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Item type:Publication, Pérdida de bosques amazónicos por expansión urbana en el Perú(Pontificia Universidad Católica del Perú. Instituto de la Naturaleza, Tierra y Energía (INTE-PUCP), 2023-08-29)The occupation of peri-urban areas in the eight largest Amazonian cities is studied, along with its impact on forest conservation, in order to identify conditions associated with greater or lesser loss of peri-urban forests. For this purpose, a comparative analysis of demographic and spatial indicators is conducted, as well as a spatial analysis of recent urban growth over forested areas. Furthermore, challenges for the conservation of peri-urban forests are discussed based on key territorial dynamics and existing mechanisms for territorial planning and management. It is identified that the greater pressure from urban growth on peri-urban forests is mainly linked to migratory processes and regional economic dynamics related to mining and tourism activities. Likewise, the trend towards reduced population and housing density in new expansion areas, along with an increase in the real estate supply for secondary residences, poses a threat to sustainability. Peri-urban roads concentrate deforestation areas and future urban expansion, highlighting the need to enhance mechanisms for environmental impact assessment of road infrastructure and focus efforts on sustainable land management measures in these zones. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Reframing tropical savannization: linking changes in canopy structure to energy balance alterations that impact climate(Wiley, 2020-09-01)Abstract Tropical ecosystems are undergoing unprecedented rates of degradation from deforestation, fire, and drought disturbances. The collective effects of these disturbances threaten to shift large portions of tropical ecosystems such as Amazon forests into savanna‐like structure via tree loss, functional changes, and the emergence of fire (savannization). Changes from forest states to a more open savanna‐like structure can affect local microclimates, surface energy fluxes, and biosphere–atmosphere interactions. A predominant type of ecosystem state change is the loss of tree cover and structural complexity in disturbed forest. Although important advances have been made contrasting energy fluxes between historically distinct old‐growth forest and savanna systems, the emergence of secondary forests and savanna‐like ecosystems necessitates a reframing to consider gradients of tree structure that span forest to savanna‐like states at multiple scales. In this Innovative Viewpoint, we draw from the literature on forest–grassland continua to develop a framework to assess the consequences of tropical forest degradation on surface energy fluxes and canopy structure. We illustrate this framework for forest sites with contrasting canopy structure that ranges from simple, open, and savanna‐like to complex and closed, representative of tropical wet forest, within two climatically distinct regions in the Amazon. Using a recently developed rapid field assessment approach, we quantify differences in cover, leaf area vertical profiles, surface roughness, albedo, and energy balance partitioning between adjacent sites and compare canopy structure with adjacent old‐growth forest; more structurally simple forests displayed lower net radiation. To address forest–atmosphere feedback, we also consider the effects of canopy structure change on susceptibility to additional future disturbance. We illustrate a converse transition—recovery in structure following disturbance—measuring forest canopy structure 10 yr after the imposition of a 5‐yr drought in the ground‐breaking Seca Floresta experiment. Our approach strategically enables rapid characterization of surface properties relevant to vegetation models following degradation, and advances links between surface properties and canopy structure variables, increasingly available from remote sensing. Concluding, we hypothesize that understanding surface energy balance and microclimate change across degraded tropical forest states not only reveals critical atmospheric forcing, but also critical local‐scale feedbacks from forest sensitivity to additional climate‐linked disturbance. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Ecosyndemics: The potential synergistic health impacts of highways and dams in the Amazon(Elsevier, 2020-05-15)Ecosyndemics refer to disease interactions that result from environmental changes commonly caused by humans. In this paper, we push scholarship on ecosyndemics into new territory by using the ecosyndemic framework to compare two case studies—the Southern Interoceanic highway in Peru and the Belo Monte hydroelectric dam in Brazil—to assess the likelihood of socio-environmental factors interacting and leading to ill health in a syndemic fashion. Assessing these two case studies using an ecosyndemic perspective, we find that the construction of dams and highways in tropical forests create the conditions for increases in vector-borne illnesses, surges in sex work and sexually-transmitted infections, and increased psychological stress resulting from violence, delinquency, and the erosion of social cohesion. We suggest that these processes could interact synergistically to increase an individual's immune burden and a population's overall morbidity. However, we find differences in the impacts of the Interoceanic highway and the Belo Monte dam on food, water, and cultural systems, and observed that community and corporate-level actions may bolster health in the face of rapid socio-ecological change. Looking at the case studies together, a complex picture of vulnerability and resilience, risk and opportunity, complicates straight-forward predictions of ecosyndemic interactions resulting from these development projects but highlights the role that the ecosyndemic concept can play in informing health impact assessments and future research. We conclude by proposing a conceptual model of the potential interactions between psychological stress, vector-borne illnesses, and sexaully-transmitted infections and suggest that future investigations of synergistic interactions among these factors draw from the biological, social, and ecological sciences. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, ¿Es posible detener la deforestación en la Amazonía peruana?(Pontificia Universidad Católica del Perú. Instituto de la Naturaleza, Tierra y Energía (INTE-PUCP), 2022)There are conservatively 9.6 million deforested hectares in the Peruvian Amazon. Out of them only 1.9 million support crops and livestock produced each year. The remaining ones, that is four hectares out of every five, is underused or abandoned and partly degraded. It is also known that each hectare in agricultural production produces one-third to one-half of what it could if well-known agricultural techniques were applied. However, deforestation continues at an increasing rate, with 190,000 ha of forests destroyed in 2020. Part of the problem is lack of technical and credit assistance for producers, as well as disorderly construction of roads that encourage deforestation. However, the main obstacle is that most of the deforestation is informal and occupies lands classified as suitable for forestry that cannot be granted as property by law and in which mid- and longterm investments are not made for that reason. Therefore, legalizing ownership of around seven million deforested hectares is proposed to stop deforestation. These are already occupied and it is technically, economically, and sustainably feasible to produce crops in them, applying proven strategies such as agroforestry, permanent crops, and reforestation. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, “Climate change might have caused our small harvest”: indigenous vulnerability, livelihoods, and environmental changes in lowland and high jungle indigenous communities in Peru(Springer Science+Business Media, 2021-09-15)The purpose of this article is to analyze how indigenous livelihoods are challenged by the global phenomenon of climate change while paying particular attention to how historically shaped, non-climatic factors influence how climate change is experienced in the Peruvian Amazon. In this sense, we will address indigenous people’s lived experiences of climate variations using a theoretical framework based on concepts of vulnerability. Methodologically, we draw on both a recent literature review and fieldwork conducted during 2015 and 2016 with two Kukama Kukamiria communities in Loreto (low jungle) and three Ashaninka communities in Junín (high jungle). After describing our theoretical framework and qualitative methods, we discuss the economic history of the addressed areas and show how non-climatic factors, such as colonialism, influence these communities’ experiences. This context allows us to better understand indigenous people’s experience of seasonal variations, precipitations and climatic events, its effect on their livelihoods, and their adaptive strategies in response to challenges imposed by climate unpredictability and broader transformations in their territories. Our conclusions are twofold: (a) addressing climate change must incorporate multiple temporal and spatial scales and (b) non-climatic factors are integral to understanding the role of climate change vulnerability of indigenous population. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, One and three forests: understanding institutional diversity in Amazonian protected areas(Elsevier, 2021-12-01)We offer an ethnographic account of how forest conservation is diversely assembled at the contiguous Tambopata National Reserve and Bahuaja Sonene National Park, biodiversity hotspots in the southern Peruvian Amazon. In so doing, and revising Elinor Ostrom and collaborators' Institutional Analysis and Development (IAD) Framework, we put together a theory framework of forest institutional change, informed by assemblage perspectives. Given the context of high world society interest in the Amazon and low spatial reach of the Peruvian state, charismatic wildlife watching and scientific investigation, Brazil nuts harvest, and gold mining shape the customizing of conservation assemblages. Institutional change is the result of how Peruvian State and diverse local groups adapt, resist and reconfigure through the ongoing practices of assemblage, which are pulled by conservation and commodification forces. Responding to the IAD framework, we propose institutional diversity fundamentally means that practices of assemblage are neither uniform, nor static. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Limited state governance and institutional hybridization in alluvial ASM in Peru(Elsevier, 2021-08-01)In the Peruvian Amazon region, mining activities have contaminated land, riverbeds and shores, including in protected areas, causing serious social and environmental impacts. Against this backdrop the Peruvian state decided to implement a formalization plan to regulate small-scale mining and to eradicate mining activities in conservation areas. After years of protests, negotiations and military campaigns in the so-called war against illegal mining fought by the media and central state authorities, the formalization plan for small-scale gold mining in the Amazon has not fulfilled its stated objectives. This article explores the reasons behind the impacts of the formalization process on local governance and institutions. The author argues that the inability of the Peruvian state to effectively apply formalization regulations and laws is explained by limitations in regional governance and also the emergence of local powers which have contested state authority. In addition, the article asserts that state intervention has triggered processes of institutional hybridization which are transforming the rules for governing mining activities. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, An assessment of competing factors for fluvial incision: an example of the late Quaternary exorheic Moyobamba basin, Peruvian Subandes(Elsevier, 2021-05-01)Three competing factors for late Quaternary fluvial incision in the Moyobamba piggyback basin, located in the northeastern Peruvian Subandes, were investigated, namely base-level change as a result of basin opening, changes in the ratio sediment load:discharge (Qs: Qw) controlled by orbital and suborbital climate cyclicity, and thrust-related tectonic uplift. To assess the relative importance of these factors, the fluvial terrace staircases of five rivers were studied in terms of their sedimentology, stratigraphy and geomorphology. A new dataset of eight Optically Stimulated Luminescence (OSL) and four 14C ages shows that the final phase of endorheic alluvial fan aggradation lasted until 18.0 ± 1.4 ka, after which basin-wide incision occurred. Incision at the basin outlet as a result of adaptation to the new base level is decoupled from the observed incision in the middle and upper parts of the basin. There, incision is the result of a northwestward increase in uplift related to movements of the Cerro Blanco thrust at the western border of the Moyobamba basin. Incision was continuous from 18 ± 1.4 ka until 10.3 ± 0.7 ka without terrace formation, but between 10.3 ± 0.7 ka and 5.5 ± 0.4 ka up to four terrace levels were formed. Deposition of fluvial terrace sediments may have occurred during short periods characterised by a more intense South American Summer Monsoon (SASM) controlled by suborbital climate cyclicity, but a more precise age control is needed to confirm this theory. Precession-controlled, increased Holocene aridification between 10.3 ± 0.7 ka and 5.5 ± 0.4 ka may have resulted in a decrease in the ratio Qs: Qw leading to a five-fold increase in fluvial incision rates of up to 6.0 mm a−1 and flattening of terrace profile gradients with rates of up to 2.6 mm a−1. After 5.5 ± 0.4 ka, rates dropped again. Over longer timescales, movement of the Cerro Blanco thrust caused basin-wide uplift and fluvial incision at a more constant pace. During the past ~20 ka, incision increases from the southwest basin border towards the northwestern basin border with corresponding uplift rates increasing from 0.2−0.2+0.3 mm a−1 to 2.1−0.2+0.2 mm a−1; and with shortening rates increasing northwestward from 0.2−0.2+0.4 mm a−1 to 2.8−0.2+0.3 mm a−1. The highest, presented uplift rates are in agreement with independently published data for our study area. Our data shows that over longer timescales of ~20 ka, incision rates can be used as proxies for tectonic uplift, but over shorter timescales incision rates may be seriously affected by climate change and cannot be used to infer uplift rates. It is further suggested that continuous uplift and erosion of the Cerro Blanco thrust system, and subsequent sedimentation in the basin, in combination with increased precipitation during Heinrich events 1 and 2 and the Last Glacial Maximum (LGM), led to basin overflow. Simultaneously, river capture through headward erosion, guided by strike-slip faulting, may have led to the definitive opening up of the Moyobamba basin. To our knowledge, this is the first time that late Quaternary basin opening has been demonstrated for the South American Andes and one of the few, known cases worldwide. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Measuring incommensurability: compensations in judicial processes of oil spills in Northern Peruvian Amazon(Routledge, 2022-01-01)The increasing number of claims filed by Indigenous peoples against pollution caused by extractive industries makes the challenge of factualizing and measuring the damage caused in their territories necessary. In Peru, the Kukama Kukamiria people are among the most affected by the various spills from the North Peruvian Pipeline since its construction, one of the most well-known occurred in the lower Marañón River in 2014. This paper is about the efforts and limitations involved in aligning the Kukama Kukamiria’s experiences with the criteria and frameworks for measuring damage and compensation amid the toxic environment and the complicated time and space of late capitalism. Based on ethnographic research and considering the judicial processes, the analysis found that compensation became a tool of dispute in which incommensurable Indigenous worlds emerged to claim for their incommensurability to exist. But in the Peruvian neoliberal and extractive context, compensation also became a technique for governing Indigenous lives and natures in a way that excludes those worlds. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Cameraless photography: The sublime art of Roberto Huarcaya(University of Bologna, 2022-01-01)Este ensayo estudia los “amazogramas” de Roberto Huarcaya a partir de la categoría de lo sublime. Sostiene que nos encontramos a uno de los proyectos más interesantes en el arte latinoamericano contemporáneo. En su intento por representar lo irrepresentable, la selva se impregna en el papel alterando muchas de las convenciones clásicas del arte fotográfico. Estas imágenes son sublimes porque carecen de límites precisos y dan cuenta de una energía, una fuerza disruptiva o una especie de “materia inmaterial” que intenta capturarse como límite. Se trata de imágenes que, por un lado, regresan al origen de la tradición fotográfica y, por otro, dan testimonio con la agonía su propio lenguaje (en sus quiebres, en sus roturas, en sus contrastes, en su propia incompletud) de lo que queda de la naturaleza en el contexto una racionalidad utilitaria que ya no conoce un exterior.
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