Land reform, agricultural resilience and food security under systemic shock: evidence from Africa

Introduction Land reform remains contentious in Southern Africa, where the implications of redistribution for productivity, food security and resilience depend on complementary resources and institutions. This study examines African agriculture and Zimbabwe's post-land-reform system during COVID-19 as a systemic stress test. Methods A sequential explanatory mixed-methods design integrated a 2000–2022 panel covering 54 African countries with a thematic synthesis of 13 documents representing 11 evidence families relevant to Zimbabwe. Segmented panel models, two-way fixed-effects specifications, dynamic models, interaction tests, country-placebo analyses and robustness checks examined agricultural value added per worker, cereal yield and undernourishment. Documentary themes were integrated with panel findings through a joint display. Results Pandemic-period associations with productivity and cereal yield were not consistently negative. Undernourishment estimates were suggestive but sensitive to model specification, covariance estimation and pre-existing trends. Zimbabwe's estimated trajectories differed significantly from broader African patterns, but its estimates were not exceptional within country-placebo distributions. Joint tests did not support moderation by inflation or irrigation. Documentary evidence identified labor, input, financial, logistical, market and institutional disruptions, alongside adaptation supported by favorable rainfall, input programs, extension services and infrastructure. Production continuity coexisted with impaired food access, heightened vulnerability and incomplete recovery. Discussion The findings are consistent with the Land Reform–Knowledge–Resilience Framework, suggesting that productive opportunities following redistribution depend on knowledge, finance, infrastructure, markets, institutions and macroeconomic stability. Production continuity alone does not establish resilience. The integrated evidence supports interpretation of plausible mechanisms without establishing causal effects of COVID-19 or land reform.