From Drought to El Niño, California s Water Odyssey

Transcription

1 From Drought to El Niño, California s Water Odyssey Doug Parker Director, California Institute for Water Resources Strategic Initiative Leader, UC ANR Water Initiative doug.parker@ucop.edu

2 Introduction California Water Supply California Water Use El Niño vs. Drought California s Response Solutions Changing the Conversation Outline

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4 Variation in Annual Precipitation Source: Dettinger et al (2011

5 California Water Plan Update 2013

6 California s Water Sources Other 1% Groundwater 31% Local Projects 27% State Water Project 8% Colorado River 13% Federal Projects 20% California Legislative Analyst's Office, September 8, 1999

7 California Water Plan Update 2013

8 Colorado River Basin- MAP- CRBC- Chris Harris.jpg

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10 Groundwater Levels

11 Groundwater Basin Prioritization California Water Plan Update 2013

12 California Dedicated Water Uses California Water Plan Update 2013

13 California Agriculture Facts 80,000 + farms $46+ billion industry 26 million acres of agricultural lands 13 million acres pasture and rangeland 9.5 million acres of irrigated cropland 6 million acres annuals 3 million acres orchards/vineyards

14 California Agriculture #1 US producer of 78 commodities Only US producer of 14 commodities (99% or greater) Almonds Kiwifruit Pomegranates Artichokes Olives Rice, Sweet Dates Peaches, Clingstone Seed, Ladino Clover Figs Pistachios Walnuts Grapes, Raisin Plums, Dried Source: USDA, NASS, California Agricultural Statistics, 2011 Crop Year.

15 El Niño or Continued Drought? Rain, Rain, Rain? Ecosystem Response Surface Water Response Groundwater Response Current Conditions

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18 The Importance of Large Storm Events Dettinger et al, Water, 2011

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21 Severity of California Drought Worst 4 consecutive years in 1,200 years Worst snowpack in 500 years Over 2,000 wells gone dry Severe areas of subsidence

22 Impacts to California Fallow crop land Import feed for livestock and dairy Cull herds Increase wildfire Impact ecosystem health Impact ecosystem restoration efforts Residential and urban water demand 2015 Impact $2.7 billion 8.7 MAF Surface Water Loss 21,000 Lost Jobs 6.0 MAF Increase GW 500,000 Acres 2.7 MAF Net Water Loss

23 UC Response to Drought: Long-term Drought not new to California 135+ years of research and outreach Irrigation efficiency/management Crop Breeding/Health Rangeland management Managed Aquifer Recharge Recycling/reuse Desalination Master Gardener Stormwater capture and recharge Real-time monitoring stream and snowpack

24 Current Drought Resources Web: ucanr.edu/drought for up-to-date resources for daily updates

25 UC Drought Tips Drought Management Tip Sheets Annual and Permanent Crops Livestock Irrigation Management Alternative Water Sources Urban Landscape Management

26 UC Drought Response: Online Seminar Series New online seminar series with experts from around the state, support from state department of water resources ucanr.edu/insights

27 UC Drought Events Veterinarian Dr. Nancy Martin talks with ranchers about how to help their herds survive drought at a UC ANR workshop in Browns Valley in January. Over 150 events with over 10,000 attendees. Many events with video capture now on the web. More events scheduled with more to come

28 Searching For Solutions Desalination Waste Water Reuse Surface Storage Groundwater Storage Reallocation Water Use Efficiency/Conservation

29 Desalination San Diego Santa Barbara Santa Cruz The San Diego County Water Authority

30 Greywater Purple Pipe Potable Reuse Waste Water Reuse

31 Surface Storage 43 MAF Surface Water Storage On-Stream and Off-Stream Options You Can t Store What You Don t Have

32 Groundwater Storage Managed Aquifer Recharge Use Agricultural Lands to Recharge Groundwater in Wet Events Bank Water for Drought Years Potential for Use on Many Crops Concerns for Groundwater Quality Dahlke, et. al., 2014

33 Reallocation of Water Rights Agricultural Water Rights Urban Water Rights Environmental Water Allocations

34 Water Use Efficiency: Agriculture Processing Tomatoes 54% Increase in Efficiency Almonds 33% Increase in Efficiency Not Necessarily A Water Savings Return Flows and Percolation Changes in Acreage Change in Yield AF/Acre vs. AF/Tons Output

35 The Fallacy of the Solutions Mindset Problem: Supply Demand Solution: Supply = Demand solution noun so lu tion \sə-ˈlü-shən\ something that is used or done to deal with and end a problem something that solves a problem the act of solving something

36 The Fallacy of the Solutions Mindset Challenge #1: California is land rich but water poor

37 Changing the Conversation Fundamental Paradox Enough will never be enough

38 The Fallacy of the Solutions Mindset Challenge #2: Efficiency vs. Storage Efficiency Storage Versus Efficiency Storage

39 Changing the Conversation Fundamental Paradox S W =D W t Enough will never be enough

40 Thank You Web: ucanr.edu/drought