執行成果摘要
In order to realize the growth and fruit productivity of Camellia brevistyla under different stand density of upper tree, the study was carried out at Pingtung Operation Branch, Taiwan Sugar Corporation. The result could be the basis of evaluation of economics and carbon sequestration. The result in this year was as follows.
The average total volume, average mean annual increment (MAI) and average current annual increment (CAI) (9th-10th year) for Sapindus mukorossi were 60.81m3/ha, 6.08 m3/ha/yr and16.59 m3/ha/yr respectively. Relatively, the upper trees are in the stage of fast growing. The aboveground biomass was 73.63 ton/ha and carbon storage was 36.82 ton/ha for the ten year old Sapindus mukorossi stands.
After planting for 4 months, the average survival rate ranged from 97.44 to 98.51% for Camellia brevistyla. Although the seedling growth increased with the thinning rate, but there was no significant difference by the Duncan's test.
For the monitoring of micro-environment, the medium thinning treatment was larger than the other treatments and with significant difference for relative light intensity. For the temperature, the medium thinning treatment was also larger than the other treatments in the day time. But there was no significant difference for the humidity.