Shadow price of water for irrigation—A case of the High Plains

Ziolkowska, Jadwiga R.

doi:10.1016/j.agwat.2015.01.024

Cited by 67 publications

(30 citation statements)

References 17 publications

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“…The Texas High Plains (THP) is a highly productive maize area under irrigation (Howell 2001;Farfan et al 2013;Xue et al 2017). However, the irrigation source, Ogallala Aquifer, continues to decline and threatens the sustainable maize production in the area (Scanlon et al 2010;Ziolkowska 2015). Several recent studies have shown a yield benefit in DT hybrids under limited irrigation.…”

Section: Introductionmentioning

confidence: 99%

Yield determination of maize hybrids under limited irrigation

Zhao

Xue

Hao

et al. 2019

Journal of Crop Improvement

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Hybrid adoption, irrigation, and planting density are important factors for maize (Zea mays L.) production in semiarid regions. For this study, a 2-yr field experiment was conducted in the Texas High Plains to investigate maize yield determination, seasonal evapotranspiration (ETc), and water-use efficiency (WUE) under limited irrigation. Two hybrids (N74R, a conventional hybrid, and N75H, a drought-tolerant (DT) hybrid) were planted at three water regimes (I 100 , I 75 , and I 50 , referring to 100%, 75%, and 50% of the evapotranspiration requirement) and three planting densities (PD 6, PD 8, and PD 10, referring to 6, 8, and 10 seeds m −2 ). At I 50 , drought stress reduced grain yield by 4.78 t/ha for the conventional hybrid but only 4.22 t/ha for the DT hybrid, when compared to I 100 . Although ETc decreased at I 75 and I 50 , the highest WUE was found at I 75 . The DT hybrid did not yield more than the conventional hybrid but had greater yield stability at lower water regimes and extracted less soil water. Drought decreased biomass, harvest index, and kernel weight but did not affect kernel number. Higher planting densities increased biomass and kernel number but decreased kernel weight. Kernel number and kernel weight of the conventional hybrid were more sensitive to planting density than the DT hybrid. These data demonstrated that limited irrigation at I 75 is an effective way to save water and maintain the maize yield in semiarid areas, and that DT hybrid shows a greater yield stability to plant density under water stress. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

Yield determination of maize hybrids under limited irrigation

Zhao

Xue

Hao

et al. 2019

Journal of Crop Improvement

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“…Nearly one-fifth of all U.S. wheat, corn, cotton, and cattle production and 30% of all cropland irrigation is supported by this extensive aquifer system underlying eight states [70]. However, the groundwater of this vital system is being depleted at unsustainable rates [1,2,4,5], threatening the agricultural economy throughout not only the region, but also the nation as a whole.…”

Section: Discussionmentioning

confidence: 99%

“…At the current rate of depletion, 35% of the Southern High Plains will be unable to support irrigation for agriculture within the next thirty years [2] (p. 9321). Given the extensive socio-economic implications of groundwater depletion, research that evaluates current groundwater governance policies and explores possible consequences of those policies is expansive [1,[3][4][5]. More so, how these consequences contribute to community and agricultural vulnerability, has also lead to increasing research on vulnerability, resilience and the role of water governance and politics on sustainable groundwater use [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Groundwater Governance and the Growth of Center Pivot Irrigation in Cimarron County, OK and Union County, NM: Implications for Community Vulnerability to Drought

Wenger

Vadjunec

Fagin

2017

Water

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Cimarron County, Oklahoma and Union County, New Mexico, neighboring counties in the Southern High Plains, are part of a vital agricultural region in the United States. This region experiences extended periods of cyclical drought threatening its ability to produce, creating an incentive for extensive center pivot irrigation (CPI). Center pivots draw from the rapidly depleting High Plains Aquifer System. As a result, the prospect of long-term sustainability for these agricultural communities is questionable. We use Remote Sensing and Geographic Information Systems to quantify growth in land irrigated by CPI between the 1950s and 2014, and key informant interviews to explore local perspectives on the causes and impact of such growth. In Cimarron County, OK, CPI increased by the mid-1980s, and has continually increased since. Results suggest adaptation to drought, a depleting aquifer, high corn prices, and less rigid groundwater regulations contribute to CPI growth. Conversely, CPI in Union County, NM, increased until 2010, and then declined. Results also suggest that drought-related agricultural changes and more aggressive well drilling regulations contribute to this decrease. Nevertheless, in both counties, there is a growing concern over the depleting aquifer, the long-term sustainability of CPI, and the region's economic future.

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“…As a result, well permitting, water reporting, and monitoring requirements differ (Table 2). Beginning in the 1940s, the total irrigated acreage drawing from the HPA rapidly increased [54,64] leading to unsustainable depletion of this resource [65,66]. In areas where it was allowed, many farmers added CPI to ameliorate semi-arid conditions [54].…”

Section: Land and Water Governance And Human Actions In The Southern mentioning

confidence: 99%

A Land Systems Science Framework for Bridging Land System Architecture and Landscape Ecology: A Case Study from the Southern High Plains

Vadjunec

Frazier

Kedron

et al. 2018

Land

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Abstract:Resource-use decisions affect the ecological and human components of the coupled human and natural system (CHANS), but a critique of some frameworks is that they do not address the complexity and tradeoffs within and between the two systems. Land system architecture (LA) was suggested to account for these tradeoffs at multiple levels/scales. LA and landscape ecology (LE) focus on landscape structure (i.e., composition and configuration of land-use and land-cover change [LULCC]) and the processes (social-ecological) resulting from and shaping LULCC. Drawing on mixed-methods research in the Southern Great Plains, we develop a framework that incorporates LA, LE, and governance theory. Public land and water are commons resources threatened by overuse, degradation, and climate change. Resource use is exacerbated by public land and water policies at the state-and local-levels. Our framework provides a foundation for investigating the mechanisms of land systems science (LSS) couplings across multiple levels/scales to understand how and why governance impacts human LULCC decisions (LA) and how those LULCC patterns influence, and are influenced by, the underlying ecological processes (LE). This framework provides a mechanism for investigating the feedbacks between and among the different system components in a CHANS that subsequently impact future human design decisions.

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Shadow price of water for irrigation—A case of the High Plains

Cited by 67 publications

References 17 publications

Yield determination of maize hybrids under limited irrigation

Yield determination of maize hybrids under limited irrigation

Groundwater Governance and the Growth of Center Pivot Irrigation in Cimarron County, OK and Union County, NM: Implications for Community Vulnerability to Drought

A Land Systems Science Framework for Bridging Land System Architecture and Landscape Ecology: A Case Study from the Southern High Plains

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