Invasive lianas are drivers of and passengers to altered soil nutrient availability in urban forests
Invasive lianas are drivers of and passengers to altered soil nutrient availability in urban forests
复制标题
入侵藤本植物是城市森林土壤养分供应变化的驱动者和乘客
DOI：
10.1007/s10530-019-02134-2
复制
发表时间：
2019
影响因子：
2.9
通讯作者：
M. Bradford
中科院分区：
文献类型：
--
作者：
E. Ward;Clara C. Pregitzer;Sara E. Kuebbing;M. Bradford
藤本植物（木本藤本植物）是城市森林管理中的主要问题，因为它们能够降低树木的生长速度和存活率。控制入侵藤本植物的努力很普遍，但森林往往在管理后被重新入侵。土壤养分供应的变化可能有助于解释为什么一些森林容易受到再入侵。具体来说，入侵藤本植物可能是“司机”的改变养分动态，坚持在土壤中，有利于他们的重建，或者他们可能是“乘客”的条件所造成的先前网站的干扰。我们通过分析纽约市成熟阔叶林中藤本植物覆盖和森林干扰梯度的土壤来测试这些替代模型。总体而言，总的非本地藤本植物覆盖与土壤pH值升高，不稳定碳减少，改变净潜在硝化-三个条件表明土壤养分供应增加。然而，藤本植物的影响因物种而异。非本地藤本植物有一个积极的，消极的，中性的，或非线性的影响取决于一个单一的土壤变量的物种。因此，聚集的总非本地藤本植物覆盖可以掩盖物种水平的影响的方向和幅度。我们还发现森林干扰，非本地藤本植物覆盖，和土壤pH值之间的正相关关系，但我们没有发现干扰和净硝化作用或不稳定碳之间的关系。这些结果表明，非本地的藤本植物乘客的干扰和土壤pH值升高，但司机改变碳和氮的动态。因此，可能需要采取旨在减少土壤养分供应和清除入侵藤本植物的管理措施，以限制再入侵和促进生态系统恢复。
Lianas (woody vines) are a leading concern in urban forest management given their ability to reduce the growth rate and survival of trees. Efforts to control invasive lianas are widespread, yet forests are often reinvaded following management. Changes in soil nutrient availability could help explain why some forests are susceptible to reinvasion. Specifically, invasive lianas could be “drivers” of altered nutrient dynamics that persist in the soil and favor their re-establishment, or they could be “passengers” of conditions created by prior site disturbances. We test these alternative models by analyzing soils across gradients of liana cover and forest disturbance in mature hardwood forests in New York City. Overall, total non-native liana cover was linked to elevated soil pH, reduced labile carbon, and altered net potential nitrification—three conditions indicative of increased soil nutrient availability. However, the effects of lianas varied substantially by species. Non-native lianas had a positive, negative, neutral, or non-linear effect on a single soil variable depending on the species. Aggregation of total non-native liana cover can therefore obscure the direction and magnitude of species-level effects. We also found positive relationships between forest disturbance, non-native liana cover, and soil pH, but we found no relationships between disturbance and net nitrification or labile carbon. These results suggest that non-native lianas are passengers to elevated levels of disturbance and soil pH but drivers of altered carbon and nitrogen dynamics. As such, management efforts aimed at reducing soil nutrient availability and removing invasive lianas may be required to limit reinvasion and promote ecosystem recovery.
影响因子：
6.6
作者：
Nakagawa, Shinichi;Schielzeth, Holger
通讯作者：
Schielzeth, Holger
影响因子：
2.7
作者：
Craig, Matthew E.;Fraterrigo, Jennifer M.
通讯作者：
Fraterrigo, Jennifer M.
影响因子：
16.8
作者：
Dawson, Wayne;Moser, Dietmar;Essl, Franz
通讯作者：
Essl, Franz