Grazing Management and Carbon Dynamics in Grassland Ecosystems: From Microbial Processes to Ecosystem Functioning

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Grassland and Pasture Science".

Deadline for manuscript submissions: 31 May 2026 | Viewed by 306

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Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Interests: grassland ecosystem observation, simulation and management
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Special Issue Information

Dear Colleagues, 

Grassland ecosystems play a critical role in global carbon cycling, acting as significant carbon sinks while supporting livestock production and biodiversity. However, the interplay between grazing practices and carbon dynamics remains complex, influenced by microbial activity, soil processes, and ecosystem-level feedbacks. This Special Issue will explore how grazing management strategies—such as rotational grazing, intensity regulation, and rest periods—modulate carbon sequestration, soil organic matter stability, and microbial-mediated nutrient cycling in grasslands. We welcome studies that integrate field experiments, molecular techniques (e.g., metagenomics), and ecological modeling to elucidate mechanisms linking grazing practices to carbon fluxes. Topics include, but are not limited to, the following: (1) microbial community responses to grazing and their role in carbon decomposition and stabilization; (2) impacts of grazing on soil physicochemical properties and greenhouse gas emissions; (3) scaling from plant–soil interactions to ecosystem carbon balance; and (4) innovative grazing management frameworks for enhancing grassland carbon sinks. By bridging fundamental research and practical applications, this Special Issue aims to advance sustainable grassland management in the context of climate change mitigation.

Prof. Dr. Xiaoping Xin
Guest Editor

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Keywords

  • carbon sequestration
  • plant–soil–microbe interactions
  • root exudates
  • microbial ecology
  • metabolic quotient
  • rotational grazing
  • grassland sustainability
  • pasture resilience
  • ecosystem functioning

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Published Papers (1 paper)

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Research

17 pages, 11943 KB  
Article
Soil Fertility Assessment and Spatial Heterogeneity of the Natural Grasslands in the Tibetan Plateau Using a Novel Index
by Xizhen Zhang, Kun Zhang, Kun Zhang, Changliang Shao, Aiwu Zhang, Youliang Chen and Lulu Hou
Agronomy 2025, 15(12), 2743; https://doi.org/10.3390/agronomy15122743 - 28 Nov 2025
Viewed by 216
Abstract
As the most extensive terrestrial ecosystem, grassland exhibits substantial ecological functions and scientific research significance. Conducting a scientific assessment of the soil fertility of grasslands is of paramount importance for attaining sustainable grassland management, especially for the Tibetan Plateau, which has the most [...] Read more.
As the most extensive terrestrial ecosystem, grassland exhibits substantial ecological functions and scientific research significance. Conducting a scientific assessment of the soil fertility of grasslands is of paramount importance for attaining sustainable grassland management, especially for the Tibetan Plateau, which has the most vulnerable ecosystem. This study endeavors to evaluate the soil fertility and spatial differentiation patterns of the natural grasslands in the Tibetan Plateau. Initially, we developed a Soil Fertility Evaluation Index (SFEI) for natural grasslands by integrating three representative soil indicators (total nitrogen, soil organic matter, and bulk density) and a vegetation indicator (fractional vegetation cover). The selection of these indicators followed the Minimum Data Set (MDS) principle, ensuring both ecological relevance and consistent data availability across all sampling plots in the Tibetan Plateau. Subsequently, validation based on field sampling data showed an overall accuracy of 69.89%. Moreover, the evaluation result revealed a clear eastward-increasing gradient in soil fertility, with low fertility in the western regions (e.g., Ngari and Nagqu) and medium-to-high fertility in the central and eastern regions (e.g., Lhasa, Yushu, and Golog), consistent with regional hydrothermal patterns. The proposed method offers a novel and practical framework for assessing soil fertility of natural grassland in the Tibetan Plateau, with significant implications for differentiated grassland management and ecological restoration. Full article
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