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Zhang F, Gu Z, Wang H, Wang R, Qing J, Xu X, Baoyin T, Zhong L, Rui Y, Li FY. Short term grazing increased growing-season N 2O production and decreased its reduction potential by reducing the abundance and expression of nosZ clade II gene in a semi-arid steppe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 909:168361. [PMID: 37944603 DOI: 10.1016/j.scitotenv.2023.168361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 10/23/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023]
Abstract
Understanding nitrous oxide (N2O) production as well as reduction in response to grazing and mowing is essential for designing better management strategies to improve sustainability of grassland ecosystems. We evaluated how four years of grazing or mowing altered N2O production and reduction potential, gene abundance, and expression of microbial functional groups pertinent to N2O production in situ on a typical grassland in Inner Mongolia. In our study, we found that grazing dramatically raised soil ammonium (NH4+-N) and nitrate (NO3--N) concentrations, AOB gene abundance and potential of N2O production through nitrification (NN2O) and denitrification (DN2O) in summer, but lessened the expression of nosZ clade II gene in all seasons. Mowing had minor effect on soil inorganic nitrogen (N) concentrations. Mowing diminished the quantity of denitrification genes (narG and nosZ), expression of nosZ and nosZ clade II genes, and DN2O concentration. The expression and abundance of nosZ clade II gene were related to DN2. These results suggested that short-term grazing could enhance N2O production potential in peak growing season, while the reduction in abundance and expression of nosZ calde II gene might be an important contributor to the enhanced N2O production of semi-arid typical steppe grasslands.
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Affiliation(s)
- Feifan Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Zhibin Gu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Hongyue Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Ruying Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Jinwu Qing
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Xingliang Xu
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences, Beijing 100101, China
| | - Taogetao Baoyin
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology & Environment, Inner Mongolia University, Hohhot 010021, China
| | - Lei Zhong
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China.
| | - Yichao Rui
- Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Frank Yonghong Li
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology & Environment, Inner Mongolia University, Hohhot 010021, China
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Bennett JM, Thompson A, Goia I, Feldmann R, Ştefan V, Bogdan A, Rakosy D, Beloiu M, Biro IB, Bluemel S, Filip M, Madaj AM, Martin A, Passonneau S, Kalisch DP, Scherer G, Knight TM. A review of European studies on pollination networks and pollen limitation, and a case study designed to fill in a gap. AOB PLANTS 2018; 10:ply068. [PMID: 30591830 PMCID: PMC6302952 DOI: 10.1093/aobpla/ply068] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 10/01/2018] [Accepted: 10/30/2018] [Indexed: 05/30/2023]
Abstract
Anthropogenic environmental change disrupts interactions between plants and their animal pollinators. To assess the importance of different drivers, baseline information is needed on interaction networks and plant reproductive success around the world. We conducted a systematic literature review to determine the state of our knowledge on plant-pollinator interactions and the ecosystem services they provide for European ecosystems. We focussed on studies that published information on plant-pollinator networks, as a community-level assessment of plant-pollinator interactions and pollen limitation, which assesses the degree to which plant reproduction is limited by pollinator services. We found that the majority of our knowledge comes from Western Europe, and thus there is a need for baseline assessments in the traditional landscapes of Eastern Europe. To address this data gap, we quantified plant-pollinator interactions and conducted breeding system and pollen supplementation experiments in a traditionally managed mountain meadow in the Western Romanian Carpathians. We found the Romanian meadow to be highly diverse, with a healthy plant-pollinator network. Despite the presence of many pollinator-dependent plant species, there was no evidence of pollen limitation. Our study is the first to provide baseline information for a healthy meadow at the community level on both plant-pollinator interactions and their relationship with ecosystem function (e.g. plant reproduction) in an Eastern European country. Alongside the baseline data, we also provide recommendations for future research, and the methodological information needed for the continued monitoring and management of Eastern European meadows.
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Affiliation(s)
- Joanne M Bennett
- Institute of Biology, Martin Luther University Halle-Wittenberg, Am Kirchtor, Halle (Saale), Germany
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz, Leipzig, Germany
| | - Amibeth Thompson
- Institute of Biology, Martin Luther University Halle-Wittenberg, Am Kirchtor, Halle (Saale), Germany
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz, Leipzig, Germany
| | - Irina Goia
- Faculty of Biology and Geology, Babeș-Bolyai University, Cluj-Napoca, Romania
| | - Reinart Feldmann
- Helmholtz Centre for Environmental Research – UFZ, Permoserstr. 15, Leipzig, Germany
| | - Valentin Ştefan
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz, Leipzig, Germany
- Department Community Ecology, Helmholtz Centre for Environmental Research – UFZ, Theodor-Lieser-Straße, Halle (Saale), Germany
| | - Ana Bogdan
- Faculty of Biology and Geology, Babeș-Bolyai University, Cluj-Napoca, Romania
| | - Demetra Rakosy
- Department Community Ecology, Helmholtz Centre for Environmental Research – UFZ, Theodor-Lieser-Straße, Halle (Saale), Germany
- Department for Integrative Zoology, Faculty of Life Sciences, University Vienna, Althanstrasse, Vienna, Austria
| | - Mirela Beloiu
- University of Bayreuth, Department of Biogeography, Bayreuth, Germany
| | - Inge-Beatrice Biro
- University of Freiburg, Chair of Environmental Governance, Freiburg, Germany
| | - Simon Bluemel
- Faculty of Biology and Biotechnology, Ruhr University Bochum, Universitätsstraße, Bochum, Germany
| | - Milena Filip
- Faculty of Biology and Geology, Babeș-Bolyai University, Cluj-Napoca, Romania
| | - Anna-Maria Madaj
- Institute of Biology, Martin Luther University Halle-Wittenberg, Am Kirchtor, Halle (Saale), Germany
- Department Community Ecology, Helmholtz Centre for Environmental Research – UFZ, Theodor-Lieser-Straße, Halle (Saale), Germany
| | - Alina Martin
- Nees Institut für Biodiversität der Pflanzen, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
| | - Sarah Passonneau
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz, Leipzig, Germany
- Department Community Ecology, Helmholtz Centre for Environmental Research – UFZ, Theodor-Lieser-Straße, Halle (Saale), Germany
| | - Denisa P Kalisch
- Faculty of Biology and Geology, Babeș-Bolyai University, Cluj-Napoca, Romania
| | - Gwydion Scherer
- Osnabrück University, Department of Biodiversity and Landscape Ecology, Barbarastraße, Osnabrück, Germany
| | - Tiffany M Knight
- Institute of Biology, Martin Luther University Halle-Wittenberg, Am Kirchtor, Halle (Saale), Germany
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz, Leipzig, Germany
- Department Community Ecology, Helmholtz Centre for Environmental Research – UFZ, Theodor-Lieser-Straße, Halle (Saale), Germany
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