Simulating diverse native C4 perennial grasses with varying rainfall

Kim, Sumin; Williams, Amber; Kiniry, James R.; Hawkes, Christine V.

doi:10.1016/j.jaridenv.2016.07.004

Title: Simulating diverse native C4 perennial grasses with varying rainfall

Abstract

Rainfall is recognized as a major factor affecting the rate of plant growth development. The impact of changes in amount and variability of rainfall on growth and production of different forage grasses needs to be quantified to determine how climate change can impact rangelands. Comparative studies to evaluate the growth of several perennial forage species at different rainfall rates will provide useful information by identifying forage management strategies under various rainfall scenarios. In this study, the combination of rainfall changes and soil types on the plant growth of 10 perennial forage species was investigated with both the experimental methods, using rainout shelters, and with the numerical methods using the plant growth simulation model, ALMANAC. Overall, most species significantly increased basal diameter and height as rainfall increased. Like measured volume, simulated yields for all species generally increased as rainfall increased. But, large volume and yield increases were only observed between 350 and 850 mm/yr. Simulating all species growing together competing agrees relatively well with observed plant volumes at low rainfall treatment, while simulating all species growing separately was slightly biased towards overestimation on low rainfall effect. Here, both simulations agree relatively well with observed plant volume at high rainfall treatment.

Authors:

;

; Kiniry, James R.; Hawkes, Christine V.

Publication Date:: Tue Nov 01 00:00:00 EDT 2016

Research Org.:: Oak Ridge Inst. for Science and Education (ORISE), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1279013

Alternate Identifier(s):: OSTI ID: 1494694

Grant/Contract Number:: #08-SC-NICCR-1071; #60-3098-5-006; 08-SC-NICCR-1071; 60-3098-5-006; 60-3098-5-002

Resource Type:: Published Article

Journal Name:: Journal of Arid Environments

Additional Journal Information:: Journal Name: Journal of Arid Environments Journal Volume: 134 Journal Issue: C; Journal ID: ISSN 0140-1963

Publisher:: Elsevier

Country of Publication:: United Kingdom

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; Forage; Rainfall; ALMANAC; Plant growth; Perennial grass

Citation Formats


                    Kim, Sumin, Williams, Amber, Kiniry, James R., and Hawkes, Christine V. Simulating diverse native C4 perennial grasses with varying rainfall.  United Kingdom: N. p., 2016. 
Web.  doi:10.1016/j.jaridenv.2016.07.004.

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                    Kim, Sumin, Williams, Amber, Kiniry, James R., & Hawkes, Christine V. Simulating diverse native C4 perennial grasses with varying rainfall.  United Kingdom.  https://doi.org/10.1016/j.jaridenv.2016.07.004

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                    Kim, Sumin, Williams, Amber, Kiniry, James R., and Hawkes, Christine V. Tue .  
"Simulating diverse native C4 perennial grasses with varying rainfall".  United Kingdom.  https://doi.org/10.1016/j.jaridenv.2016.07.004.

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@article{osti_1279013,

  title        = {Simulating diverse native C4 perennial grasses with varying rainfall},

  author       = {Kim, Sumin and Williams, Amber and Kiniry, James R. and Hawkes, Christine V.},

  abstractNote = {Rainfall is recognized as a major factor affecting the rate of plant growth development. The impact of changes in amount and variability of rainfall on growth and production of different forage grasses needs to be quantified to determine how climate change can impact rangelands. Comparative studies to evaluate the growth of several perennial forage species at different rainfall rates will provide useful information by identifying forage management strategies under various rainfall scenarios. In this study, the combination of rainfall changes and soil types on the plant growth of 10 perennial forage species was investigated with both the experimental methods, using rainout shelters, and with the numerical methods using the plant growth simulation model, ALMANAC. Overall, most species significantly increased basal diameter and height as rainfall increased. Like measured volume, simulated yields for all species generally increased as rainfall increased. But, large volume and yield increases were only observed between 350 and 850 mm/yr. Simulating all species growing together competing agrees relatively well with observed plant volumes at low rainfall treatment, while simulating all species growing separately was slightly biased towards overestimation on low rainfall effect. Here, both simulations agree relatively well with observed plant volume at high rainfall treatment.},

  doi          = {10.1016/j.jaridenv.2016.07.004},

  journal      = {Journal of Arid Environments},

  number       = C,

  volume       = 134,

  place        = {United Kingdom},

  year         = {Tue Nov 01 00:00:00 EDT 2016},

  month        = {Tue Nov 01 00:00:00 EDT 2016}

}

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Table 1: Identification of plant materials used in this study.

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Works referencing / citing this record:

Effects of extreme changes in precipitation on the physiology of C4 grasses
journal, June 2018

Connor, Elise W.; Hawkes, Christine V.
Oecologia, Vol. 188, Issue 2
DOI: 10.1007/s00442-018-4212-5

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Title: Simulating diverse native C4 perennial grasses with varying rainfall

Abstract

Citation Formats

Figures / Tables:

Effects of extreme changes in precipitation on the physiology of C4 grasses journal, June 2018

Effects of extreme changes in precipitation on the physiology of C4 grasses
journal, June 2018