东北阔叶红松林分布区生态气候适宜性及全球气候变化影响评价

应用生态学报 ›› 2003, Vol. ›› Issue (5): 771-775.

东北阔叶红松林分布区生态气候适宜性及全球气候变化影响评价

吴正方

东北师范大学教育部植被生态重点实验室, 长春 130024

收稿日期:2001-06-25 修回日期:2002-12-27 出版日期:2003-05-15
基金资助:
国家重点基础研究发展规划项目(G2000018602)

Assessment of eco climatic suitability and climate change impacts of/on broad leaved Korean pine forest in Northeast China

WU Zhengfang

Key Laboratory of Vegetation Ecology of Ministry of Education, Northeast Normal University, Changchun 130024, China

Received:2001-06-25 Revised:2002-12-27 Online:2003-05-15

摘要/Abstract

摘要： 以在植被分布中起重要作用的温度指标(生长度·日,GDD)和水分指标(可能蒸散率,PER)为基础提出温度水分影响函数f(GDD,PER),评价了东北阔叶红松林分布区生态气候环境质量即生态气候适宜性.将f(PER,GDD)≥0.70划为阔叶红松林核心分布区;0.35≤f(PER,GDD)<0.70划为适宜分布区;f(PER,GDD)<0.35划为边缘分布区.东北阔叶红松林分布区面积为39.99km²,其中核心分布区面积7.13×10⁴km²,适宜分布区12.27km²,边缘分布区20.59km².同时结合大气环流模式(GISS、OSU)的气候变化情景评价了全球气候变化对东北阔叶红松林分布区生态气候适宜性的影响.结果表明,干暖化气候条件下东北地区阔叶红松林分布区明显减小,生态适应性显著下降.

Abstract: Based on growing degree days (GDD) and potential evapotranspiration ratio (PER), the temperature water effect function (f(GDD, PER)) was established and the assessment of eco climatic suitability and climate change impacts of/on broadleaved Korean pine forests in Northeast China was studied. The results showed that the present distribution area of broad leaved Korean pine forests in Northeast China was 39.99km², which included the optimum distribution area 7.13 km², suitable area 12.27km²,and marginal area 20.59 km². Under GISSand OSUclimate change scenarios, the climate of Northeast China changed to warming and dry in some degree. Under this tendency, the distribution area of broad leaved Korean pine forests would be reduced,and the eco climatic suitability would be declined.

中图分类号:

S791.247

吴正方. 东北阔叶红松林分布区生态气候适宜性及全球气候变化影响评价[J]. 应用生态学报, 2003, (5): 771-775.

WU Zhengfang. Assessment of eco climatic suitability and climate change impacts of/on broad leaved Korean pine forest in Northeast China[J]. Chinese Journal of Applied Ecology, 2003, (5): 771-775.

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