The concept of water footprint is primarily rooted in the links between water use and water resource management vis-a-vis crop performance. Likewise, carbon footprint of a crop is an indication , how good or bad , the given crop is , with regard to adoption or mitigation of the kind of stresses the crop is exposed . These concepts are interchangeably utilised to define the production sustainability of a given crops or cropping sequence . And often , beyond the sustainability of agriculture , carbon and water footprints are used to define the type of climate change and its ultimate implications as well. In this background , i propose the following questions to our learned colleagues to share their wisdom :
* What is water footprint accounting?
* How are water footprint and nutrient density of a crop related to each other?
* How are water footprint and soil fertility related to each other ?
* What is the maximum sustainable limit of water footprint ?. What kind of relation, does it display with crop performance sustainability ?
* How does origin and characteristics of water and carbon footprints affect the sustainability of agriculture?
* What is the consequential effect(s) of changes in water footprint or carbon footprint on crop performance ?
Thanks and Regards
Carbon footprint and water footprint of a crop are inter-related. The water footprint within a geographically delineated area – be it a province, nation, catchment area or river basin – is equal to the sum of the water footprints of all processes taking place in that area. The total water footprint of humanity is equal to the sum of the water footprints of all consumers of the world, which is equal to the sum of the water footprints of all final consumer goods and services consumed annually and also equal to the sum of all water-consuming or polluting processes in the world.
Source: file:///C:/Users/Acer/Downloads/1%20(6).pdf
The present form of carbon footprints can be regarded as a hybrid that derives its name from ‘‘ecological footprint’’ but conceptually is a global warming potential indicator.
Source - http://www.aerobicrice.co.in/Shashidar_Blog_pdf/CFpaper2.pdf
basing performance, they worked as a same. otherwise they are different.
As water and carbon are essential components of life, they might be an interrelated foot-print of a crop.
from geological point of view, the importance of water footprint related to the major, minor and trace elements of the soil , which provide nutrients for plant.
Particularly where power is used for carriage and delivery of water, the water and carbon footprints are closely correlated.
Article Relationships of stable carbon isotopes, plant water potenti...
The isotopic ratio of 13C to 12C in plant tissue is less than the isotopic ratio of 13C to 12C in the atmosphere, indicating that plants discriminate against 13C during photosynthesis. Variation in discrimination against 13C during photosynthesis is due to both stomatal limitations and enzymatic processes. Theoretical and empirical studies have demonstrated that carbon isotope discrimination is highly correlated with plant water use efficiency. Analysis of carbon isotope discrimination has conceptual and practical advantages over measuring water use efficiency by instantaneous measurements of gas exchange or whole-plant harvests. Carbon isotope discrimination provides an integrated measure of water-use efficiency.
I think No direct connection, the exact calculation of CO2 and methane for carbon foot printing is still under developing stage. Fresh water intake and carbon emissions both are highly variable for particular set of living sample, and many more factors play important role in such physiological activities.
Carbon footprint and water footprint of a crop are inter-related. The water footprint within a geographically delineated area – be it a province, nation, catchment area or river basin – is equal to the sum of the water footprints of all processes taking place in that area. The total water footprint of humanity is equal to the sum of the water footprints of all consumers of the world, which is equal to the sum of the water footprints of all final consumer goods and services consumed annually and also equal to the sum of all water-consuming or polluting processes in the world.
Source: file:///C:/Users/Acer/Downloads/1%20(6).pdf
Yes, they are interrelated, infact nitrogen footprint term is also using nowadays which is also related with both carbon and water footprint
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