Jaiswal Deepa, Pandey Usha, Mishra Vibha, Pandey Jitendra
Ganga River Ecology Research Laboratory, Environmental Science Division, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, India.
Department of Botany, Faculty of Science and Technology, Mahatma Gandhi Kashividyapith University, Varanasi, India.
Glob Chang Biol. 2021 Aug;27(16):3699-3717. doi: 10.1111/gcb.15662. Epub 2021 May 18.
Moving beyond monitoring the state of water quality to understanding how the sensitive ecosystems "respond" to complex interplay of climatic and anthropogenic perturbations, and eventually the mechanisms that underpin alterations leading to transitional shifts is crucial for managing freshwater resources. The multiple disturbance dynamics-a single disturbance as opposed to multiple disturbances for recovery and other atrocities-alter aquatic ecosystem in multiple ways, yet the global models lack representation of key processes and feedbacks, impeding potential management decisions. Here, the procedure we have embarked for what is known about the biogeochemical and ecological functions in freshwaters in context of ecosystem resilience, feedbacks, stressors synergies, and compensatory dynamics, is highly relevant for process-based ecosystem models and for developing a novel paradigm toward potential management decisions. This review advocates the need for a more aggressive approach with improved understanding of changes in key ecosystem processes and mechanistic links thereof, regulating resilience and compensatory dynamics concordant with climate and anthropogenic perturbations across a wide range of spatio-temporal scales. This has relevance contexting climate change and anthropogenic pressures for developing proactive and adaptive management strategies for safeguarding freshwater resources and services they provide.
从监测水质状况进一步深入到理解敏感生态系统如何“响应”气候和人为扰动的复杂相互作用,以及最终支撑导致过渡性转变的变化的机制,对于管理淡水资源至关重要。多重干扰动态(与用于恢复及其他暴行的单一干扰相对)以多种方式改变水生生态系统,但全球模型缺乏对关键过程和反馈的呈现,这阻碍了潜在的管理决策。在此,我们着手的程序涉及在生态系统恢复力、反馈、压力源协同作用和补偿动态的背景下了解淡水的生物地球化学和生态功能,这对于基于过程的生态系统模型以及朝着潜在管理决策发展新范式高度相关。本综述主张需要采取更积极的方法,更好地理解关键生态系统过程的变化及其机制联系,在广泛的时空尺度上调节与气候和人为扰动相一致的恢复力和补偿动态。这对于结合气候变化和人为压力来制定保护淡水资源及其提供的服务的主动和适应性管理策略具有重要意义。