| Summary: | 碩士 === 國立嘉義大學 === 森林暨自然資源學系研究所 === 104 === Focusing on the experimental site of obsolescent salt pans in Budai, this research adopts split-plot design and investigates the effect of soil improvement on soil electrical conductivity, soil organic matter, soil available phosphorus and the tree high growth increment, leaf characteristics and photosynthetic acclimation of planting species including Lumnitzera racemosa, Avicennia marina and Excoecaria agallocha. This research analyzes the data of soil experiment, growth and physiological for each species to evaluate the impact on planting species by habitat improvement and afforestation feasibility on obsolescent salt pans.
The results show that there is no interaction between two soil treatments on soil electrical conductivity, soil available phosphorus, leaf characteristics and photosynthetic acclimation of planting species (p>0.05). The treatment of isolated layer almost has the major effect. It can be preferentially used for salt pans afforestation. In addition, no significant effect is found on the relative water content for all the mature leaves (p>0.05)and it reflects the shortage of rainfall on the Southwest coast in winter. Mangrove associates, Excoecaria agallocha, shows the greater photosynthetic acclimation on the treatment of oyster shell than Lumnitzera racemosa and Avicennia marina, implying that Mangrove associates can provide more species for salt pans afforestation after habitat improvement.
|
|---|
