年度	2021
全部作者	林增毅,連維得, 王介鼎
作者類別	First Author
論文名稱	快速評估溪頭柳杉人工林鼠害之嚴重程度與空間分佈
期刊名稱	臺大實驗林研究報告
卷數	35
期數	3
頁碼	163-170
期刊等級	Others
總頁數	8
發表日期	2021-09-01
摘要	For many years, red-bellied tree squirrel has caused significant damage to Cryptomeria japonica plantations at Xitou Nature Education Area such that it has raised serious concerns among researchers and managers. This research aimed at applying a published rapid assessment mechanism to visually assess squirrel damage among the C. japonica trees in a pure species planted stand at Xitou to understand whether the mechanism could assess damage severity and map its spatial distribution. The rapid assessment found that 80.98% (± 7.65%) of trees were affected by squirrel with the severity increasing from Southwest to Northeast. When using coloration at tree crown as an indicator, squirrel damage appeared to move from Southwest to Northeast as well. The middle section of the stand received the most severe damage and the highest number of forking suggested repeated damage by squirrel. Tree height to fork increased from South to North and from West to East suggesting less amount of merchantable wood on the Southwest section of the stand than the Northeast section. As a result, this study presents the applicability of the rapid assessment mechanism to spatially observe squirrel damage, which could benefit stand management and silvicultural treatment design.
語言	中文
所屬計畫案	臺大實驗林(109實試 A-01)