Rémy Beugnon, Nico Eisenhauer, Alfred Lochner, Margarete J. Blechinger, Paula E. Buhr, Simone Cesarz, Monica A. Farfan, Olga Ferlian, Amanda J. Rompeltien Howard, Yuanyuan Huang, Blanca S. Kuhlmann, Nora Lienicke, Selma Mählmann, Anneke Nowka, Emanuel Petereit, Christian Ristok, Martin Schädler, Jonas T. M. Schmid, Lara J. Schulte, Kora-Lene Seim, Lise Thouvenot, Raphael Tremmel, Lara Weber, Jule Weitowitz, Huimin Yi, Marie Sünnemann
{"title":"可持续土地利用增强土壤微生物呼吸对实验性热胁迫的响应","authors":"Rémy Beugnon, Nico Eisenhauer, Alfred Lochner, Margarete J. Blechinger, Paula E. Buhr, Simone Cesarz, Monica A. Farfan, Olga Ferlian, Amanda J. Rompeltien Howard, Yuanyuan Huang, Blanca S. Kuhlmann, Nora Lienicke, Selma Mählmann, Anneke Nowka, Emanuel Petereit, Christian Ristok, Martin Schädler, Jonas T. M. Schmid, Lara J. Schulte, Kora-Lene Seim, Lise Thouvenot, Raphael Tremmel, Lara Weber, Jule Weitowitz, Huimin Yi, Marie Sünnemann","doi":"10.1111/gcb.70214","DOIUrl":null,"url":null,"abstract":"<p>Soil microbial communities provide numerous ecosystem functions, such as nutrient cycling, decomposition, and carbon storage. However, global change, including land-use and climate changes, affects soil microbial communities and activity. As extreme weather events (e.g., heatwaves) tend to increase in magnitude and frequency, we investigated the effects of heat stress on the activity (e.g., respiration) of soil microbial communities that had experienced four different long-term land-use intensity treatments (ranging from extensive grassland and intensive grassland to organic and conventional croplands) and two climate conditions (ambient vs. predicted future climate). We hypothesized that both intensive land use and future climate conditions would reduce soil microbial respiration (H1) and that experimental heat stress would increase microbial respiration (H2). However, this increase would be less pronounced in soils with a long-term history of high-intensity land use and future climate conditions (H3), and soils with a higher fungal-to-bacterial ratio would show a more moderate response to warming (H4). Our study showed that soil microbial respiration was reduced under high land-use intensity (i.e., −43% between extensive grassland and conventional cropland) and future climate conditions (−12% in comparison to the ambient climate). Moreover, heat stress increased overall microbial respiration (+17% per 1°C increase), while increasing land-use intensity reduced the strength of this response (−25% slope reduction). In addition, increasing soil microbial biomass and fungal-to-bacterial ratio under low-intensity land use (i.e., extensive grassland) enhanced the microbial respiration response to heat stress. These findings show that intensive land use and climate change may compromise the activity of soil microbial communities as well as their respiration under heatwaves. In particular, soil microbial communities under high-intensity land use and future climate are less able to respond to additional stress, such as heatwaves, potentially threatening the critical ecosystem functions driven by soil microbes and highlighting the benefits of more sustainable agricultural practices.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 4","pages":""},"PeriodicalIF":10.8000,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70214","citationCount":"0","resultStr":"{\"title\":\"Sustainable Land Use Enhances Soil Microbial Respiration Responses to Experimental Heat Stress\",\"authors\":\"Rémy Beugnon, Nico Eisenhauer, Alfred Lochner, Margarete J. Blechinger, Paula E. Buhr, Simone Cesarz, Monica A. Farfan, Olga Ferlian, Amanda J. Rompeltien Howard, Yuanyuan Huang, Blanca S. Kuhlmann, Nora Lienicke, Selma Mählmann, Anneke Nowka, Emanuel Petereit, Christian Ristok, Martin Schädler, Jonas T. M. Schmid, Lara J. Schulte, Kora-Lene Seim, Lise Thouvenot, Raphael Tremmel, Lara Weber, Jule Weitowitz, Huimin Yi, Marie Sünnemann\",\"doi\":\"10.1111/gcb.70214\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Soil microbial communities provide numerous ecosystem functions, such as nutrient cycling, decomposition, and carbon storage. However, global change, including land-use and climate changes, affects soil microbial communities and activity. As extreme weather events (e.g., heatwaves) tend to increase in magnitude and frequency, we investigated the effects of heat stress on the activity (e.g., respiration) of soil microbial communities that had experienced four different long-term land-use intensity treatments (ranging from extensive grassland and intensive grassland to organic and conventional croplands) and two climate conditions (ambient vs. predicted future climate). We hypothesized that both intensive land use and future climate conditions would reduce soil microbial respiration (H1) and that experimental heat stress would increase microbial respiration (H2). However, this increase would be less pronounced in soils with a long-term history of high-intensity land use and future climate conditions (H3), and soils with a higher fungal-to-bacterial ratio would show a more moderate response to warming (H4). Our study showed that soil microbial respiration was reduced under high land-use intensity (i.e., −43% between extensive grassland and conventional cropland) and future climate conditions (−12% in comparison to the ambient climate). Moreover, heat stress increased overall microbial respiration (+17% per 1°C increase), while increasing land-use intensity reduced the strength of this response (−25% slope reduction). In addition, increasing soil microbial biomass and fungal-to-bacterial ratio under low-intensity land use (i.e., extensive grassland) enhanced the microbial respiration response to heat stress. These findings show that intensive land use and climate change may compromise the activity of soil microbial communities as well as their respiration under heatwaves. 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Sustainable Land Use Enhances Soil Microbial Respiration Responses to Experimental Heat Stress
Soil microbial communities provide numerous ecosystem functions, such as nutrient cycling, decomposition, and carbon storage. However, global change, including land-use and climate changes, affects soil microbial communities and activity. As extreme weather events (e.g., heatwaves) tend to increase in magnitude and frequency, we investigated the effects of heat stress on the activity (e.g., respiration) of soil microbial communities that had experienced four different long-term land-use intensity treatments (ranging from extensive grassland and intensive grassland to organic and conventional croplands) and two climate conditions (ambient vs. predicted future climate). We hypothesized that both intensive land use and future climate conditions would reduce soil microbial respiration (H1) and that experimental heat stress would increase microbial respiration (H2). However, this increase would be less pronounced in soils with a long-term history of high-intensity land use and future climate conditions (H3), and soils with a higher fungal-to-bacterial ratio would show a more moderate response to warming (H4). Our study showed that soil microbial respiration was reduced under high land-use intensity (i.e., −43% between extensive grassland and conventional cropland) and future climate conditions (−12% in comparison to the ambient climate). Moreover, heat stress increased overall microbial respiration (+17% per 1°C increase), while increasing land-use intensity reduced the strength of this response (−25% slope reduction). In addition, increasing soil microbial biomass and fungal-to-bacterial ratio under low-intensity land use (i.e., extensive grassland) enhanced the microbial respiration response to heat stress. These findings show that intensive land use and climate change may compromise the activity of soil microbial communities as well as their respiration under heatwaves. In particular, soil microbial communities under high-intensity land use and future climate are less able to respond to additional stress, such as heatwaves, potentially threatening the critical ecosystem functions driven by soil microbes and highlighting the benefits of more sustainable agricultural practices.
期刊介绍:
Global Change Biology is an environmental change journal committed to shaping the future and addressing the world's most pressing challenges, including sustainability, climate change, environmental protection, food and water safety, and global health.
Dedicated to fostering a profound understanding of the impacts of global change on biological systems and offering innovative solutions, the journal publishes a diverse range of content, including primary research articles, technical advances, research reviews, reports, opinions, perspectives, commentaries, and letters. Starting with the 2024 volume, Global Change Biology will transition to an online-only format, enhancing accessibility and contributing to the evolution of scholarly communication.