Key message

Pervious pavement showed lower inhibition on tree growth and biomass than impervious pavement and ash is more tolerant and more suitable to be planted on pavement than pine and maple.

Abstract

Trees are widely planted on paved soil in urban environments. However, little is known about the effects of altered microenvironments on the growth and biomass of trees. In this study, seedlings of three common urban trees, pine (Pinus tabuliformis Carr.), ash (Fraxinus chinensis Roxb.), and maple (Acer truncatum Bunge) were planted on pervious and impervious pavements for over 6 years. Unpaved soil was used as a control. Pavement significantly increased surface and soil temperatures, and altered soil moisture. Pervious pavement had higher surface and soil temperatures and soil moisture than impervious pavement. Compared with the control, tree biomass significantly decreased by 27.1–40.7% for all the three species under impervious pavement, while tree biomass significantly decreased by 28.6% only for maple under pervious pavement. Tree biomass was negatively related to soil temperature and positively to soil moisture. Heat stress caused by pavement could be alleviated as trees grow because of the progressive shading of tree canopy. Management practices such as prevention of heat and drought stresses, selection of tolerant species and use of pervious pavement should be advocated for promoting urban greening.

中文翻译：

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路面对松树、白蜡树和枫树幼树生长和生物量的影响

关键信息

透水路面对树木生长和生物量的抑制作用低于不透水路面，灰烬比松树和枫树更耐受，更适合在路面种植。

抽象的

在城市环境中，树木被广泛种植在铺好的土壤上。然而，关于微环境改变对树木生长和生物量的影响知之甚少。在这项研究中，三种常见的城市树木，松树（Pinus tabuliformis Carr .）、白蜡（Fraxinus chinensis Roxb.）和枫树（Acer truncatum）的幼苗Bunge）在透水和不透水路面上种植超过 6 年。未铺砌的土壤用作对照。路面显着增加了地表和土壤温度，并改变了土壤湿度。透水路面比不透水路面具有更高的表面和土壤温度以及土壤湿度。与对照相比，不透水路面下三种树种的树木生物量均显着降低了27.1-40.7%，而透水路面下仅枫树的树木生物量显着降低了28.6%。树木生物量与土壤温度呈负相关，与土壤水分呈正相关。由于树冠逐渐遮荫，随着树木的生长，路面引起的热应力可以得到缓解。管理实践，例如防止高温和干旱胁迫，