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Chen X, Hou G, Shi P, Zong N, Yu J. Functional Groups Dominate Aboveground Net Primary Production under Long-Term Nutrient Additions in a Tibetan Alpine Meadow. PLANTS (BASEL, SWITZERLAND) 2024; 13:344. [PMID: 38337876 PMCID: PMC10857096 DOI: 10.3390/plants13030344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/09/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024]
Abstract
Anthropogenic nutrient additions are influencing the structure and function of alpine grassland ecosystems. However, the underlying mechanisms of the direct and indirect effects of nutrient additions on aboveground net primary productivity (ANPP) are not well understood. In this study, we conducted an eight-year field experiment to explore the ecological consequences of nitrogen (N) and/or phosphorous (P) additions on the northern Tibetan Plateau. ANPP, species diversity, functional diversity, and functional groups were used to assess species' responses to increasing nutrients. Our results showed that nutrient additions significantly increased ANPP due to the release in nutrient limitations. Although N addition had a significant effect on species richness and functional richness, and P and N + P additions altered functional diversity, it was functional groups rather than biodiversity that drove changes in ANPP in the indirect pathways. We identified the important roles of N and P additions in begetting the dominance of grasses and forbs, respectively. The study highlights that the shift of functional groups should be taken into consideration to better predict the structure, function, and biodiversity-ANPP relationship in grasslands, particularly under future multifaceted global change.
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Affiliation(s)
- Xueying Chen
- Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (X.C.); (G.H.); (N.Z.); (J.Y.)
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Ge Hou
- Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (X.C.); (G.H.); (N.Z.); (J.Y.)
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Peili Shi
- Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (X.C.); (G.H.); (N.Z.); (J.Y.)
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Ning Zong
- Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (X.C.); (G.H.); (N.Z.); (J.Y.)
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Jialuo Yu
- Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (X.C.); (G.H.); (N.Z.); (J.Y.)
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China
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Guo X, Zuo X, Medina-Roldán E, Guo A, Yue P, Zhao X, Qiao J, Li X, Chen M, Wei C, Yang T, Ke Y, Yu Q. Effects of multi-resource addition on grassland plant productivity and biodiversity along a resource gradient. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159367. [PMID: 36240924 DOI: 10.1016/j.scitotenv.2022.159367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/23/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
The change of plant biodiversity caused by resource-enhancing global changes has greatly affected grassland productivity. However, it remains unclear how multi-resource enrichment induces the effects of multifaceted biodiversity on grassland productivity under different site resource constraints. We conducted a multiple resource addition (MRA) experiment of water and nutrients at three sites located along a resource gradient in northern China. This allowed us to assess the response of aboveground net primary productivity (ANPP), species (species richness and plant density), functional (functional richness and community-weighted mean of traits) and phylogenetic (phylogenetic richness) diversity to increasing number of MRA. We used structural equation model (SEM) to examine the direct and indirect effects of MRA and multifaceted biodiversity on ANPP. The combined addition of the four resources increased ANPP at all three sites. But with increasing number of MRA, biodiversity varied at the three sites. At the high resource constraint site, species richness, plant density and leaf nitrogen concentration (LNC) increased. At the medium resource constraint site, plant height and LNC increased, leaf dry matter content (LDMC) decreased. At the low resource constraint site, species, functional and phylogenetic richness decreased, and height increased. The SEM showed that MRA increased ANPP directly at all three sites, and indirectly by increasing plant density at the high constraint site and height at the medium constraint site. Independent of MRA, ANPP was affected by height at the high resource constraint site and LNC at the low resource constraint site. Our results illustrate that multi-resource addition positively affects productivity, while affects biodiversity depending on site resource constraint. The study highlights that site resource constraint conditions need to be taken into consideration to better predict grassland structure and function, particularly under the future multifaceted global change scenarios.
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Affiliation(s)
- Xinxin Guo
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xiaoan Zuo
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou 730000, China; Naiman Desertification Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Lanzhou 730000, China.
| | - Eduardo Medina-Roldán
- Institute of BioEconomy-National Research Council (IBE-NRC), 50019 Sesto Fiorentino, Italy
| | - Aixia Guo
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou 730000, China
| | - Ping Yue
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou 730000, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Lanzhou 730000, China.
| | - Xueyong Zhao
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou 730000, China; Naiman Desertification Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Lanzhou 730000, China.
| | - Jingjuan Qiao
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiangyun Li
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Min Chen
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou 730000, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Lanzhou 730000, China
| | - Cunzheng Wei
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
| | - Tian Yang
- National Hulunber Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuguang Ke
- National Hulunber Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qiang Yu
- School of Grassland Science, Beijing Forestry University, Beijing 100083, China.
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Borer ET, Stevens CJ. Nitrogen deposition and climate: an integrated synthesis. Trends Ecol Evol 2022; 37:541-552. [PMID: 35428538 DOI: 10.1016/j.tree.2022.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/20/2022] [Accepted: 02/23/2022] [Indexed: 11/18/2022]
Abstract
Human activities have more than doubled reactive nitrogen (N) deposited in ecosystems, perturbing the N cycle and considerably impacting plant, animal, and microbial communities. However, biotic responses to N deposition can vary widely depending on factors including local climate and soils, limiting our ability to predict ecosystem responses. Here, we synthesize reported impacts of elevated N on grasslands and draw upon evidence from the globally distributed Nutrient Network experiment (NutNet) to provide insight into causes of variation and their relative importance across scales. This synthesis highlights that climate and elevated N frequently interact, modifying biotic responses to N. It also demonstrates the importance of edaphic context and widespread interactions with other limiting nutrients in controlling biotic responses to N deposition.
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Affiliation(s)
- Elizabeth T Borer
- Department of Ecology, Evolution, and Behavior, University of Minnesota, St Paul, MN 55108, USA.
| | - Carly J Stevens
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
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Abstract
Plant invasion is significantly affected by environmental factors in the recipient habitats and affects the stability and sustainable development of society. The invasiveness of alien plants may be increased by anthropogenic-mediated disturbances, such as fluctuations in nutrients caused by excessive emissions of nitrogen (N) and phosphorus (P). To improve our understanding of the interactions between N and P fluctuations and invasive alien plants, the current report focuses on the biogeochemical behavior of N and P among invasive alien plants, native plants, and the soil within the plant–soil ecosystem. Our research, together with a synthesis of the literature, shows that fluctuations in N and P resources provide more opportunities and competitiveness for plant invasion. At the same time, the biogeochemical cycles of N and P are promoted because of their efficient and increased utilization and rate of release by invasive alien plants. However, there is no consensus on whether the N and P compositions of invasive species are different from those of the natives in their habitat. Quantitative studies that compare N and P contents in plant, litter, and soil between native plant communities and invaded communities on a global scale are an indispensable area of research focus for the future.
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Miranda ARL, Antunes JEL, de Araujo FF, Melo VMM, Bezerra WM, Van den Brink PJ, Araujo ASFD. Less abundant bacterial groups are more affected than the most abundant groups in composted tannery sludge-treated soil. Sci Rep 2018; 8:11755. [PMID: 30082922 PMCID: PMC6079073 DOI: 10.1038/s41598-018-30292-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 07/27/2018] [Indexed: 11/13/2022] Open
Abstract
The application of composted tannery sludge (CTS) has promoted shifts in soil chemical properties and, therefore, can affect the soil bacterial community. This study assessed the effect of the CTS on the soil bacterial community over time. The CTS was applied at five rates (0, 2.5, 5, 10 and 20 t/ha), and the bacterial community was evaluated for 180 days. The principal curve response (PRC) analysis showed that the most abundant phyla were not influenced by the CTS rates over time, while the analysis of the bacterial community showed that some of the less abundant phyla were influenced by the CTS rates. Similarly, the PRC analysis for the bacterial classes showed the significant effect of the CTS rates. The redundancy analyses for the bacterial phyla and classes showed the relationship between the significant chemical properties and the bacterial community of the soil after the CTS amendment over time. Therefore, there was a shift in the bacterial community over time with the application of the composted tannery sludge. Our study has shown that the less abundant bacterial groups were more influenced by the CTS than the most abundant bacterial groups and that these bacterial groups were driven by soil chemical properties, primarily chromium (Cr) and the soil pH.
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Affiliation(s)
- Ana Roberta Lima Miranda
- Federal University of Piauí, Department of Agricultural Engineering and Soil Science, Teresina, 64049-550, Brazil
| | - Jadson Emanuel Lopes Antunes
- Federal University of Piauí, Department of Agricultural Engineering and Soil Science, Teresina, 64049-550, Brazil
| | | | | | | | - Paul J Van den Brink
- Wageningen University, Aquatic Ecology and Water Quality Management Group, Wageningen, P.O. Box 47, 6700 AA, The Netherlands
- Wageningen Environmental Research (Alterra), Wageningen, P.O. Box 47, 6700 AA, The Netherlands
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Biederman L, Mortensen B, Fay P, Hagenah N, Knops J, La Pierre K, Laungani R, Lind E, McCulley R, Power S, Seabloom E, Tognetti P. Nutrient addition shifts plant community composition towards earlier flowering species in some prairie ecoregions in the U.S. Central Plains. PLoS One 2017; 12:e0178440. [PMID: 28552986 PMCID: PMC5446158 DOI: 10.1371/journal.pone.0178440] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 05/12/2017] [Indexed: 11/19/2022] Open
Abstract
The distribution of flowering across the growing season is governed by each species’ evolutionary history and climatic variability. However, global change factors, such as eutrophication and invasion, can alter plant community composition and thus change the distribution of flowering across the growing season. We examined three ecoregions (tall-, mixed, and short-grass prairie) across the U.S. Central Plains to determine how nutrient (nitrogen (N), phosphorus, and potassium (+micronutrient)) addition alters the temporal patterns of plant flowering traits. We calculated total community flowering potential (FP) by distributing peak-season plant cover values across the growing season, allocating each species’ cover to only those months in which it typically flowers. We also generated separate FP profiles for exotic and native species and functional group. We compared the ability of the added nutrients to shift the distribution of these FP profiles (total and sub-groups) across the growing season. In all ecoregions, N increased the relative cover of both exotic species and C3 graminoids that flower in May through August. The cover of C4 graminoids decreased with added N, but the response varied by ecoregion and month. However, these functional changes only aggregated to shift the entire community’s FP profile in the tall-grass prairie, where the relative cover of plants expected to flower in May and June increased and those that flower in September and October decreased with added N. The relatively low native cover in May and June may leave this ecoregion vulnerable to disturbance-induced invasion by exotic species that occupy this temporal niche. There was no change in the FP profile of the mixed and short-grass prairies with N addition as increased abundance of exotic species and C3 graminoids replaced other species that flower at the same time. In these communities a disturbance other than nutrient addition may be required to disrupt phenological patterns.
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Affiliation(s)
- Lori Biederman
- Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, Iowa, United States of America
- * E-mail:
| | - Brent Mortensen
- Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, Iowa, United States of America
| | - Philip Fay
- USDA-ARS Grassland Soil and Water Research Lab, United States Department of Agriculture–Agricultural Research Service, Temple, Texas, United States of America
| | - Nicole Hagenah
- School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Johannes Knops
- School of Biological Science, University of Nebraska, Lincoln, Nebraska, United States of America
| | - Kimberly La Pierre
- Department of Integrative Biology, University of California, Berkeley, California, United States of America
| | - Ramesh Laungani
- Department of Biology, Doane University, Crete, Nebraska, United States of America
| | - Eric Lind
- Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, Minnesota, United States of America
| | - Rebecca McCulley
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, Kentucky, United States of America
| | - Sally Power
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales, Australia
| | - Eric Seabloom
- Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, Minnesota, United States of America
| | - Pedro Tognetti
- IFEVA, Universidad de Buenos Aires, CONICET, Facultad de Agronomía, Buenos Aires, Argentina
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