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首页> 外文期刊>Southeastern naturalist >Forage or Biofuel: Assessing Native Warm-season Grass Production among Seed Mixes and Harvest Frequencies within a Wildlife Conservation Framework
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Forage or Biofuel: Assessing Native Warm-season Grass Production among Seed Mixes and Harvest Frequencies within a Wildlife Conservation Framework

机译：牧草或生物燃料：在野生动物保护框架中评估种子混合和收获频率的原生暖季草生产

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摘要

Native warm-season grasses (NWSG) are gaining merit as biofuel feedstocks for ethanol production with potential for concomitant production of cattle forage and wildlife habitat provision. However, uncertainty continues regarding optimal production approaches for biofuel yield and forage quality within landscapes of competing wildlife conservation objectives. We used a randomized complete block design of 4 treatments to compare vegetation structure, forage and biomass nutrients, and biomass yield between Panicum virgatum (Switchgrass) monocultures and NWSG polycultures harvested once or multiple times near West Point, MS, 2011-2013. Despite taller vegetation and greater biomass in Switchgrass monocultures, NWSG polycultures had greater vegetation structure heterogeneity and plant diversity that could benefit wildlife. However, nutritional content from harvest timings optimal for wildlife conservation (i.e., late dormant season-collected biomass and mid-summer hay samples) demonstrated greater support for biofuel production than quality cattle forage. Future research should consider testing various seed mixes for maximizing biofuel or forage production among multiple site conditions with parallel observations of wildlife use.
机译：本机暖季草（NWSG）正在获得乙醇生产的生物燃料原料，伴随养牛和野生动物栖息地提供的潜力。然而，在竞争野生动物保护目标的景观中，对生物燃料产量和饲料质量的最佳生产方法进行了不确定性。我们使用了4种治疗的随机完整块设计，以比较植被结构，饲料和生物量营养，以及Panicum Virgatum（Switchgrass）单栽培和NWSG Polyculture之间的生物量产量，并在West Point附近收获一次或多次，2011-2013。尽管植被较高，但在Expertgrass单一栽培中具有更高的生物量，但NWSG的多种植体具有更大的植被结构，可以使野生动物受益的异质性和植物多样性。然而，来自收获时间的营养内容最佳野生动物保护（即，晚期休眠季节收集的生物质和中暑中的干草样本）表现出比优质养牛所生产的更大支持。未来的研究应考虑测试各种种子混合，以便在多个地点条件下最大化生物燃料或饲料生产，并在野生动物使用的平行观察。

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  • 来源
    《Southeastern naturalist》 |2019年第1期|共18页
  • 作者

    Iglay Raymond B.; Conkling Tara J.; DeVault Travis L.; Belant Jerrold L.; Martin James A.;

  • 作者单位

    Mississippi State Univ Dept Wildlife Fisheries &

    Aquaculture Box 9690 Mississippi State MS 39762 USA;

    Mississippi State Univ Dept Wildlife Fisheries &

    Aquaculture Box 9690 Mississippi State MS 39762 USA;

    Anim &

    Plant Hlth Inspect Serv USDA Wildlife Serv Natl Wildlife Res Ctr 6100 Columbus Ave Sandusky OH 44870 USA;

    Mississippi State Univ Dept Wildlife Fisheries &

    Aquaculture Box 9690 Mississippi State MS 39762 USA;

    Univ Georgia Warnell Sch Forestry &

    Nat Resources Savannah River Ecol Lab Warnell 3 Room 320 180 East Green St Athens GA 30602 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然地理学;
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