- Author: Dan Macon
Ranching, like any other agricultural business, requires a considerable amount of planning. Unlike some farming businesses, however, ranching also requires a certain level of comfort with conditions that are beyond our control. Unexpected problems can certainly "crop" up for irrigated crop production, but we generally have some lead time to make decisions about planting or finding alternative sources of irrigation water. While I don't mean to diminish the challenges that all of us in California agriculture are facing in this incredibly dry year, I think looking down the road is different for rangeland livestock producers than for anyone else.
As I wrote last month (Yup - this is a Drought!), drought can seem like a slow-moving emergency. After a late start to our grass year in November 2020, I held out hope that we'd get something like normal precipitation in early 2021. We did not; our dry spring locked in certain parts of our forage planning process. For example, the feed that had grown by the time we shipped ewes and lambs off of our winter rangeland and back to irrigated pasture in early April was all that we'd have to work with for the rest of the year. No more rain meant no more growth.
Other parts of our annual forage calendar are less certain this year. For the first time in the 16 years I've irrigated pasture for our sheep, we're facing the potential of a mandatory reduction in our irrigation water deliveries this year. The Nevada Irrigation District, who delivers our water from the high country, is looking at the lowest carryover potential in its reservoirs in its 100 year history. Consequently, the district may end our irrigation season early, or give us less water for the full season (which typically ends on October 15). This uncertainty about our irrigated pasture compounds the ambiguity about our fall forage supply - we never know when the first germinating rain will arrive, which makes planning difficult.
For many of us who rely on annual rangeland, then, autumn is perhaps our most precarious season. Many of us try to stretch our irrigated pasture as long as we can - hoping it will last until the fall rains green-up our rangeland forages. Most of us try to manage our spring grazing to conserve dry forage for the fall - just in case the rains come late.
In our small operation, we've found that a 12-month forage calendar helps us identify future problems before they require drastic (e.g., expensive) decisions. For each of the next 12 months, we try to estimate whether we'll have adequate forage. If we think the forage will be inadequate, we try to determine why. Is it a lack of quantity (are we going to be out of feed)? Is it insufficient quality (is our forage too low in protein or energy for the stage of production we're in)? Or is it a lack of stock water? By thinking through our forage projections, we're able to think about strategies for addressing them:
- If we're going to be out of feed, do we need to think about selling some animals?
- If we have dry feed that we're trying to graze with pregnant ewes, we can supplement their protein. We start thinking about buying protein now before everyone's looking for it (and driving up the price).
- If we're worried about a lack of stock water, we start thinking about how we can get water to our sheep (so they can graze the forage we've conserved).
I wish I had a crystal ball that would tell me the exact date we'd get a germinating rain - it would make planning so much easier. Without a crystal ball, however, we can start looking down the road. We can - and should - start planning now for how we're going to get through next fall and winter. Our new Drought Decision Support Tool for Ranchers provides a framework for thinking about your forage future - check it out and please provide feedback!
Help Us Pilot-Test a New Decision-Support Tool!
By now, most of us are well aware that we're in the second year of another significant drought. A growing proportion of Northern California is classified as D4 by the U.S. Drought Monitor. And we're coming off one of the driest rainy seasons in memory. But while many producers have already started implementing drought plans, others are still considering their options. As we learned from the 2012-2016 drought, these decisions are difficult but critical to the long-term viability of our ranches.
To this end, we've created a Drought Strategies Decision Support Tool that will help producers walk through specific strategies to deal with on-the-ground conditions. This tool will guide you through developing your forage outlook for the next 12 months. It will also help you relate your reactive strategies (like weaning your calves or lambs early or selling breeding-age females) with your ranch goals and proactive drought strategies. In addition, the tool is intended to help you establish a critical date by which you will take action. Finally, we've created some simple spreadsheets (available here) to help you analyze the costs and benefits of several key strategies (like feeding hay, weaning early, or selling livestock).
During the last drought, Glenn Nader, livestock advisor emeritus for Sutter and Yuba, said, “The only way you're gonna survive a drought is to make decisions.” We hope this tool will help you do so! But we need your help! We hope you'll use this tool to hone your own drought strategies. We also hope you'll give us feedback! How can we make this tool more useful? What are we missing?
If you'd like to set up an appointment to walk through this together, please contact us (email@example.com or firstname.lastname@example.org). We're happy to go over it on the phone or schedule a ranch call. We look forward to hearing from you!
- Author: Dan Macon
If you've read my blog posts or newsletters over the last four years, you'll probably recognize that drought is a recurring theme - in my writing, in my extension programming, and in my research. Having ranched through the 2012-2015 drought, I tend to get a little nervous whenever we go through an unusual dry and/or warm stretch during our "normal" rainy season. And over the last six months, I've written about drought planning, feeding supplemental protein to utilize dry forage, and options for hauling drinking water to livestock. But all of these blog posts were written with the hope that we still had time for the rains to come - that we still had time to avoid a second consecutive dry year. Now that we're in the first week of May, I can say with more confidence (not to mention, disappointment) - we're in a drought here in the Sierra foothills.
I suppose most of us think about lack of rain or snow when we think of drought - and that's been a feature of this year's drought, to be sure. Through April 30, we've measured 18.7 inches of rainfall for the water year (since October 1, 2020). In the 20 years I've kept records here in Auburn, this is the lowest amount of precipitation I've recorded - lower, even, than the 2013-14 drought. As of May 1, we're sitting at 62 percent of average, based on my records.
But rainfall doesn't tell the whole story of this year's drought. January 2021 was the only month if this water year with above average rainfall. April, on the other hand, saw us measure just 6 percent of our average monthly precipitation. In fact, I've come to think of drought as a "climatic water deficit" - an event that combines low precipitation with higher environmental water demand, which we've also seen in the foothills this year.
The factors that drive this higher demand are numerous. Since last year was drier and warmer than normal, I suspect that we entered the current water year with very dry soils. This year's rainfall never truly re-saturated these soils, as evidenced by the lack of flow in our seasonal creeks - this is the first spring since I've lived in Auburn that I didn't see water in the ephemeral creeks where we graze our sheep. Secondly, many of the blue oaks in the lower foothills began to leaf out in late February, which increased evapotranspiration demand significantly (and earlier than normal). Finally, we've had a number of north wind events (the most recent of which created red flag fire conditions in early May) - these dry winds, and the associated low relative humidity levels, pull moisture out of vegetation and soil alike.
Local evapotranspiration data bears this out! The Auburn CIMIS (California Irrigation Management Information System) station recorded 6.0 inches of precipitation between February 1, 2021, and April 30, 2021 (similar to my data). Total evapotranspiration (water lost to evaporation or taken up by plants) during the same period was just over 12 inches. No wonder soil moisture in our rangelands was virtually nonexistent on May 1!
So what does this drought mean for us as rangeland livestock producers? In our operation, we feel reasonably confident that we'll have enough summer irrigation water to grow our typical summer forage, but I know other regions where summer water will be short. On our annual rangelands, which are critical to our fall and winter forage needs, we're seeing the feed mature at least a month earlier than normal. I suspect our peak standing crop (that is, the total amount of forage produced) will be lower than the long term average. Our fall grazing plans assume that we'll need to ration out this standing dry forage until we get a germinating rain. We'll be taking inventory of our fall forage resources in the next couple of weeks - if we look to be short of forage, we'll either look for more ground to graze or consider reducing our sheep numbers.
We'll also keep an eye on invasive weeds. The lack of late rain (so far) means less advantageous growing conditions for yellow starthistle. On the other hand, a quick visit to the UC Sierra Foothill Research and Extension Center today revealed that barbed goat grass is headed out a month earlier than usual!
We won't, however, try to feed our way out of this drought. I've run the numbers on putting the ewes on full feed if we run out of standing forage (either on our irrigated pasture or our annual rangeland). The numbers simply don't pencil, and while I hate to sell sheep, I'd hate to go broke buying hay even more. If you haven't run your own numbers, I'd be happy to sit down with you and look at options. Obviously, there are also financial and tax implications of selling livestock - these are complicated and difficult decisions.
All of this brings me to what I consider to be the key lesson I learned from the last drought. The difficult decisions we face as livestock producers can be stressful and isolating. I found it helpful in 2014 - and I find it helpful now - to talk to other producers. Partly, I think, just knowing that our friends and neighbors are dealing with similar challenges can be reassuring. More importantly, sharing ideas and approaches to coping with this drought can help us expand our own toolboxes and to see alternatives we might be missing. Next week, we'll be hosting a webinar on drought planning and federal drought programs (click here to register). I would also encourage you to join the Farmer-Rancher Drought Forum on Facebook - this closed group is open only to farmers, ranchers, and agricultural professionals - and it can be great way to share ideas, learn from others, and simply to commiserate.
Many of us are facing some difficult decisions in the months to come - and some of us have already implemented some of these difficult choices. If you have questions - or simply want to talk through some of the drought-related issues you're grappling with, feel free to contact me at email@example.com or (530) 889-7385.