wefnexus: Water-Energy-Food-Nutrient-Carbon Nexus Analysis for Agronomic
Systems
Provides functions for analysing
Water-Energy-Food-Nutrient-Carbon (WEFNC) nexus interactions in
agricultural production systems. Includes functions for
computing water use efficiency (WUE), water productivity (WP),
and water footprint (WF) including green, blue, and grey
components following the methodology of Hoekstra et al. (2011,
ISBN:9781849712798). Includes energy budgeting tools for energy
use efficiency (EUE), energy return on investment (EROI), net
energy (NE), and energy productivity (EP). Computes nutrient
use efficiency (NUE) metrics including agronomic efficiency
(AE), physiological efficiency (PE), recovery efficiency (RE),
and partial factor productivity (PFP) as defined by Dobermann
(2007) <https://digitalcommons.unl.edu/agronomyfacpub/316/> and
Congreves et al. (2021) <doi:10.3389/fpls.2021.637108>.
Estimates carbon footprint (CF), greenhouse gas (GHG)
emissions, soil organic carbon (SOC) stocks, and global warming
potential (GWP) using Intergovernmental Panel on Climate Change
(IPCC) Sixth Assessment Report (AR6) default values (CH4 = 27,
N2O = 273) as reported in Forster et al. (2021)
<doi:10.1017/9781009157896.009>. Computes composite
Water-Energy-Food-Nutrient-Carbon (WEFNC) nexus indices,
trade-off correlation matrices, and generates radar and heatmap
visualizations for comparing agricultural treatments. Supports
conservation agriculture (CA), irrigated and rain-fed systems,
and arid and semi-arid production environments. Methods follow
Lal (2004) <doi:10.1016/j.envint.2004.03.005> for carbon
emissions from farm operations, and Hoover et al. (2023)
<doi:10.1016/j.scitotenv.2022.160992> for water use efficiency
indicators. Version 1.1.0 adds a one-call workflow for
replicated field trials, analysis of variance with standard
error of mean (SEm), critical difference (CD) and coefficient of
variation (CV), objective indicator weights by the entropy,
CRITIC (Diakoulaki et al. (1995)
<doi:10.1016/0305-0548(94)00059-H>) and principal component
methods, TOPSIS ranking of treatments (Hwang and Yoon, 1981), and energy budgeting from physical input
quantities with an editable table of energy equivalents.
| Version: |
1.1.0 |
| Depends: |
R (≥ 4.0.0) |
| Imports: |
stats, graphics, grDevices, rlang |
| Suggests: |
ggplot2 (≥ 3.4.0), knitr, rmarkdown, testthat (≥ 3.0.0) |
| Published: |
2026-11-09 |
| DOI: |
10.32614/CRAN.package.wefnexus |
| Author: |
Lalit Kumar Rolaniya
 [aut, cre],
Hemant Poonia
[aut] (deceased),
Ram Lal Jat [aut],
Monika Punia
[aut] (deceased),
Raja Ram Choudhary [aut] |
| Maintainer: |
Lalit Kumar Rolaniya <lalitrolaniya at gmail.com> |
| BugReports: |
https://github.com/lalitrolaniya/wefnexus/issues |
| License: |
GPL (≥ 3) |
| URL: |
https://github.com/lalitrolaniya/wefnexus,
https://lalitrolaniya.github.io/wefnexus/ |
| NeedsCompilation: |
no |
| Citation: |
wefnexus citation info |
| Materials: |
README, NEWS |
| CRAN checks: |
wefnexus results |
Documentation:
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