Showing posts with label consumptive water use. Show all posts
Showing posts with label consumptive water use. Show all posts

Tuesday, June 21, 2011

Energy Beets?

I see now there is a push in North Dakota on growing energy beets for ethanol production rather than corn.  The pitch:  Energy beets:  help the soil in that they use less nitrogen than corn; are tolerant to saline soils; deep rooted so they mop up nutrients escaping from shallow rooted crops; require only 1.5 gal water to produce 1 gallon of ethanol compared to corn's 2.5 gallons; produces twice the ethanol per acre than corn; and irrigated yields are 41 tons per acre.

What the article I am reading never says is how much irrigation water it takes to grow a 41-ton per acre crop.  While I can appreciate the fact that the processing water is significantly less for beets than for corn, this has never been the real issue for me as a water manager.  What is the issue is the irrigation water requirement - which for corn, is significant.  I suspect it's considerably more significant for beets, but I've looked for about an hour now and nobody's fessin' up to how much water it does take. This likely means it's a boat-load! 

I guess one could argue that even if beets take twice as much irrigation water as corn, the studies report you only need one-half the acres of beets for the same amount of ethanol produced from corn.  This could be good, right?  At least no worse!  But in the business world I'd be very surprised if the ethanol production (economic returns) won't be maximized if the land and water are available.  Besides, these guys are talking about pretty significant new acreages of beet production.  My guess is that in North Dakota water conservation is not very prominent on the radar screens of those promoting ethanol production from beets.   And this is fine - if you've got the land and water.  But, if water conservation is important, or necessary, to you, looks like it'll have to happen some other way if you jump on the beet ethanol wagon.

Monday, April 18, 2011

Supreme Court Agrees to Hear KS Case

A U.S. Supreme Court decision last week will reopen a Kansas lawsuit against Nebraska on the Republican River.  At issue is the water use by Nebraska can and has exceeded the compact  - particularly in 2005 and 2006.  Kansas is arguing that Nebraska has not done enough to reduce its water use to stay within the compact every year.  Kansas agrees the compact has been met in the last 3 years, but only because of very wet conditions and lower irrigation demand.  In 2005 and 2006 the compact was exceeded, and it will be again as soon as normal or drier conditions return.

Meanwhile, Nebraska continues to implement water conservation efforts.  One example is the use of soil moisture sensors in the Lower Republican Natural Resource District (LRNRD) where it's been reported that 300 sets of these sensors have been sold so far - through a $780,000.00 cost-share program funded by the U.S. Department of Agriculture’s Cooperative Conservation Partnership Initiative and the LRNRD. 

Soil moisture sensors can be used for several purposes.  One use is that they will tell the irrigators to stop pumping when their irrigation water gets to the bottom of the crop root zone, with the thinking that the extra water they had been applying (before the sensors) will be saved.  They can also be used to manage deficit irrigation water very accurately.  The problem is that the first use does not reduce consumptive water use while the second use will - to some degree.

In all fairness, Nebraska is implementing other conservation efforts as well - in various locations up and down the Republican River - and some of it designed to reduce consumptive water use.  I think Kansas' issue is not that nothing is being done, but that not enough real water conservation is being done compared to the possible Compact exceedences. 

In Compact compliance issues, the only relevent number is the consumptive use of the Nebraska irrigators.    Eliminating the inefficient water use = recharge (first use of soil moisture sensors) does not lessen the water being used by the crops.  The second use, will - depending on how much deficit irrigation takes place or is required.  I'm certain the Supreme Court will be aware of water conservation efforts that work for Compact compliance and those that don't.

Wednesday, September 15, 2010

2005 GMD4 Testimony on Farm Bill

Five years ago our district suggested U.S. Farm Bill changes that would actually reduce consumptive water use in specified areas at no additional cost to the federal government.  We looked at our proposal as a win-win-win situation - if implemented where, and how, we proposed it.  Following is an excerpt of that testimony:

"In discussions with irrigated producers in NW Kansas the current structure of the farm bill comes up almost every time as a significant factor in their choice of irrigated crops - very predominately corn - a high consumptive water use crop.


Since passage of the current farm bill (2002) Kansas has developed new objectives for the High Plains Aquifer which require reductions in consumptive water use. Additionally, the US Supreme Court has approved a negotiated settlement for the Republican River Compact also involving significant reductions in consumptive water use within the basin. Both are new environmental goals set relative to historical water use which are real and need to be achieved.


We would encourage the new farm program (2008) to offer producers in specially recognized or identified areas (required to achieve lower water use goals) an economically viable alternativeto produce lower consumptive water use crops on the same acres, or, to reduce their irrigated acres.


To be eligible as a recognized or identified area, the region must have as a minimum: 1) a publicly established policy, or, a court order to reduce consumptive water use; 2) regulations in place which prevent significant new water development (non-domestic); and 3) a credible process of water use reportmg.


Possible approaches, in concept, might be:

1) Restructure the farm payments in the specially recognized areas to better encourage lower consumptive water use crops.


2) In specially recognized areas provide, at the discretion of the producer, a "Conservation Option" instead of the standard program, which would encourage lower consumptive water use crops or the transition of irrigated acres.


3) Increase the loan rate per bushel for the appropriate crops if there is a reduction in irrigated acres.


We also believe any changes made must be accomplished in a way that is as "revenue neutral" to the current program as possible.


In closing, there are clearly many ways a new farm bill can be crafted to encourage lower consumptive water use in areas that must achieve new environmental goals involving less consumptive water use.  We pledge to work with USDA and others in the further development of these concepts."

Of course nothing changed, but fundamentally I still don't see why this model won't work.  Ag production is a highly economic endeavor, and unless we focus on the economics that are largely directing our water use patterns, nothing is likely to change those patterns except in very special cases - like areas being placed under a court decree or government directive.  When approached this way, these areas are seriously disadvantaged (economically) without some assistance. The Farm Bill, without any additional cost, could provide that assistance if it wanted to.  Who knows, if there were some economic supports, perhaps others would consider a local decision to reduce consumptive water use more willingly - and perhaps before the courts got involved in water management.  If there are other viewpoints out there, I'd be intrerested in hearing them.