عنوان

Economic and Water Supply Effects of Ending Groundwater Overdraft in California's Central Valley

Number

LA03r6s37v

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Economic and Water Supply Effects of Ending Groundwater Overdraft in California's Central Valley

General Material Designation

[Article]

First Statement of Responsibility

Nelson, Timothy; Chou, Heidi; Zikalala, Prudentia; Lund, Jay; Hui, Rui; Medellín-Azuara, Josué

Text of Note

Surface water and groundwater management are often tightly linked, even when linkage is not intended or expected. This link is especially common in semi-arid regions, such as California. This paper summarizes a modeling study on the effects of ending long-term overdraft in California's Central Valley, the state's largest aquifer system. The study focuses on economic and operational aspects, such as surface water pumping and diversions, groundwater recharge, water scarcity, and the associated operating and water scarcity costs. This analysis uses CALVIN, a hydro-economic optimization model for California's water resource system that suggests operational changes to minimize net system costs for a given set of conditions, such as ending long-term overdraft. Based on model results, ending overdraft might induce some major statewide operational changes, including large increases to Delta exports, more intensive conjunctive-use operations with increasing artificial and in-lieu recharge, and greater water scarcity for Central Valley agriculture. The statewide costs of ending roughly 1.2 maf yr^-1 of groundwater overdraft are at least

Date of Publication

2016

Title

San Francisco Estuary and Watershed Science

Volume Number

14/1

Entry Element

Nelson, Timothy; Chou, Heidi; Zikalala, Prudentia; Lund, Jay; Hui, Rui; Medellín-Azuara, Josué

Electronic name

[Article]

275578

a

Y