Microhabitats associated with solar energy development alter demography of two desert annuals.
Microhabitats associated with solar energy development alter demography of two desert annuals.
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与太阳能开发相关的微生境改变了两种沙漠一年生植物的种群结构。
DOI：
10.1002/eap.2349
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发表时间：
2021-09
期刊：
影响因子：
--
通讯作者：
Hernandez RR
中科院分区：
文献类型：
--
作者：
Tanner KE;Moore-O'Leary KA;Parker IM;Pavlik BM;Haji S;Hernandez RR
旨在增加能源生产同时减少碳排放的政治和经济举措正在推动对太阳能的需求。因此，沙漠地区现在是发展大规模光伏太阳能设施的目标。在植被群落保持完整或在设施内恢复的情况下，地面安装的基础设施可能会对适应沙漠的植物产生负面影响，因为它会产生新的降雨径流和遮荫条件。我们在莫哈韦沙漠中使用实验太阳能电池阵列来测试这些改变的条件如何影响一对密切相关的本地一年生植物的种群动态：稀有的莫哈韦和常见的E。华莱士我们估计地上人口率（出苗率，存活率和繁殖力）超过7年，并使用种子库存活率从一个并行的研究，建立矩阵模型的人口增长在三个实验微生境。在干旱的年份，树荫往往会减少常见物种的生存，但增加稀有物种的生存。在一个潮湿的一年，从面板径流往往增加两个物种的种子产量。从微生境特定矩阵模型的人口增长预测表明，在潮湿的条件下，微生境的影响更强，在干燥的条件下，影响相对较小（缺乏降雨是一个压倒性的限制）。在最潮湿的一年里，稀有物种和常见物种在微生境中的表现模式不同。E.预计增长。由于对地上人口比率的负面影响，莫哈文斯的树荫大幅度减少。因此，在对种子库补充至关重要的湿润年份，稀有物种更容易受到面板基础设施的负面影响。我们的研究结果表明，与能源基础设施相关的改变的阴影和水径流制度将对一年生物种的人口转变产生不同的影响，并推动人口水平的过程，这些过程决定了当地的丰富性，弹性和持久性。
Political and economic initiatives intended to increase energy production while reducing carbon emissions are driving demand for solar energy. Consequently, desert regions are now targeted for development of large‐scale photovoltaic solar energy facilities. Where vegetation communities are left intact or restored within facilities, ground‐mounted infrastructure may have negative impacts on desert‐adapted plants because it creates novel rainfall runoff and shade conditions. We used experimental solar arrays in the Mojave Desert to test how these altered conditions affect population dynamics for a closely related pair of native annual plants: rare Eriophyllum mohavense and common E. wallacei. We estimated aboveground demographic rates (seedling emergence, survivorship, and fecundity) over 7 yr and used seed bank survival rates from a concurrent study to build matrix models of population growth in three experimental microhabitats. In drier years, shade tended to reduce survival of the common species, but increase survival of the rare species. In a wet year, runoff from panels tended to increase seed output for both species. Population growth projections from microhabitat‐specific matrix models showed stronger effects of microhabitat under wetter conditions, and relatively little effect under dry conditions (lack of rainfall was an overwhelming constraint). Performance patterns across microhabitats in the wettest year differed between rare and common species. Projected growth of E. mohavense was substantially reduced in shade, mediated by negative effects on aboveground demographic rates. Hence, the rare species were more susceptible to negative effects of panel infrastructure in wet years that are critical to seed bank replenishment. Our results suggest that altered shade and water runoff regimes associated with energy infrastructure will have differential effects on demographic transitions across annual species and drive population‐level processes that determine local abundance, resilience, and persistence.
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DOI：
10.1073/pnas.100126797
发表时间：
2000-05-23
影响因子：
11.1
作者：
Andelman, SJ;Fagan, WF
通讯作者：
Fagan, WF
影响因子：
4.8
作者：
BEATLEY, JC
通讯作者：
BEATLEY, JC
影响因子：
6.3
作者：
Caro, T;Eadie, J;Sih, A
通讯作者：
Sih, A
影响因子：
4.8
作者：
Franco, M;Silvertown, J
通讯作者：
Silvertown, J
影响因子：
5.2
作者：
Griffin, Daniel;Anchukaitis, Kevin J.
通讯作者：
Anchukaitis, Kevin J.