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伟大的生态系统服务带来了伟大的责任:城市植被在巴西城市提供的好处
Helder Marcos Nunes Candido1, Theodore A Endreny2, Fabrício Alvim Carvalho3
1Graduate Program in Biodiversity and Nature Conservation, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil.
Plants (Basel, Switzerland)
|February 13, 2025
概括
城市森林提供重要的生态系统服务,每年封存大量碳并储存大量碳. 人类更高的发展往往与更难以穿透的表面相关,影响了这些自然的好处.
科学领域:
- 环境科学 环境科学
- 城市生态城市生态学
- 生态系统服务评估
背景情况:
- 城市森林在全球可持续发展中发挥着关键作用,但经常被转化为人类修改的景观.
- 生态系统服务 (ES) 对城市地区至关重要,需要了解它们的提供和价值.
- 巴西大西洋森林地区在平衡城市发展与生态保护方面面临着挑战.
研究的目的:
- 分析巴西大西洋森林25个城市的城市区域提供的生态系统服务.
- 量化城市植被产生的货币效益,特别是碳捕获和储存.
- 研究生态系统服务,土地使用模式和社会经济变量 (人口密度,人均国民生产总值,人均GDP) 之间的关系.
主要方法:
- 使用i-Tree Canopy v.7.1软件进行了土地使用分类.
- 量化了城市植被的货币效益,重点关注碳捕获和储存.
- 斯皮尔曼的校对图分析被用来评估土地利用,社会经济因素和生态系统服务之间的相关性.
主要成果:
- 研究的城市总共封存了235.3千的碳和864.82千的二氧化碳等价物 (CO2等价物). 每年一次,每年一次.
- 总共有4861.19千的碳和17824.32千的二氧化碳等值. 是由城市植被储存的.
- 年平均碳封存价值估计为357万美元,储存碳价值为7376万美元.
- 在人口密度和不透气,非可种植面积之间发现了显著的正相关性 (p < 0.001).
- 更高的人类发展指数 (HDI) 与增加的不透气区域 (p = 0.01) 有积极的相关性.
结论:
- 大西洋森林的城市植被提供了大量的生态系统服务,包括大量的碳捕获和储存,具有相当大的货币价值.
- 城市发展模式,特别是增加的透性,与社会经济因素如人口密度和人类发展指数 (HDI) 有关.
- 调查结果强调,决策者需要优先考虑城市生态系统服务,以提高城市的可持续性和弹性.
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