Use of chemical fertilizers and pesticides in frontier areas: A case study in the Northern Ecuadorian Amazon

Vasco, Cristian; Torres, Bolier; Jácome, Estefanía; Torres, Alexandra; Eche, David; Velasco, Christian

doi:10.1016/j.landusepol.2021.105490

Cited by 32 publications

(6 citation statements)

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“…The average age of the head of the household in the study area was over 50, a similar value to that of land-owning producers of small livestock species at low altitudes in Napo Province [18]. The adoption of unsustainable productive dynamics similar to those of migrant settlers was observed [38,39], which could be due to the proximity to roads and the market economy [40,41]. However, it is important to consider the results of Torres et al [18], who reported that Kichwa households involved in livestock-based livelihood strategies obtain significantly lower incomes from this activity than migrant settlers.…”

Section: Discussionmentioning

confidence: 52%

Identification and Assessment of Livestock Best Management Practices (BMPs) Using the REDD+ Approach in the Ecuadorian Amazon

et al. 2021

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Deforestation is a severe threat to diversity in the Ecuadorian Amazon Region (EAR). To mitigate deforestation, it is necessary to know the relevant stakeholders’ roles and interactions and deepen our knowledge of the local livelihoods, objectives, potentials, limitations, and “rights of being” among farms, as well as the best management practices (BMPs). In this study, our aim was to identify and assess livestock BMPs along an elevational gradient to foster sustainable production and reduce emissions from deforestation and forest degradation (REDD+). This approach could be environmentally and economically beneficial. Data were collected from 167 households along three elevational gradients, as well as from 15 interviews held among a multidisciplinary panel of key stakeholders and researchers in the EAR. The results showed that most of the Kichwa population lives in the medium zone, which features a larger agricultural and forest surface. Conversely, in the lower and upper areas, livestock predominates, where the upper area is specialized in milk production and the lower area in dual-purpose cattle (meat and dairy). The stakeholder assessment provided several key results: (a) social, structural, and technical factors have complementary effects on BMP adoption; (b) the sixteen assessed BMPs facilitated the implementation of existing financial incentive programs and enabled public–private partnerships to develop REDD+ projects. The policy implications of implementing these approaches are also discussed.

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Section: Discussionmentioning

confidence: 52%

Identification and Assessment of Livestock Best Management Practices (BMPs) Using the REDD+ Approach in the Ecuadorian Amazon

et al. 2021

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“…This LULC dynamic has been the main source of food and livelihood for rural households, a condition very similar to what happened in the Brazilian Amazon during its colonization processes [94]. At present, white, mestizo, and indigenous migrants carry out unsustainable farming practices, mainly based on conventional intensive agriculture using agrochemicals in their production systems, probably influenced by the generation of higher incomes, availability of credit, government social transfers, and land use patterns towards monocultures [95]. However, this type of intensification also brings health issues to the indigenous and migrant settler population [96] as well to ecosystem degradation [97,98].…”

Section: Land Use and Landcover Change (Lulc)mentioning

confidence: 81%

Land Use and Land Cover Changes in the Diversity and Life Zone for Uncontacted Indigenous People: Deforestation Hotspots in the Yasuní Biosphere Reserve, Ecuadorian Amazon

Heredia-R

Torres

Cabrera-Torres

et al. 2021

Forests

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Land use and land cover change (LULC) is an essential component for the monitoring environmental change and managing natural resources in areas of high natural and cultural biodiversity, such as the Amazon biome. This study was conducted in in the northern Amazon of Ecuador, specifically in the Diversity and Life Zone (DLZ) of the Yasuní Biosphere Reserve (YBR). The general aim was to investigate the territorial dynamics of land use/land cover changes to support policies for environmental and sociocultural protection in the DLZ. Specific objectives included (i) mapping LULC spatial and temporal dynamics in the DLZ in the period from 1999 to 2018, (ii) identifying sensitive LULC hotspots within the DLZ, and (iii) defining the possible policy implications for sustainable land use in the DLZ. Multitemporal satellite imagery from the Landsat series was used to map changes in LULC, which were divided into three-time stages (1999–2009, 2009–2018, 1999–2018). We adopted open-access Landsat images downloaded from the United States Geological Survey (USGS). The processes for assessing LULC in the DLZ included (1) data collection and analysis, (2) data processing for remote sensing, (3) thematic land cover, and (4) homogenization and vectorization of images. The results showed that in the period 1999–2018, most of the uses and land cover were transformed into pastures in the DLZ. Therefore, it is important to improve territorial planning, to avoid conflicts between indigenous populations, migrant settlers, and uncontacted indigenous populations that live in the DLZ, within the YBR.

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“…In terms of negative impact, different crops have different growth characteristics, and there are certain differences in the demand for agricultural chemicals. Compared with commercial crops, food crops generally have less demand for agricultural chemicals such as fertilizers, pesticides, and agricultural films [39]. Therefore, as the proportion of food crops increases, the input of agricultural factors may show a downward trend, and ACE will also decrease.…”

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confidence: 99%

Spatial-Temporal Pattern Evolution and Influencing Factors of Agricultural Carbon Emissions in the Process of Rapid Urbanization: A Case Study of the Yangtze River Delta, China

Ma¹,

Ma²,

Bo³

et al. 2022

Pol. J. Environ. Stud.

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Strengthening agricultural carbon emissions (ACE) reduction is an inherent requirement to promote the integrated development of ecological greenery in the Yangtze River Delta (YRD), and it has a significant driving effect and benchmarking significance for China to achieve carbon peaking and carbon neutrality. Based on panel data of 41 cities in the YRD from 2001 to 2019, this study reveals the spatial and temporal evolution pattern of ACE and identifies the influencing factors through methods such as CV, SDE, ESDA and SDM. The results are summarized as follows: (1) the ACE in the YRD show a fluctuating downward trend, and the gap between cities tends to widen; (2) the YRD shows emission characteristics dominated by agricultural material input, with a proportion of over 50% over the years, followed by rice cultivation and livestock breeding with the lowest proportion. In addition, Jiangsu and Anhui have higher proportions, followed by Zhejiang, and Shanghai; (3) these cities with high ACE are mainly located in the northwest regions of the YRD, and those with low ACE are mainly located in the southeast regions of the YRD. Furthermore, cities in the YRD have a positive global spatial autocorrelation, and the local spatial agglomeration pattern has strong characteristics of stability and spatial dependence; (4) the agricultural economic development level has an inverted U-shaped effect on ACE in the YRD. Meanwhile, the total rural population, total power of agricultural machinery, and urbanization level have a significant positive impact, while the agricultural planting structure and trade openness level are not significantly affected, but the rural non-farm employment level have a significantly negative impact on ACE. SDM further supports the influence of various factors, and it can be found that the agricultural economic development level and trade openness level exhibit significant negative spillover effects.

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Use of chemical fertilizers and pesticides in frontier areas: A case study in the Northern Ecuadorian Amazon

Cited by 32 publications

References 55 publications

Identification and Assessment of Livestock Best Management Practices (BMPs) Using the REDD+ Approach in the Ecuadorian Amazon

Identification and Assessment of Livestock Best Management Practices (BMPs) Using the REDD+ Approach in the Ecuadorian Amazon

Land Use and Land Cover Changes in the Diversity and Life Zone for Uncontacted Indigenous People: Deforestation Hotspots in the Yasuní Biosphere Reserve, Ecuadorian Amazon

Spatial-Temporal Pattern Evolution and Influencing Factors of Agricultural Carbon Emissions in the Process of Rapid Urbanization: A Case Study of the Yangtze River Delta, China

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