中亚热带典型生态系统及其主要植物光合生理生态特性研究

The photosynthesis of the typical ecosystems and their primary plants in the middle subtropical zone.

通过对江西省鹰潭市5个典型生态系统的光合作用研究结果初步发现,各系统内植物的光合性能具有一定的规律性,各植物净光合速率一般均在上午10:00达到最大值,蒸腾速率随气温的升高而有不同程度的增加。其中复合农业生态系统的净光合速率和蒸腾速率最高,特别是净光合速率达到单作的2倍以上,是该地区值得进一步研究和推广的有效模式。

The photosynthesis of five typical ecosystems in Yingtan City, Jiangxi Province was studied. The results showed that the plants in all ecosystems had some regulation in their photosynthesis capability, all plants had the highest net photosynthesis rate at 10:00 in the morning and the transpiration rate increased with air temperature rising and that the multiple agricultural ecosystem had the highest net photosynthesis rate and transpiration rate, especially, its net photosynthesis rate is above two times of that of the monoculture. Therefore it was the pattern worthy of more researching and popularizing in the zone.