Hyun Junge, Kim You Jin, Yoo Gayoung
Department of Environmental Science and Engineering, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446701, Republic of Korea.
Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990 Incheon, Republic of Korea.
MethodsX. 2023 Mar 4;10:102102. doi: 10.1016/j.mex.2023.102102. eCollection 2023.
The soils in urban greenery considerably contribute to providing ecosystem services. However, appropriate tools to assess and manage urban soil quality under consideration of ecosystem services and soil functions are unavailable. In this study, we aimed to 1) provide detailed instructions for assessing a novel urban soil quality index (uSQI) and 2) propose the application of uSQI in urban soil quality management. The uSQI is the average of the scores for six soil functions. Each soil function was estimated by several measurable indicators that have high correlation with soil functions. The measurable soil indicators are bulk density, saturated hydraulic conductivity, litter-layer depth, mineral-associated organic matter, clay + silt content, inorganic nitrogen concentration, fluorescein diacetate hydrolytic activity, cation exchange capacity, concentrations of potentially toxic elements, and pH. The uSQI effectively identified the soils with low quality due to disturbances. The radar chart of six soil functions comprising uSQI could suggest the direction of management for urban stakeholders.•The uSQI represents soil functions necessary for urban greenery to provide ecosystem services.•The uSQI successfully identified the soils with low quality due to disturbances.
城市绿化中的土壤对提供生态系统服务有很大贡献。然而，在考虑生态系统服务和土壤功能的情况下，尚无评估和管理城市土壤质量的合适工具。在本研究中，我们旨在：1）提供评估一种新型城市土壤质量指数（uSQI）的详细说明；2）提出uSQI在城市土壤质量管理中的应用。uSQI是六种土壤功能得分的平均值。每种土壤功能由与土壤功能高度相关的几个可测量指标估算得出。可测量的土壤指标有容重、饱和导水率、凋落物层深度、矿物结合有机质、粘粒+粉粒含量、无机氮浓度、荧光素二乙酸酯水解活性、阳离子交换容量、潜在有毒元素浓度和pH值。uSQI有效地识别出了因干扰而质量较低的土壤。包含uSQI的六种土壤功能雷达图可为城市利益相关者提供管理方向。
•uSQI代表城市绿化提供生态系统服务所需的土壤功能。
•uSQI成功识别出了因干扰而质量较低的土壤。
