College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China.
School of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China.
Sci Rep. 2023 Nov 23;13(1):20592. doi: 10.1038/s41598-023-44974-y.
Climate change, such as temperature and precipitation changes, is becoming increasingly obvious, and in this context, planting designs need to urgently consider future climate change in advance. A field experiment was conducted in Beijing, China, where the future precipitation is predicted to increase, and extra irrigation was used to simulate the future precipitation increase. The species richness of sown meadows, including spontaneous plants and sown plants, and the adaptive strategies of the communities were recorded under different types of design models and substrates. The results showed that precipitation increased the diversity of sown plants and resource-demanding spontaneous plants but had no significant effect on the dry matter content of the entire community of species. Moreover, the interactions among precipitation and substrate, especially the design models, were significant. Of the models, the three-layer model had the highest species richness and least invasive plants. In addition, increased precipitation significantly changed the functional strategy of the plant community away from ruderals and towards competitor-stress tolerant species. This study provides guidance for the design and management of naturalistic plant communities under climate change.
气候变化，如温度和降水变化，变得越来越明显，在此背景下，种植设计需要提前考虑未来的气候变化。在中国北京进行了一项田间试验，预计未来的降水将会增加，并使用额外的灌溉来模拟未来的降水增加。在不同类型的设计模型和基质下，记录了播种草地的物种丰富度，包括自然植物和播种植物，以及群落的适应策略。结果表明，降水增加了播种植物和资源需求较高的自然植物的多样性，但对整个物种群落的干物质含量没有显著影响。此外，降水与基质之间的相互作用，特别是设计模型之间的相互作用非常显著。在这些模型中，三层模型的物种丰富度最高，入侵植物最少。此外，增加的降水显著改变了植物群落的功能策略，使其从杂草型向竞争者-压力耐受型物种转变。本研究为气候变化下自然植物群落的设计和管理提供了指导。
