He Shuyu, Xiong Kangning, Song Shuzhen, Chi Yongkuan, Fang Jinzhong, He Chen
School of Karst Science, Guizhou Normal University, Guiyang 550001, China.
State Engineering Technology Institute for Karst Desertification Control of China, 116 Baoshan North Road, Guiyang 550001, China.
Plants (Basel). 2023 Feb 8;12(4):770. doi: 10.3390/plants12040770.
The structure and stability of grassland ecosystems have a significant impact on biodiversity, material cycling and productivity for ecosystem services. However, the issue of the structure and stability of grassland ecosystems has not been systematically reviewed. Based on the Web of Science (WOS) and China National Knowledge Infrastructure (CNKI) databases, we used the systematic-review method and screened 133 papers to describe and analyze the frontiers of research into the structure and stability of grassland ecosystems. The research results showed that: (1) The number of articles about the structure and stability of grassland ecosystems is gradually increasing, and the research themes are becoming increasingly diverse. (2) There is a high degree of consistency between the study area and the spatial distribution of grassland. (3) Based on the changes in ecosystem patterns and their interrelationships with ecosystem processes, we reviewed the research progress and landmark results on the structure, stability, structure-stability relationship and their influencing factors of grassland ecosystems; among them, the study of structure is the main research focus (51.12%), followed by the study of the influencing factors of structure and stability (37.57%). (4) Key scientific questions on structural optimization, stability enhancement and harmonizing the relationship between structure and stability are explored. (5) Based on the background of karst desertification control (KDC) and its geographical characteristics, three insights are proposed to optimize the spatial allocation, enhance the stability of grassland for rocky desertification control and coordinate the regulation mechanism of grassland structure and stability. This study provided some references for grassland managers and relevant policy makers to optimize the structure and enhance the stability of grassland ecosystems. It also provided important insights to enhance the service capacity of grassland ecosystems in KDC.
草原生态系统的结构与稳定性对生物多样性、物质循环以及生态系统服务的生产力有着重大影响。然而，草原生态系统的结构与稳定性问题尚未得到系统的综述。基于科学网（WOS）和中国知网（CNKI）数据库，我们采用系统综述方法，筛选了133篇论文来描述和分析草原生态系统结构与稳定性的研究前沿。研究结果表明：（1）关于草原生态系统结构与稳定性的文章数量逐渐增加，研究主题日益多样。（2）研究区域与草原的空间分布高度一致。（3）基于生态系统格局的变化及其与生态系统过程的相互关系，我们综述了草原生态系统结构、稳定性、结构 - 稳定性关系及其影响因素的研究进展和标志性成果；其中，结构研究是主要研究重点（51.12%），其次是结构和稳定性影响因素的研究（37.57%）。（4）探讨了结构优化、稳定性增强以及协调结构与稳定性关系的关键科学问题。（5）基于石漠化治理（KDC）背景及其地理特征，提出了三点见解，以优化空间配置、增强石漠化治理草原的稳定性并协调草原结构与稳定性的调控机制。本研究为草原管理者和相关政策制定者优化草原生态系统结构、增强稳定性提供了参考。同时也为提升石漠化治理中草原生态系统的服务能力提供了重要见解。
