Systematic Transitions in Land Use and Land Cover in a Pre-Andean Sub-Watershed With High Human Intervention in the Araucania Region, Chile

Saavedra, Pablo; Sepúlveda-Varas, Alejandra

doi:10.4067/s0718-16202016000300006

Cited by 5 publications

(5 citation statements)

References 15 publications

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“…Unexpectedly, improved pastures also decreased whereas naturalized pastures rose, as shown in Table 1. Low farm profitability, compounded by increases in prices of purchased inputs, may have led to the substitution of grazing lands for supplementary crops on the more fertile soils [57][58][59], a phenomenon also observed in other countries [60][61][62]. A parallel and significant increase of non-traditional cattle breeds such a Wagyu, Fleckvieth, and Belgian Blue, and crossbreds between these breeds took place [34,35], probably seeking higher revenues in a context of increasing input prices and competition with imported beef.…”

Section: Discussionmentioning

confidence: 99%

Trends and Drivers of Change of Pastoral Beef Production Systems in a Mediterranean-Temperate Climate Zone of Chile

Toro-Mújica

Vera

Vargas‐Bello‐Pérez

et al. 2019

Animals

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Simple Summary: Livestock production systems show modifications over time due to both internal and external variables. The relationships between internal variables allow the definition of typological groups of production systems. Knowing the typological groups and their temporal evolution allows the identification of continuity strategies at the private and public levels. With this aim and using data from livestock surveys conducted in 2009, 2011, 2013 and 2015, four typological groups of beef production in a Mediterranean-temperate climate zone of Chile were identified. The typological groups differed in size, productive orientation, breeds used, and response to changes in external variables, among other aspects. These groups require different continuity strategies, which include, their sustainable intensification and the need to focus on pastoral production using low external inputs to enhance the production of "natural" beef for high-value niche markets. Abstract:The present study used surveys of the cattle sector over the period of 2009-2015 to develop a typology of cattle farms to evaluate their evolution over time and to identify variables that may be associated with systems' adaptive changes and continuance. Four groups of farms were defined using multivariate analyses as follows: Group I are small calf-cow operations using non-specialized beef breeds; Group II is similar to Group I but employs specialized beef breeds; Group III is dedicated to finishing cattle, and Group IV are larger farms (>1000 animals) with a complete cycle of breeding and fattening. In general, beef cattle production in the temperate-Mediterranean Southern Zone of Chile is declining in response to the opening up of the economy that allows for ample imports, the high opportunity cost of land, and recurrent droughts associated with climate change. Current policies and regulations have modified farms' businesses models depending on their ease of access to markets, farm size and financial capacity. The defined groups require different development paths and strategies. Sustainable intensification is an alternative strategy for farms in Group I and II, particularly if they were to contract the finishing stage of their cattle with Group III farms. In contrast, it is suggested that Group IV farms concentrate on pastoral production using low external inputs to enhance the production of "natural" beef for high-value niche markets, with positive externalities.

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Section: Discussionmentioning

confidence: 99%

Trends and Drivers of Change of Pastoral Beef Production Systems in a Mediterranean-Temperate Climate Zone of Chile

Toro-Mújica

Vera

Vargas‐Bello‐Pérez

et al. 2019

Animals

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“…Studies analyzing the influence of land-use transitions on the variability of ecosystem valuation (EV) in mountainous areas with complex topographic characteristics can be efficiently performed using satellite land information and economic indices from existing markets [60,61]. Some authors [50,59] state that the historical detection of land-cover changes as a function of EV is still a challenging path, due to the lack of reliable and extrapolatable information on the economic value of environmental services (ESs); the scarcity of data causes complications in understanding the importance of natural resources from an economic perspective.…”

Section: Discussionmentioning

confidence: 99%

Modeling the Influence of Changes in the Edaphic Environment on the Ecosystem Valuation of the Zone of Influence of the Ozogoche and Atillo Lake Systems in Ecuador

Pazmiño,

Felipe,

Vallbé

et al. 2024

Applied Sciences

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Ecosystem valuation (EV) of soil resources is essential for understanding changes in environmental services in monetary terms. A lack of this information, which includes economic indices, hinders the optimal management of natural resources. This study evaluated the influence of changes in the edaphic ecosystem on the EV of the zone of influence of the Ozogoche and Atillo lake systems in Ecuador. The classification was carried out through spectral indices and support vector machines (SVMs), and the EV was determined through opportunity costs including environmental service provisioning and indirect use. The land use and EV classification methods were performed efficiently; the degradation trend was constant. The Modified Water Difference Index was the most efficient in the extraction of water bodies, with an accuracy of 91%. The SVMs algorithm, in recognizing coverage in general, had an overall accuracy of 85%. The adjustment made to the SVMs algorithm to improve the selection of hyperparameters was effective; a robust architecture of the algorithm in terms of automation was achieved. Between 2000 and 2020, moorland, water and wetland degraded by 19%, 2% and 3.4%, respectively. In 2000, the EV as a function of avoided CO2 content was USD 8.00 × 106; in 2010 and 2020, it was USD 6.00 × 106 and USD 5.00 × 106, respectively.

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“…Key signal of change identifies systematic transitions that deviate from random processes. These techniques are based on the approaches of Briones & Varas [ 69 ], Ewunetu et al [ 20 ], Pontius et al [ 70 ], and Alo & Pontius Jr [ 71 ]. For details of the arguments and mathematical formulations of each method and technique, please refer to S3 Appendix .…”

Section: Methodsmentioning

confidence: 99%

Multi-level determinants of land use land cover change in Tigray, Ethiopia: A mixed-effects approach using socioeconomic panel and satellite data

Habtie,

Teferi,

Guta

2024

PLoS ONE

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This study examined land use land cover change and its determinants in Tigray, Ethiopia and its livelihood zones. We used socioeconomic panel, and satellite data, and applied a mixed-effects model to analyse the factors influencing land allocation among different uses, and transition matrix to analyse land cover dynamics. The results revealed that; land use choices were influenced by plot level factors (such as plot elevation, distance, soil type and quality, and land tenure), household characteristics (such as education, dependency ratio, plot size and number owned, income, livestock and asset, perception of climate change, and access to market and main road), and community level factors (precipitation, product price, population density and livelihood zone variations). Transition matrix analysis showed that between 1986 and 2016, 12.8% of forest was converted to bare land, 6.26% bare land was converted to pasture, and 5.84% of cropland was converted to forest. However, net deforestation occurred in most of the livelihood zones. Therefore, local communities faced environmental and socio-economic challenges from capital constraints induced land fallowing, land fragmentation, and unmanaged land cover change. The study recommended sustainable land use planning and management, market linkages, improved access to roads, forestry subsidies, land tenure security, and land consolidation programs.

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Systematic Transitions in Land Use and Land Cover in a Pre-Andean Sub-Watershed With High Human Intervention in the Araucania Region, Chile

Cited by 5 publications

References 15 publications

Trends and Drivers of Change of Pastoral Beef Production Systems in a Mediterranean-Temperate Climate Zone of Chile

Trends and Drivers of Change of Pastoral Beef Production Systems in a Mediterranean-Temperate Climate Zone of Chile

Modeling the Influence of Changes in the Edaphic Environment on the Ecosystem Valuation of the Zone of Influence of the Ozogoche and Atillo Lake Systems in Ecuador

Multi-level determinants of land use land cover change in Tigray, Ethiopia: A mixed-effects approach using socioeconomic panel and satellite data

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