Bur Oak (Quercus macrocarpa) Enrichment Plantings Enhance Successional Restoration of an Old Field

IF 2.3 4区 环境科学与生态学 Q2 ECOLOGY Ecological Restoration Pub Date : 2023-06-01 DOI:10.3368/er.41.2-3.99
Jon K. Piper
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Abstract

ABSTRACT Abandoned crop fields in central Kansas, USA, are soon colonized by several non-native and native woody species. This study compared subsequent vegetation change in control (unmanipulated) old field successional plots and plots planted with Quercus macrocarpa (bur oak) seedlings following cessation of row crop agriculture. The site, a former corn field, was subject to invasion primarily by Ulmus pumila (Siberian elm), Lonicera tartarica (Amur honeysuckle), and Juniperus virginiana (eastern redcedar). I established eight 20 m × 32 m plots in April 2007, four as controls and four each containing 40 bur oak seedlings planted 4 m apart. I monitored permanent 4 m × 4 m quadrats (12 quadrats per plot) for 16 years for the presence of naturally establishing herbaceous and woody species. I sampled a total of 94 herbaceous and 27 woody species, with L. maackii, U. pumila, and J. virginiana occurring in 95 to 100% of quadrats by 2022. Total species richness, total woody species richness, native woody species richness, and richness of animal-dispersed woody species were higher in the oak plots than in the controls. Dissimilarity between the treatments steadily increased with time. The results suggest that an enrichment planting of bur oak seedlings at the outset can influence the early successional trajectory of old fields, and indicate that such plantings can drive restorations away from invasive non-native species and toward more desirable native species in later years.
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栎(Quercus macrocarpa)富集种植促进旧田的演替恢复
摘要:美国堪萨斯州中部的废弃农田很快就被一些非本土和本土的木本物种所占据。本研究比较了行作物农业停止后,对照(未处理)老田演替地块和种植大果栎幼苗的地块随后的植被变化。该地曾是一片玉米地,主要受到了Ulmus pumila(西伯利亚榆树)、Lonicera酒石ica(阿穆尔金银花)和Juniperus virginiana(东部红雪松)的入侵。2007年4月,我建立了8个20米×32米的地块,其中4个作为对照,4个分别包含40棵橡树幼苗,间隔4米种植。我对4 m×4 m的永久性样方(每个地块12个样方)进行了16年的监测,以确定是否存在自然形成的草本和木本物种。到2022年,我共对94种草本和27种木本物种进行了采样,其中L.maackii、U.pumila和J.virginiana出现在95%至100%的象限中。橡树地的总物种丰富度、总木本物种丰富度、原生木本物种丰富度和动物分散木本物种丰富度高于对照。不同处理之间的差异随着时间的推移而稳步增加。研究结果表明,一开始就富集种植bur oak幼苗会影响旧田地的早期演替轨迹,并表明这种种植可以使恢复远离入侵的非本土物种,并在未来几年转向更理想的本土物种。
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来源期刊
Ecological Restoration
Ecological Restoration Environmental Science-Nature and Landscape Conservation
CiteScore
1.70
自引率
12.50%
发文量
24
期刊介绍: Ecological Restoration is a forum for people advancing the science and practice of restoration ecology. It features the technical and biological aspects of restoring landscapes, as well as collaborations between restorationists and the design professions, land-use policy, the role of education, and more. This quarterly publication includes peer-reviewed science articles, perspectives and notes, book reviews, abstracts of restoration ecology progress published elsewhere, and announcements of scientific and professional meetings.
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