Performance of Jatropha (Jatropha curcas L.) under Different Soil and Climatic Conditions in Kenya

Obiero, Charles; Birech, Rhoda; Malinga, J.; Ngetich, Felix K.; Freyer, Bernhard

doi:10.3923/ajar.2013.43.50

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…In the LS model, suitability is effectively limited by the least suitable parameter and it is assumed that each parameter is independent. In some cases conditions may mitigate each other, for example, jatropha is thought to be suitable in some very sandy soils as long as there are few heavy precipitation events (Obiero, Birech, Joyce, Kibet, & Freyer, 2013). The effect of CO 2 fertilization, thought to be important for C 3 crops (Allen, Baker, & Boote, 1996;Deryng et al, 2016;Nowak, 2017), is not accounted for here because it is not thought to affect suitable areas, but it could stimulate crop growth if the other requirements of the crop are sufficiently met.…”

Section: Discussionmentioning

confidence: 99%

Land suitability for energy crops under scenarios of climate change and land‐use

et al. 2020

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Bioenergy is expected to play a critical role in climate change mitigation. Most integrated assessment models assume an expansion of agricultural land for cultivation of energy crops. This study examines the suitability of land for growing a range of energy crops on areas that are not required for food production, accounting for climate change impacts and conservation requirements. A global fuzzy logic model is employed to ascertain the suitable cropping areas for a number of sugar, starch and oil crops, energy grasses and short rotation tree species that could be grown specifically for energy. Two climate change scenarios are modelled (RCP2.6 and RCP8.5), along with two scenarios representing the land which cannot be used for energy crops due to forest and biodiversity conservation, food agriculture and urban areas. Results indicate that 40% of the global area currently suitable for energy crops overlaps with food land and 31% overlaps with forested or protected areas, highlighting hotspots of potential land competition risks. Approximately 18.8 million km2 is suitable for energy crops, to some degree, and does not overlap with protected, forested, urban or food agricultural land. Under the climate change scenario RCP8.5, this increases to 19.6 million km2 by the end of the century. Broadly, climate change is projected to decrease suitable areas in southern regions and increase them in northern regions, most notably for grass crops in Russia and China, indicating that potential production areas will shift northwards which could potentially affect domestic use and trade of biomass significantly. The majority of the land which becomes suitable is in current grasslands and is just marginally or moderately suitable. This study therefore highlights the vital importance of further studies examining the carbon and ecosystem balance of this potential land‐use change, energy crop yields in sub‐optimal soil and climatic conditions and potential impacts on livelihoods.

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Section: Discussionmentioning

confidence: 99%

Land suitability for energy crops under scenarios of climate change and land‐use

et al. 2020

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“…It enables people focus on what is important to the company (Ramaa et al, 2009;Teller et al, 2011;Zhou et al, 2011) and allows introducing continuous improvement of the organization's reputation. Performance measurement system also involves the use of indicators on research, development and inno-2007; Obiero et al, 2013). In this regard, it is emphasized that optimizing fertilization, agronomic practices and genetics are the major system improvement options (Achten et al, 2010;Buainain & Batalha, 2007).…”

Section: Monitoring Systemsmentioning

confidence: 99%

Mapping Sustainable Structural Dimensions for Managing the Brazilian Biodiesel Supply Chain

Santos¹,

Borschiver²,

Souza³

2014

Journal of Technology Management & Innovation

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It has been widely discussed in Brazil that the production of biodiesel should look for ways for increasing competitiveness considering the balance among economic growth, environmental quality and social well-being through the rational use of resources. The main purpose of this paper is to identify structural dimensions influencing sustainability and competitiveness of the Brazilian biodiesel production chain and, thereby, contribute to the current debate as well as to the process of formulating policy and strategies regarding this important supply chain. As starting point, a number of publications were reviewed allowing the identification of main issues and its combination into relevant factors. Eventually, the factors were put together, resulting in a set of structural dimensions: biodiesel supply chain environment, institutional framework, market conditions, monitoring systems and technological innovation. Then, the structural dimensions were summarized in a conceptual model showing the relationship between them. The structural dimensions may be seen as critical points in which stakeholders would pay attention to ensure successful performance and sustainable competitiveness of the biodiesel production chain. The objective of the entire system is to deliver biodiesel as a clean energy with focus on social inclusion, mitigation of environmental impacts and viability.

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Performance of Jatropha (Jatropha curcas L.) under Different Soil and Climatic Conditions in Kenya

Cited by 2 publications

References 6 publications

Land suitability for energy crops under scenarios of climate change and land‐use

Land suitability for energy crops under scenarios of climate change and land‐use

Mapping Sustainable Structural Dimensions for Managing the Brazilian Biodiesel Supply Chain

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