Legacies of Indigenous land use shaped past wildfire regimes in the Basin-Plateau Region, USA

Legacies of Indigenous land use shaped past wildfire regimes in the Basin-Plateau Region, USA
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原住民土地利用的遗产塑造了美国盆地高原地区过去的野火状况

DOI:
10.1038/s43247-021-00137-3
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发表时间:
2021
影响因子:
7.9
通讯作者:
Abbott, Mark
Abbott, Mark
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Carter, Vachel A.;Brunelle, Andrea;Power, Mitchell J.;DeRose, R. Justin;Bekker, Matthew F.;Hart, Isaac;Brewer, Simon;Spangler, Jerry;Robinson, Erick;Abbott, Mark

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气候条件对美国西部野火活动有重要影响;然而,几千年来,土著农业活动也可能塑造了当地的火灾制度。鱼湖高原位于大盆地-科罗拉多高原的交界处,是北美西部唯一一个玉米种植被采用然后突然放弃的地区。在这里,我们整合了沉积档案、树木年轮和考古数据,重建了过去1200年的火灾、气候和人类活动。我们在公元900年至1400年的史前农业高峰时期确定了一个高火灾活动时期,并表明农业可能通过频繁使用低严重程度的燃烧来掩盖气候对火灾制度的作用。当史前人类在公元1400年左右放弃农耕时,气候条件再次成为野火的主要驱动因素。我们得出结论,土著居民通过土地利用实践塑造了鱼湖高原的高海拔混合针叶林火灾制度。
Climatic conditions exert an important influence on wildfire activity in the western United States; however, Indigenous farming activity may have also shaped the local fire regimes for millennia. The Fish Lake Plateau is located on the Great Basin–Colorado Plateau boundary, the only region in western North America where maize farming was adopted then suddenly abandoned. Here we integrate sedimentary archives, tree rings, and archeological data to reconstruct the past 1200 years of fire, climate, and human activity. We identify a period of high fire activity during the apex of prehistoric farming between 900 and 1400 CE, and suggest that farming likely obscured the role of climate on the fire regime through the use of frequent low-severity burning. Climatic conditions again became the dominant driver of wildfire when prehistoric populations abandoned farming around 1400 CE. We conclude that Indigenous populations shaped high-elevation mixed-conifer fire regimes on the Fish Lake Plateau through land-use practices.
人为火法多样性在古火记录中是看不见的吗?
DOI: --
发表时间: 2019
期刊: Fire
影响因子: --
作者:
Christopher I. Roos;G. Williamson;D. Bowman
通讯作者: D. Bowman
DOI: 10.1126/science.1128834
发表时间: 2006-08-18
期刊: SCIENCE
影响因子: 56.9
作者:
Westerling, A. L.;Hidalgo, H. G.;Swetnam, T. W.
通讯作者: Swetnam, T. W.
人口扩散的生态学:模拟替代盆地高原觅食策略以解释数字扩张
DOI: --
发表时间: 2017
影响因子: 2.9
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K. Magargal;Ashley Parker;K. Vernon;W. Rath;B. Codding
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DOI: 10.1080/24694452.2018.1470922
发表时间: 2018-11-02
影响因子: 3.9
作者:
Klimaszewski-Patterson, Anna;Weisberg, Peter J.;Scheller, Robert M.
通讯作者: Scheller, Robert M.
DOI: --
发表时间: 2009
期刊:
影响因子: --
作者:
G. Dietl;K. Flessa
通讯作者: K. Flessa