| 英文摘要 |
The purpose of this two-year project is to screen and evaluate the fast-growing and high-pollutant-uptake trees for steel industrial parks in Taiwan. The second-year study is focusing on industrial parks with other metal smelter factories. There are five major tasks in this second-year project: (1) To review all the literatures related with fast-growing and high-pollutant-uptake trees in other metal industrial parks; (2) To investigate and identify all tree species growing well in at least three other metal industrial parks; (3) To measure the pollutant uptake rates of major tree species belonging to fast-growing and high-pollutant-uptake group with instruments; (4) Comprehensive evaluation and grading all the fast-growing and high-pollutant-uptake trees species tested in this study for future application in other metal industrial parks in Taiwan; and (5) Editing the “Handbook of fast-growing and high-pollutant-uptake trees for steel industrial parks in Taiwan “. The measurements of pollutant (including C2H4、HCl、O3) uptake rates by tree species were conducted in bag branch enclosure chamber. The tolerance of these tree species to salt spray were also tested for evaluating their performance in inland or coastal areas. The recent literatures were reviewed for these topics. After a series of field investigation around many steel and metal industrial parks in Taiwan, a total of 25 tree species were selected and listed for detail measurements of pollutant uptake rates and salt spray tolerance. From Second year’s results, we found that Autumn maple tree, China Berry, Iron-wood, Norfolk island pine, Cajeput tree and Taiwan Date Palm have higher uptake rates for ethylene. For HCl uptake measurement, Iron-wood, Timor Mountain Gum, Chinese pistache, and Autumn maple tree showed the higher uptake rates. To Ozone, the higher uptake rates were found on Chinese Tamarisk, Chinese pistache, Madagascar Almond, and Lemon Eucaly. Results showed that Norfolk island pine, Iron-wood, Taiwan date palm, Chinese Tamarisk, silvery Messerschmidia, Poongaoil Pongamia and Formosan Nato Tree are salt tolerant species. In conclusion, we recommend the better tree species for inland other metal industrial parks are Autumn maple tree, camphor tree, Chinese pistache, Timor Mountain Gum, and Cajeput tree. While the better tree species for coastal other metal industrial parks are iron wood, Chinese Tamarisk, China Berry, Linden Hibiscus, Norfolk island pine, Marabutan and Taiwan date palm. The editing of “Handbook of fast-growing and high-pollutant-uptake trees for steel industrial parks in Taiwan “ was accomplished, and the results of these studies will be useful for greening works in the furure in Taiwan.
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