资源利用率的有效途径是加大保护生态环境力度和积极实施人工增雨、节水灌溉工程.
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