56 Chen et al: Intelligent Survey Technologies for Urban Forests in Taiwan Figure 6. Information management system interface of tree maps. URBAN FOREST SURVEY AND INTELLIGENT OPERATION AND MANAGEMENT IN TAIWAN IN THE FUTURE Ordóñez et al. (2020) discussed how to evaluate man- agement and be consistent with the decisions of the managers. For example, most managers agree that the developments and climate changes of a city bring new challenges and opportunities owing to their urban forest protection and expansion policy. The urban for- ests will be removed or rebuilt in the future. Thus, many challenges are focused on solving these prob- lems. It is very important to share the problems of developments and environmental threats with local administrators, so that they can reach a consensus for urban forest management. This research can conclude that good communication will promote a transparent platform, complete the revealing data, encourage rea- sonable discussion, and reach a consensus for urban forest management. There are 22 administrative regions in Taiwan. This research surveyed 6 regions with 85,000 trees, includ- ing 2,768 protected trees and 82,232 roadside trees since 2010. Some trees were surveyed in 2021, but we esti- mate that more than 15,000 trees were counted. The contents of the tree survey include basic information and processing, health and risk assessments, informa- tion management system building, trimming standards, ©2022 International Society of Arboriculture environmental education events, NDT, and detailed detection for termite invasions. The results of the street tree survey can be used by management agencies to inform tree management decisions. If the street trees should be felled and replaced, the number and loca- tion of the replacement species should be planned in advance. In addition, good management will reduce the conflicts between residents and forest managers. CONCLUSION This research proposes that the urban forest survey and intellectualization management focus on 3 main parts in Taiwan: (1) urban forest basic survey, (2) urban forest information management system, and (3) urban forest action tutorial system. Urban Forest Basic Survey The basic survey of an urban forest includes informa- tion on tree species, diameter at breast height, tree height, tree health assessment, etc. Number labels are written and hung on each tree. Completing periodic inspec- tions ensures the condition of trees and labels. The trees will be rechecked every 5 years to determine their conditions of health and growth. The detailed contents include field surveys, data measurements to include in-vehicle LiDAR if the cost and environment permit it, image registration, health evaluation, and data process- ing, which are the bases of urban forest management.
March 2022
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