摘要:

AbstractA large portion of northwest Oklahoma is situated over the Ogallala Aquifer. Economic growth in the region has been tied closely to irrigated agriculture which depends on declining ground‐water resources in the Ogallala formation.As part of an integrated six‐State study, Oklahoma researchers developed a computer model of the agricultural sector of northwestern Oklahoma and estimated irrigated and dryland cropping patterns, farm output and farm income over a 40‐year planning horizon. Projections were made for a “baseline” situation, and the sensitivity of these results to alternative assumptions on energy costs, commodity prices and technological development was also analyzed.Preliminary results of the baseline analysis suggest a favorable outlook for irrigated agriculture in the area through the near to mid‐term, with increases in irrigated acreage, production, and returns to land and management. However, the baseline case is dependent on several relatively optimistic assumptions regarding future fuel prices, yields, and agricultural commodity prices. Even fairly large changes in fuel prices and yields are not particularly critical for model results, but if agricultural commodity prices are substantially lower than projected, the outlook for irrigated agriculture in the area is no

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01333.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

摘要:

AbstractIn river basins where aquifers are closely interrelated with a stream, large‐scale ground‐water development can lower water tables near the stream and diminish stream flows. Junior surface right holders are adversely affected. A digital computer simulation of the hydrologic‐economic system on the lower South Platte River in Colorado is employed to study economic impacts of two water management policies. Open access management is found to yield high income benefits but imposes substantial costs on surface‐water users when water supplies are limited. Incorporation of ground water into the appropriation system can help avoid the losses to surface‐water users, but greatly reduces the income of ground‐

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01334.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

摘要:

AbstractBasalts are a major source of ground water throughout the Columbia River Plateau region of the Pacific Northwest. Development and management of ground water in these basalts are complicated by the spatial variability of the hydrologic characteristics of the deep, stratified lava flows, but new irrigation developments and municipal and industrial water needs are placing increasingly larger demands on the ground‐water resource. Water management decisions are aided by individual basin studies that contribute to greater understanding of the regional ground‐water system. A distributed‐system multiple‐storage model for the Deschutes River Basin, Oregon, reveals the magnitude of spatial differences in ground‐water recharge, storage, and discharge for this watershed. Input‐output analysis elucidates the functional characteristics of the basin groundwater system, and it identifies the presence and magnitude of interbasin linkages in the ground‐water system. Implementation of ground‐water development strategies based on storage and transmission characteristics simulated by the model demonstrates that basin or regional perspectives are necessary to fully utilize ground‐water s

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01335.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01336.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01337.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01338.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01339.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01341.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01342.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY

ISSN:0017-467X    

DOI:10.1111/j.1745-6584.1982.tb01344.x

出版商:Blackwell Publishing Ltd    

年代:1982

数据来源: WILEY