Conceptualization, modelling and environmental impact assessment of a natural rubber techno-ecological system with nutrient, water and energy integration

Journal article


Martinez-Hernandez, E. and Hernandez, E. 2018. Conceptualization, modelling and environmental impact assessment of a natural rubber techno-ecological system with nutrient, water and energy integration. Journal of Cleaner Production. 185, pp. 707-722. https://doi.org/10.1016/j.jclepro.2018.02.297
AuthorsMartinez-Hernandez, E. and Hernandez, E.
Abstract

Simultaneous consideration of ecological and technological processes could be a systematic approach to cleaner crop production systems that preserve ecosystem states and services. Herein, we conceptualized a techno-ecological integration between a rubber plantation and latex processing. We applied a two-component framework to describe and model the resulting techno-ecological interactions to analyze the potential benefits in latex productivity and carbon capture as ecosystem services. The ecological component includes: processes in the rubber plantation affecting carbon, nitrogen, water, biomass, and latex production. The technological component includes: latex concentration process; effluent treatment and anaerobic digestion (AD) to recover water, nutrients and energy. The main synergistic interaction was through the recycling of nutrients, which allowed maintaining nutrient availability for tree growth and increase latex yield. Water recovered was recycled within the technological component to save 85% of freshwater for latex processing. Water for irrigation came from external sources. The resulting system potentially enhances carbon capture and latex production by 16% and 62%, respectively, compared to a conventional plantation (no irrigation and fertilization only in the establishment stage). In addition, our LCA based environmental assessment showed that the major global warming (GWP), acidification (AP) and eutrophication potential (EP) impacts come from nitrogen emissions in the plantation and electricity used for water irrigation and latex processing. The conceptual techno-ecological integration reduced the impacts from fertilizer input, water for processing, water treatment and heat, by 78% of GWP, 64% of AP and 79% of EP, with respect to a non-integrated system. 11.7% of the total nitrogen required throughout the plantation cycle is supplied by chemical fertilizer during establishment stage, but the GWP, EP and AP impacts from this are offset by the 88.3% coming from recycling during the productive stage. Other production systems could benefit from the approach presented herein, showing explicit modeling of interactions, integration and assessment of a techno-ecological system.

KeywordsTechno-ecological system; sustainable design; natural rubber; ecosystems modeling
Year2018
JournalJournal of Cleaner Production
Journal citation185, pp. 707-722
PublisherElsevier
ISSN0959-6526
Digital Object Identifier (DOI)https://doi.org/10.1016/j.jclepro.2018.02.297
Official URLhttps://doi.org/10.1016/j.jclepro.2018.02.297
Related URLhttps://www.researchgate.net/publication/323467217_Conceptualization_modeling_and_environmental_impact_assessment_of_a_natural_rubber_techno-ecological_system_with_nutrient_water_and_energy_integration
https://orcid.org/0000-0003-3379-0750
https://www.sciencedirect.com/science/article/pii/S0959652618306358?via%3Dihub
https://www.academia.edu/36275766/Conceptualization_modeling_and_environmental_impact_assessment_of_a_natural_rubber_techno-ecological_system_with_nutrient_water_and_energy_integration
Publication dates
Print18 Jun 2018
Online28 Feb 2018
Publication process dates
Accepted20 Feb 2018
Deposited18 Feb 2020
Output statusPublished
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https://repository.canterbury.ac.uk/item/8qv63/conceptualization-modelling-and-environmental-impact-assessment-of-a-natural-rubber-techno-ecological-system-with-nutrient-water-and-energy-integration

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