干旱区生态环境知识资源中心(Arid): Economic and energetic analysis of cactus pear biomass production systems with increasing levels of technological intensity

Arid

DOI	10.1016/j.indcrop.2023.117883
	Economic and energetic analysis of cactus pear biomass production systems with increasing levels of technological intensity
	da Silva, Jessica Barbara; Santos Junior, Edvaldo Pereira; Siqueira e Silva, Servulo Mercier; Maciel, Vinicius Goncalves; Sales, Aldo Torres; Sampaio, Everardo Valadares de Sa Barreto; Rotela Junior, Paulo; Coelho Junior, Luiz Moreira; Dubeux Jr, Jose Carlos B.; Menezes, Romulo Simoes Cezar; Dutra, Emmanuel Damilano
通讯作者	Dutra, ED
来源期刊	INDUSTRIAL CROPS AND PRODUCTS
ISSN	0926-6690
EISSN	1872-633X
出版年	2024
卷号	208
英文摘要	The forecasted expansion of arid and semi-arid lands worldwide due to climate changes requires alternatives for economically viable agricultural cropping systems to produce biomass for food and energy purposes under water-limited environments and with low emissions of greenhouse gases (GHG). The cultivation of cactus pear (Opuntia cochenillifera) may be a viable alternative for biomass production in water-limited environments, to be used as animal fodder, or for energy purposes. Usually, cactus pear is cultivated using low technological inputs, such as mechanization and fertilization, but a growing number of farmers have been adopting management practices with greater inputs. Thus, the study aims to analyze the economic and energetic viability of the biomass pro-duction of cactus pear biomass production systems with increasing levels of technological inputs in the semiarid region of northeast (NE) Brazil. The research was carried out with primary data covering seven states in NE Brazil, under three levels of cropping system technological intensity: A) low; B) medium; and C) high techno-logical intensity, based on the different inputs of mechanization, fertilization, irrigation, and other variables. A semi-structured questionnaire was applied to 54 farmers to collect data about crop management practices and biomass productivity of cactus pear production systems. Energy balances were carried out using the energy return on investment (EROI) method, and the economic analysis used a deterministic approach based on the criteria of Net Present Value (NPV), Internal Rate of Return, and Discounted Payback. The risk was analyzed through sensitivity and stochastic Monte Carlo simulation analysis. System A had the lowest energy expenditure and biomass productivity, resulting in an EROI of 4.42, and the lowest NPV return, with a 94.7% probability of economic viability. System B had an EROI of 3.60, therefore, the lowest economic viability (90.1%). System C stood out with the highest energy expenditure and biomass productivity, resulting in the highest EROI (5.26), economic return, and probability of viability (99.4%). Energy return of high intensity systems reached maximum values when chemical fertilization and irrigation were included (EROI of 6.14). Therefore, the high-intensity production system proved to be the most economically and energetically efficient and the most viable alterna -tive for large-scale biomass production, regardless of the use of biomass for animal feed (fodder) or the pro-duction of biofuels. However, less productive, low-intensity systems are also energetically and economically viable and are easily accessible to small rural producers, which is an important result that supports the use of this crop in regions prone to desertification. The study contributes to the development of sustainable practices in the production of biomass in the semiarid region of Brazil and offers policymakers and stakeholders in the energy sector novel and useful information about the potential of cactus biomass as a renewable feedstock for biofuel production in the Brazilian semiarid region and other dry regions around the globe.
英文关键词	Bioenergy Biofuels in dry lands Energy efficiency economic feasibility EROI
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001137977700001
WOS关键词	LARGE-SCALE FARM ; FORAGE CACTUS ; BIOGAS PRODUCTION ; NOPAL CLADODES ; USE EFFICIENCY ; BIOENERGY ; BALANCE ; CROPS ; YIELD ; DAIRY
WOS类目	Agricultural Engineering ; Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404169
推荐引用方式 GB/T 7714	da Silva, Jessica Barbara,Santos Junior, Edvaldo Pereira,Siqueira e Silva, Servulo Mercier,et al. Economic and energetic analysis of cactus pear biomass production systems with increasing levels of technological intensity[J],2024,208.
APA	da Silva, Jessica Barbara.,Santos Junior, Edvaldo Pereira.,Siqueira e Silva, Servulo Mercier.,Maciel, Vinicius Goncalves.,Sales, Aldo Torres.,...&Dutra, Emmanuel Damilano.(2024).Economic and energetic analysis of cactus pear biomass production systems with increasing levels of technological intensity.INDUSTRIAL CROPS AND PRODUCTS,208.
MLA	da Silva, Jessica Barbara,et al."Economic and energetic analysis of cactus pear biomass production systems with increasing levels of technological intensity".INDUSTRIAL CROPS AND PRODUCTS 208(2024).