Adding a mosaic mowing regime to urban lawns is the key to city biodiversity management for pollinators

IF 6 2区 环境科学与生态学 Q1 ENVIRONMENTAL STUDIES Urban Forestry & Urban Greening Pub Date : 2024-07-23 DOI:10.1016/j.ufug.2024.128452
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Abstract

City populations are growing rapidly, with built-up areas occupying ever-larger areas within the cities. One of the last green places in a city is urban lawns. Our study aimed to investigate how lawn management changes can contribute to improving insect pollinator biodiversity at the city scale. Over two years, we studied dozens of urban lawns in Prague (Czech Republic) that were partially left unmown, and we selected three major groups of pollinators: Lepidoptera, Coleoptera and Hymenoptera. This study showed that leaving unmown lawn areas has a strong positive effect on insect biodiversity. The high intensity of lawn flowering through the vegetation season was also crucial. Our research showed that leaving unmown parts of urban lawns is one of the key amendments to maintain or even increase pollinator biodiversity in cities. It also appears to be the best way to attract red-listed species. A significant reducing mowing frequency to achieve a higher flowering intensity should be a positive solution. So-called insect gardening by reducing urban lawn mowing frequency or leaving parts of lawns completely unmown can help not only pollinators but also other animals that find food or shelter in them. This management will also enable the propagation of flowering plants. Additionally, biodiversity measures coincide with reducing evapotranspiration and thus cooling urban heat islands.

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在城市草坪中采用镶嵌式修剪方法是为传粉昆虫进行城市生物多样性管理的关键所在
城市人口迅速增长,城市建成区所占面积越来越大。城市草坪是城市中最后的绿地之一。我们的研究旨在探讨草坪管理的改变如何有助于改善城市范围内昆虫授粉者的生物多样性。在两年多的时间里,我们研究了布拉格(捷克共和国)数十个部分未修剪的城市草坪,并选择了三大类传粉昆虫:鳞翅目、鞘翅目和膜翅目。这项研究表明,保留未修剪的草坪区域对昆虫的生物多样性有很大的积极影响。草坪在整个植被季节的高强度开花也至关重要。我们的研究表明,保留城市草坪中未刈割的部分是维持甚至增加城市传粉昆虫生物多样性的关键措施之一。这似乎也是吸引红色名录物种的最佳方式。大幅减少修剪频率以达到更高的开花强度应该是一个积极的解决方案。通过减少城市草坪的修剪频率或让部分草坪完全不修剪来实现所谓的昆虫园艺,不仅可以帮助传粉昆虫,还可以帮助其他在草坪中寻找食物或栖息地的动物。这种管理方式还能促进开花植物的繁殖。此外,生物多样性措施还能减少蒸发,从而冷却城市热岛。
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来源期刊
CiteScore
11.70
自引率
12.50%
发文量
289
审稿时长
70 days
期刊介绍: Urban Forestry and Urban Greening is a refereed, international journal aimed at presenting high-quality research with urban and peri-urban woody and non-woody vegetation and its use, planning, design, establishment and management as its main topics. Urban Forestry and Urban Greening concentrates on all tree-dominated (as joint together in the urban forest) as well as other green resources in and around urban areas, such as woodlands, public and private urban parks and gardens, urban nature areas, street tree and square plantations, botanical gardens and cemeteries. The journal welcomes basic and applied research papers, as well as review papers and short communications. Contributions should focus on one or more of the following aspects: -Form and functions of urban forests and other vegetation, including aspects of urban ecology. -Policy-making, planning and design related to urban forests and other vegetation. -Selection and establishment of tree resources and other vegetation for urban environments. -Management of urban forests and other vegetation. Original contributions of a high academic standard are invited from a wide range of disciplines and fields, including forestry, biology, horticulture, arboriculture, landscape ecology, pathology, soil science, hydrology, landscape architecture, landscape planning, urban planning and design, economics, sociology, environmental psychology, public health, and education.
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