Advances in Sustainable Agriculture and Horticulture: Towards Resilient, Productive, and Ecologically Sound Food Systems

The global food system is confronted with an unprecedented convergence of challenges, including soil degradation, biodiversity loss, climate change, and the imperative to feed a growing human population whilst reducing environmental footprints. Agroecology, as an integrative science and practice, offers ecologically grounded pathways for redesigning agricultural systems to enhance resilience, sustain productivity, and minimise external input dependencies. This review synthesises the conceptual foundations, ecological principles, and empirical evidence underpinning biodiversity-based farming systems, with particular emphasis on functional biodiversity, soil ecological processes, and the ecosystem services that emerge from diversified agroecosystems. The literature reviewed in this article was identified through systematic searches of the primary academic databases Web of Science, Scopus, and Google Scholar.  Priority was given to peer-reviewed journal articles published since 2006. Drawing upon recent advances in agroecological research, the article examines how practices such as intercropping, agroforestry, cover cropping, and integrated pest management harness ecological interactions to support nutrient cycling, biological pest regulation, pollination, and carbon sequestration. Evidence from meta-analyses and long-term field trials demonstrates that diversified farming systems can sustain yields comparable to conventional agriculture whilst delivering substantially superior biodiversity and ecosystem service outcomes. The review further addresses the socio-economic dimensions of the agroecological transition and identifies critical policy, knowledge, and institutional barriers that constrain wider adoption. It concludes that biodiversity-based farming systems are not merely ecologically desirable but represent a scientifically coherent strategy for achieving long-term food security and agricultural sustainability in the context of accelerating environmental change. The scientific and policy case for accelerating the agroecological transition has never been more compelling. At a moment when the ecological foundations of global food security are under unprecedented threat, biodiversity-based farming systems represent not merely an alternative but a scientifically grounded necessity for achieving a sustainable food future.