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  1. The role of space and time in the interaction of farmers' management decisions and bee communities
    Evidence from South India
    Erschienen: 2021
    Verlag:  Department für Agrarökonomie und Rurale Entwicklung, Universität Göttingen, Göttingen

    CONTEXT Agricultural management systems of many smallholders in low and middle-income countries depend on services by pollinator populations. However, increased adoption of modern inputs and particularly the wide-spread use of agrochemicals threaten... mehr

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    Niedersächsische Staats- und Universitätsbibliothek Göttingen
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    DS 233
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    CONTEXT Agricultural management systems of many smallholders in low and middle-income countries depend on services by pollinator populations. However, increased adoption of modern inputs and particularly the wide-spread use of agrochemicals threaten pollinators and smallholders' crop production. Understanding how farmers' use of modern inputs affects pollinator communities is, therefore, crucial for development efforts and the design and promotion of sustainable agricultural practices. OBJECTIVE We contribute to the still scarce literature on pollinator communities in low and middle-income countries by analyzing the link between the use of agrochemicals and wild bee populations in South India. Moreover, we capture temporal and spatial scaling in farm-pollinator relationships by explicitly analyzing effects of present, past, and neighboring agricultural management decisions on wild bee populations. METHODS Our empirical analysis is based on an interdisciplinary data set, combining information from pan trap experiments and a socio-economic survey of 127 agricultural plots in the rural-urban interface of Bangalore, India. We implemented a Poisson generalized linear model (GLM) to analyze factors influencing bee abundance and richness with a particular focus on the effects of farmers' management decisions. Present and past management were measured by the use of chemical fertilizers, pesticides, and irrigation in 2018 and during the previous years respectively. By setting up spatial weight matrices, we derived a proxy for neighboring management decisions and were able to estimate potential spillover effects. RESULTS AND CONCLUSION Our results suggest that agricultural intensification is associated with a decline of bee abundance and richness in our study area. Both time and space play important roles in explaining farm-bee interactions. We find statistically significant negative spillovers of pesticide use. With every addition percent of neighboring farmers using pesticides, bee abundance and richness decrease by up to 0.68 percent on the focal plot. Furthermore, smallholders' decisions to use chemical fertilizers and pesticides on their own plots significantly decrease the number of observed bees by about 20 percent. Also, every additional year of intensive past management reduces both bee abundance and richness by up to 8 percent. SIGNIFICANCE We provide new empirical evidence on farm-pollinator relationships in tropical low and middleincome countries. Based on our results, cooperative behavior among farmers and/or the regulation of agrochemical use seem to be crucial to moderate spatial spillovers of agricultural decision-making. Also, a rotation of extensive and intensive management seems to be an appropriate way to mitigate negative effects of agricultural intensification on bee populations.

     

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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/234549
    Schriftenreihe: Diskussionsbeitrag / Department für Agrarökonomie und Rurale Entwicklung ; 21, 03
    Schlagworte: Bee communities; India; pesticides; spillovers; temporal and spatial scales
    Umfang: 1 Online-Ressource (circa 47 Seiten)
  2. Digging deep and running dry
    the adoption of borewell technology in the face of climate change and urbanization
    Erschienen: August 2018
    Verlag:  Courant Research Centre, Goettingen, Germany

    In this study, we analyze the effects of household location and weather variability on the adoption of borewell technology in the rural-urban interface of Bangalore, India. Understanding these effects can help design policies that ensure... mehr

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    DS 439 (257)
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    In this study, we analyze the effects of household location and weather variability on the adoption of borewell technology in the rural-urban interface of Bangalore, India. Understanding these effects can help design policies that ensure smallholders' livelihoods and the functioning of ecosystems in drought-prone areas. Our analysis is based on a primary data set collected in 2016 and 2017 covering 574 farm households. With a semiparametric hazard rate model we analyze determinants of the borewell adoption rate. We incorporate different rainfall variables and a two-dimensional geo-spline to capture the effects of household location. Results show that more rain can lead to successful seasons that generate the capital needed for investment in borewell technology. However, we observe ad hoc adoption decisions to prevent harvest loss when rainfalls are low or missing. We also find that proximity to markets accelerates adoption rates. Further, we find that off-farm employment to decreases adoption rates.

     

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    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/181869
    Schriftenreihe: Discussion papers / Courant Research Centre ; no. 257
    Umfang: 1 Online-Ressource (circa 23 Seiten), Illustrationen
  3. Livelihood diversification and nutrition in the Indian rural-urban interface
    Erschienen: March 2024
    Verlag:  RTG 2654 Sustainable Food Systems (SustainableFood) - Georg-August University of Göttingen, Göttingen, Germany

    With growing cities and improving infrastructure all over the world, smallholder farms not only gain better access to agricultural markets but also off-farm labor markets. As a result, the opportunity cost of farm labor increases, and households'... mehr

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    DS 796
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    With growing cities and improving infrastructure all over the world, smallholder farms not only gain better access to agricultural markets but also off-farm labor markets. As a result, the opportunity cost of farm labor increases, and households' livelihood portfolios often become more complex, i.e., a share of the household labor is allocated towards off-farm activities. While such diversification is often beneficial for household incomes, the consequences for household nutrition are less clear. Especially, empirical evidence considering the interaction of different employment choices and pathways through which livelihood diversification affects nutrition is still scarce. To address this gap, we first develop a conceptual framework that considers subsistence agricultural production, commercialized agricultural operations, off-farm employment, and the role of market access in explaining household nutrition. Then, we use panel data from the rural-urban interface (RUI) of Bangalore in South India and apply a fixed-effects regression framework to analyze how employment choices affect household consumption of calories, protein, fat, saturated fat, carbohydrates, total sugar, and sodium. We also explore whether the observed effect patterns are driven by income or lifestyle changes associated with livelihood diversification. Our analysis shows that households in the RUI of Bangalore on average consume excess quantities of nutrients considered, indicating the onset of dietary transition that accompanies urbanization. Commercialized agriculture and/or off-farm employment lead to a reduction in the excess consumption of nutrients. This effect is however linked to lifestyle changes, while potential income gains further increase excess consumption. Our analysis also shows that the observed reductions in nutrient consumption through lifestyle changes vary depending on a household's location in the RUI, with households located close to Bangalore displaying stronger improvements. All in all, livelihood diversification is associated with an improvement in the household nutrient consumption status mediated by lifestyle rather than income factors associated with improved market access.

     

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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/289566
    Schriftenreihe: SustainableFood discussion papers ; no. 5
    Schlagworte: livelihood strategies; dietary transition; fixed-effects regression; rural-urban interface; India
    Umfang: 1 Online-Ressource (circa 49 Seiten)
  4. Somewhere in between towns, markets, and neighbors
    agricultural transition in the rural-urban interface of Bangalore, India
    Erschienen: August 2018
    Verlag:  Courant Research Centre, Goettingen, Germany

    This paper presents a flexible conceptual and methodological framework to model the dynamics of agricultural transition in the increasingly complex rural-urban interfaces of large cities. Our empirical analysis is based on data of a household survey... mehr

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    DS 439 (256)
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    This paper presents a flexible conceptual and methodological framework to model the dynamics of agricultural transition in the increasingly complex rural-urban interfaces of large cities. Our empirical analysis is based on data of a household survey conducted in the rural-urban interface of Bangalore, India. In our analysis we follow a polycentric perspective of urbanization and introduce a two-dimensional variable to measure its effects. Furthermore, we accommodate high input and crop diversity by applying a Structured Additive Regression (STAR) model. Our results show that satellite towns and road infrastructure are the main channels by which urbanization drives agricultural transition. Access to satellite towns appears to be more strongly associated with the modernization of smallholders’ management systems than access to the urban center of Bangalore. Our results suggest that more flexible models are necessary to understand the dynamics of agricultural transition in the surroundings of fastgrowing large towns, the kind of town expected to be dominating the urbanization trend in the coming decades.

     

    Export in Literaturverwaltung   RIS-Format
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    Volltext (kostenfrei)
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/181868
    Schriftenreihe: Discussion papers / Courant Research Centre ; no. 256
    Schlagworte: Ballungsraum; Landwirtschaft; Bodennutzungsintensität; Kleinbauern; Agglomerationseffekt; Bangalore; Indien
    Umfang: 1 Online-Ressource (circa 21 Seiten), Illustrationen