Read on Twitter
Disappointed to see incorrect arguments being quoted here especially the inclusion of paddy!
It needs a longer explanation on why this argument is incorrect. But will post a longer post later @cseindia @sunitanar https://twitter.com/IndHydrogeology/status/1341194075299442689
It needs a longer explanation on why this argument is incorrect. But will post a longer post later @cseindia @sunitanar https://twitter.com/IndHydrogeology/status/1341194075299442689
The main issue is
1. Don't mix up blue and green water. So let's leave paddy out of this comparison because most paddy in India is irrigated and paddy is grown for food security not biomass. So let's leave paddy out for a min.
1. Don't mix up blue and green water. So let's leave paddy out of this comparison because most paddy in India is irrigated and paddy is grown for food security not biomass. So let's leave paddy out for a min.
2. The estimation of L/biomass is an old foresters argument. But this metric while relevant from an agroforestry perspective is not remotely relevant to the ban on eucs.
3.
The problem is it's very efficient at capturing all rainfall (and ALSO converting water into biomass).
So the argument against eucs is about how much water per unit area is being used.
The problem is it's very efficient at capturing all rainfall (and ALSO converting water into biomass).
So the argument against eucs is about how much water per unit area is being used.
4. Therefore there will be an impact on recharge and stream flow that large scale land use transitions from grassland or rainfed millets to eucs.
The question is do we have enough water in total on that land. Not whether eucs covert the water efficiently.
The question is do we have enough water in total on that land. Not whether eucs covert the water efficiently.
5. Now we need LOTS more primary research on ET by different species under different climatic conditions as @JagdishKrishna8 and team have done. And there is little to no money for this.
But the few studies that do exist on ET are worrying.
But the few studies that do exist on ET are worrying.
6. And Eucs don't do well in other axes like biodiversity, pollination.
So will a few eucs on the roadside be a terrible idea? I would turn the title back on @CSEINDIA but "Why Eucalyptus" -- and such a blinkered focus on L/biomass vs a holistic look at ecosystem services.
So will a few eucs on the roadside be a terrible idea? I would turn the title back on @CSEINDIA but "Why Eucalyptus" -- and such a blinkered focus on L/biomass vs a holistic look at ecosystem services.
