惠蓀林場香杉人工林之森林健康評估

Assessment of forest health for a Luanta-fi r (Cunninghamia lanceolata var. konishii) plantation in Huisun Forest Experimental Station

本研究旨在探討惠蓀林場香杉人工林健康之評估，全林依據吊床設施之設置，可分為吊床區（Hammock Area, HA）與非吊床區（Non-Hammock Area, NHA），其中吊床區中又依林木是否設置吊床可再細分為吊床木（Hammock Tree, HT）與非吊床木（Non-Hammock Tree, NHT）。本研究為掌握全林之健康情況，採每木調查法，係以單木進行林木健康度之評估；並根據上述林木區分為吊床區－吊床木（HA-HT）、吊床區－非吊床木（HA-NHT）及非吊床區林木（Tree in Non-Hammock Area , TNHA）。全林共計481株林木，與上述三類之林木株數依序分別為43株、350株及88株，本研究以上類別進行ANOVA分析，結果顯示不同類別林木之健康程度達顯著差異（F=8.947, P The purpose of this research was to assess forest health for a Luanta-fir (Cunninghamia lanceolata var. konishii) plantation in the Huisun Forest Experimental Station Area. The study site was divided into two areas, the Hammock Area (HA) and the Non-Hammock Area (NHA). Trees in the HA can be further classifi ed into hammock trees (HA-HT) and non-hammock trees (HA-NHT). Trees in the NHA were composed of single tree type, namely tree in non-hammock area (TNHA). The tree health conditions were assessed among HA-HT, HA-NHT and TNHA based on tree health indicators. A total of 481 trees were accessed, with HA-HT, HA-NHT and TNHA contained 43, 350 and 88 trees, respectively. The ANOVA results showed that the scores of tree health signifi cantly differed among HA-HT, HA-NHT and TNHA (F=8.947, P