Abstract Climate change challenges urban planners, urban designers, landscape architecture professionals and horticulturists to pursue more sustainable vegetation in urban spaces. However, climate change also helps to free up conventional thinking, by making people come to terms with the idea that the future will not be the same as the past. Throughout the past twenty years, there has been much attention directed towards the design of structurally diverse and species-rich naturalistic vegetation for utilisation in urban areas. The aims of this study were to test whether species derived from Continental, near Mediterranean and Temperate maritime grasslands grown in designed meadow-like communities became fitter or less fit under different climate change scenarios. A community of thirty-six species from these three climatic types were chosen to represent a gradient from well-fited to poorly-fited to the current British climate. The species were chosen to share similar morphological characteristics, in terms of canopy height and structure. They were also chosen for their colourful flowers from spring to autumn, to maximise attractiveness to the public. Experiments were conducted to investigate the effects of different climate scenarios on the fitness and growth performance of these species with three watering regimes (50 % increase in precipitation; 50 % decrease in precipitation; and ambient), and two different temperature treatments (ambient and ambient plus 3 °C). The study showed that water availability and temperature have a significant impact on plant species fitness for green space under future climate change scenarios, particularly changed in concert with one another. Poorly fited species used in the study were intolerant of high levels of moisture, but increasing air temperature reduced the negative effect of additional water. Designed naturalistic plant communities of temperate and near Mediterranean plant species are a potentially sustainable element for urban landscape under future UK climate change scenarios. This study is the first to look at the effects of climate fitness on designed communities of native and non-native meadow plant species in urban landscapes.

中文翻译：

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气候变化将如何影响未来的城市自然草本植物种植？植物来源和适应性的作用

摘要 气候变化对城市规划者、城市设计师、景观设计专业人士和园艺家提出了挑战，要求他们在城市空间中追求更可持续的植被。然而，气候变化也有助于解放传统思维，让人们接受未来与过去不同的想法。在过去的 20 年里，设计结构多样且物种丰富的自然植被以供城市地区使用，受到了很多关注。本研究的目的是测试来自大陆、地中海附近和温带海洋草原的物种在设计的草甸状社区中生长是否在不同的气候变化情景下变得更健康或更不适合。选择了来自这三种气候类型的 36 个物种组成的群落，以代表从适合当前英国气候到不太适合当前气候的梯度。选择的物种在冠层高度和结构方面具有相似的形态特征。他们还因其从春天到秋天的五颜六色的花朵而被选中，以最大限度地吸引公众。进行了实验，以研究三种浇水方式（降水量增加 50%；降水量减少 50%；和环境）和两种不同的温度处理（环境和环境温度）下不同气候情景对这些物种的适应性和生长性能的影响。加 3°C）。该研究表明，在未来气候变化情景下，尤其是在相互协调变化的情况下，可用水量和温度对植物物种对绿色空间的适应性有显着影响。研究中使用的适应性较差的物种不能耐受高水平的水分，但气温升高会减少额外水分的负面影响。设计的温带和近地中海植物物种的自然植物群落是未来英国气候变化情景下城市景观的潜在可持续元素。这项研究首次研究了气候适应性对城市景观中本地和非本地草甸植物物种设计群落的影响。研究中使用的适应性较差的物种不能耐受高水平的水分，但气温升高会减少额外水分的负面影响。设计的温带和近地中海植物物种的自然植物群落是未来英国气候变化情景下城市景观的潜在可持续元素。这项研究首次研究了气候适应性对城市景观中本地和非本地草甸植物物种设计群落的影响。研究中使用的适应性较差的物种不能耐受高水平的水分，但气温升高会减少额外水分的负面影响。设计的温带和近地中海植物物种的自然植物群落是未来英国气候变化情景下城市景观的潜在可持续元素。这项研究首次研究了气候适应性对城市景观中本地和非本地草甸植物物种设计群落的影响。