北京地区1km2网格植物气候生产力的估算

该研究利用北京地区1km^2。网格的气候资料，应用桑斯维特纪念模型估算了北京地区植物气候生产力，并利用地理信息系统软件将网格植物气候生产力进行了可视化处理。此估算结果全面系统地表现了北京地区植物气候生产力的空间分布状况：平原区及山前暖区的植物气候生产力普遍大于山区，最大值出现在水热条件较好的平谷区，最小值出现在水热条件较差的西部山区。此估算结果为各级政府管理部门进行产业结构调整和生态环境保护提供了重要的科学依据。

CALCULATION OF PLANT CLIMATIC PRODUCTIVITIES BY 1 KM2 IN BEIJING

This paper uses the climate data of 1 km2 in Beijing and Thornthwaite memory model to calcu late the plant climate productivity in Beijing. It also uses the software of geographic information system to visualized plant climate productivity in gridding. The calculation results completely and systematically show the space distribution of plant climate productivity in Beijing. The plant climate productivities of plains and areas before mountains are normally bigger than that of mountainous areas. The maximum value appears at Pinggu District where water and heat conditions are better. The least value shows up at the western mountainous region where conditions are relatively poor. These results have provided important scientific reliance for the government administration bodies at various levels to adjust the production structure and to protect the ecological environment.