城市环境中街头树木生长率的大规模决定因素
Brian J Mailloux1, Clare McGillis2, Terryanne Maenza-Gmelch1
1Environmental Science Department, Barnard College, New York, NY, United States of America.
PloS one
|July 11, 2024
概括
一种新的方法使用地址和物种数据准确追踪了纽约街头树的个体生长. 树种,而不是管理,主要决定了生长率,社会脆弱地区的生长速度更快.
科学领域:
- 城市林业城市林业
- 环境科学环境科学
- 生态生态学 生态生态学
背景情况:
- 城市街头树木为城市提供了必要的环境和社会效益.
- 在纽约市 (NYC) 准确的个体树木生长分析之前受到位置不确定性的限制.
- 每十年一次的街头树木普查对于城市森林管理至关重要.
研究的目的:
- 开发一种用于识别个人街道树的新方法,以便随着时间的推移进行增长率分析.
- 为了估计和分析大量纽约街头树的生长率.
- 确定影响树木生长及其空间分布的因素.
主要方法:
- 使用邮政编码,地址和物种来识别单个树木,而不依赖地图坐标的三步对齐过程.
- 个人树木生长率的估计,使用2005年至2015年间对126,362棵树的直径与乳房高度 (DBH) 的差异.
- 通过现场测量和每年对特定树木的监测来验证识别方法.
主要成果:
- 建立了一个新的纽约树木生长数据库,包含59个物种中的126,362棵树.
- 发现了物种间生长速度的显著差异;伦敦行星树生长速度最慢 (0.163英寸/年),而银林生长速度最快 (0.510英寸/年).
- 确定树种是控制生长率的主要因素,当地城市形式和树木管理具有较小的影响. 具有较高社会脆弱性指数的地区出人意料地呈现出更高的增长率.
结论:
- 开发的树木识别方法可以在城市环境中准确地分析个别街道树的生长.
- 树种对生长率有很大影响,这凸显了城市林业中物种选择的重要性.
- 城市树木的生长与社会脆弱性有空间相关,这表明有针对性的管理策略可以增强服务不足地区的生态系统服务.
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