Browsing by Tema "Agricultural land"

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Agricultural production amidst conflict : the effects of shocks, uncertainty and governance of non-state armed actors
(2012) Maria A. Arias; Ana María Ibáñez
This paper examines the effect of conflict on agricultural production of\nsmall-farmers. We use a unique household survey applied to 4.800\nhouseholds in four micro-regions of Colombia. The survey collects\ndetailed information on households’ economic conditions, incidence of\nviolent shocks, and presence of non-state armed actors. We separate the\neffects of conflict on direct impacts, measured through conflict-induced\nshocks, and indirect impacts, measured through years of presence of nonstate\narmed actors. The results show the association between lower\nagricultural production and conflict transmits through different channels.\nIn regions with an intense conflict, yearly agricultural revenues per\nhectare and investments are lower, and households concentrate production\non seasonal crops and pasture. Presence of non-state armed actors is\nassociated with an immediate increase in production costs, lower access\nto formal financial institutions, and lower investments. The results\nsuggest that households are affected by indirect and direct impacts that\nmay induce sub-optimal agricultural decisions. Although traditional\nreconstruction efforts are crucial, post-conflict policies should also aim to\nreduce uncertainty and improve the rule of law to foster increases in\nproduction.
Análisis de transiciones sistemáticas de la cobertura y uso de la tierra en Morona Santiago, durante el periodo 2000-2018
(2025) Karol Arellano Pérez; Santiago Bonilla‐Bedoya
INTRODUCTION. The analysis of systematic transitions using specific metrics allows the identification of causal and random patterns of change between land cover and land use categories in a study area. OBJECTIVE. To analyze changes and identify the most prevalent systematic transitions in land cover and land use in the province of Morona Santiago during the period 2000-2018. METHOD. This paper employs cross-tabulation matrix analysis that, by calculating metrics such as gains, losses, exchanges, net changes and total changes, allows the identification of systematic transitions in two periods: 1) 2000-2008 and 2) 2008-2018. RESULTS. The predominant systematic transitions for both periods of analysis correspond to the loss of “Forest” to be replaced by “Agricultural Land”, and the gain of “Agricultural Land” to replace “Forest”. DISCUSSION AND CONCLUSIONS. These transitions are driven not by random exchanges but by a clear causal relationship, as shown by the classic “fishbone” pattern of deforestation, a well-documented phenomenon in the Ecuadorian Amazon, marked by shrinking forest cover and expanding agricultural land.
Attribution of river water-quality trends to agricultural land use and climate variability in New Zealand
(CSIRO Publishing, 2021) Ton H. Snelder; Caroline Fraser; Scott T. Larned; R. M. Monaghan; S. De Malmanche; Amy Whitehead
Trends at 1051 river monitoring sites across New Zealand incrementing annually for time windows of 10 and 20 years over the 28-year period ending 2017 were assessed from regular observations of six water quality variables. Between-site variation in trend strength and direction was modelled as a function of an indicator based on the Southern Oscillation Index (SOI) and the mean of and changes to catchment: (1) stocking intensity associated with pastoral livestock; and (2) area associated with plantation forest. The SOI indicator made consistent contributions to the models for the 10-year windows, but the land use indicators did not, indicating that land use signals were generally swamped by the effects of climate variability at this timescale. Some land use indicators made consistent and certain contributions to the models for the 20-year time windows. Depending on the water quality variable, some land use indicators were associated with both water quality improvement and degradation. The relationships were generally consistent with plausible explanations including changes in land use, land use intensity and land management practices. Robust attribution of water quality changes to changes to specific agricultural land uses will enable the development of precise and effective policies to achieve water quality improvement.
Land grabbing, land dispossession, land rush: what can we learn from Colombia?
(Taylor & Francis, 2025) Lorenza Arango; Julio Arias Vanegas; Saturnino M. Borras; Sergio Coronado; Isabel Díaz; D. Fajardo; Diana Ojeda; Rocío del Pilar Peña Huertas; Itayosara Rojas Herrera; Angela Serrano
What can we learn about global land grabbing from one of its hotspots: Colombia? Conversely, what can Colombia learn from global dynamics? We examine key debates by analyzing the Colombian case, showing how global and national processes affirm, complicate, and challenge views on land deals, labor, and capital. Colombia’s particular configuration of corporate power, narco-capital, and displacement expands current understandings of actors and mechanisms in land grabs. In turn, global perspectives shed light on Colombia by situating it within broader dynamics of financialization, speculative investment, and labor fragmentation.