Coenological Investigations of Grassland Ecosystems

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Ecology".

Deadline for manuscript submissions: 15 December 2025 | Viewed by 107

Special Issue Editors


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Guest Editor
Department of Botany, Institute of Agronomy, Hungarian University of Agriculture and Life Science, 2100 Gödöllő, Hungary
Interests: coenological investigations of grasslands; taxonomy of Poaceae species; grasslands management
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Animal Breeding, Nutrition and Laboratory Animal Science Department, University of Veterinary Medicine Budapest, 1078 Budapest, Hungary
Interests: grassland science; biodiversity; plant ecology; conservation biology; invasive species; species diversity

Special Issue Information

Dear Colleagues,

Grasslands are among the most vital ecological systems on Earth. They not only support both plant and animal biodiversity but also provide critical ecosystem services, including hay production, grazing, erosion control, pollination, recreation, aesthetics, and carbon sequestration. However, grasslands rank among the most vulnerable ecosystems globally, as they experience the highest rates of land conversion, intensification, agricultural abandonment, and biological invasions. Due to human activities, the extent of grasslands has been steadily declining since the second half of the 20th century, while their use and the intensity of surrounding land use continue to increase.

Among the various factors affecting grasslands, climate change is one of the primary drivers of ecosystem transformation. Due to continuous utilization, the vegetation of grasslands has undergone structural changes, with plant communities shifting and potentially degrading. The species composition could also be entirely altered, necessitating conservation and restoration efforts.

In this context, this Special Issue focuses on the following key research topics, including phytosociological studies of grassland species composition, the relationships between species diversity and biomass, and grassland management, particularly mowing and grazing. Additionally, it encompasses grassland restoration outcomes, degradation processes, invasion patterns, and their link to land use, as well as the revision of grassland syntaxonomy. We also invite submissions exploring the interactions between pasture type, habitat conditions, and grazing intensity, along with other aspects of grassland ecology.

To halt biodiversity loss, it is crucial to establish a global inventory and database of grassland ecosystems, along with the identification, conservation, and restoration of key areas. Numerous publications can provide valuable data to support these efforts.

Dr. Károly Penksza
Dr. Szilárd Szentes
Guest Editors

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Keywords

  • grassland
  • grassland ecology
  • grassland ecosystem
  • vegetation
  • plant biodiversity

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Published Papers (1 paper)

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Research

12 pages, 2018 KiB  
Article
Converging Patterns of Heterotrophic Respiration Between Growing and Non-Growing Seasons in Northern Temperate Grasslands
by Caiqin Liu, Honglei Jiang and Xiali Guo
Plants 2025, 14(16), 2590; https://doi.org/10.3390/plants14162590 - 20 Aug 2025
Abstract
Temperate grasslands are highly sensitive to climate change and play a crucial role in terrestrial carbon cycling. In the context of global warming, heterotrophic respiration (Rh) has intensified, contributing significantly to atmospheric CO2 emissions. However, seasonal patterns of Rh, particularly differences between [...] Read more.
Temperate grasslands are highly sensitive to climate change and play a crucial role in terrestrial carbon cycling. In the context of global warming, heterotrophic respiration (Rh) has intensified, contributing significantly to atmospheric CO2 emissions. However, seasonal patterns of Rh, particularly differences between the growing season (GS) and non-growing season (non-GS), remain poorly quantified. This study used daily eddy covariance data from multiple flux towers combined with MODIS GPP and NPP products to estimate Rh across temperate grasslands from 2002 to 2021. We examined interannual variations in GS and non-GS Rh contributions and assessed their relationships with key hydrothermal variables. The results showed that mean Rh during GS and non-GS was 527 ± 357 and 341 ± 180 g C m−2 yr−1, respectively, accounting for 57.8 ± 14.6% and 42.2 ± 14.6% of the annual Rh. Moreover, GS Rh exhibited a declining trend, while non-GS Rh increased over time, indicating a gradual convergence in their seasonal contributions. This pattern was primarily driven by increasing drought stress in GS and warmer, moderately moist conditions in non-GS that favored microbial activity. Our findings underscore the necessity of distinguishing seasonal Rh dynamics when investigating global carbon cycle dynamics. Future earth system models should place greater emphasis on seasonal differences in soil respiration processes by explicitly incorporating the influence of soil moisture on the decomposition rate of soil organic carbon, in order to improve the accuracy of carbon release risk assessments under global change scenarios. Full article
(This article belongs to the Special Issue Coenological Investigations of Grassland Ecosystems)
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