COLLABORATIVE RESEARCH: Testing a conceptually-driven framework to predict variability in the ecosystem consequences of plant invasion across heterogeneous landscapes

合作研究：测试概念驱动的框架来预测异质景观中植物入侵的生态系统后果的变异性

• 批准号: 1353296
• 负责人: Richard Phillips
• 金额: $ 34万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-04-15 至 2018-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1353296&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Testing; conceptually; driven

Invasive species have highly variable impacts on natural services, such as carbon storage and nutrient retention, that make them very difficult problems for land managers to address. This project examines the impacts of one of the most widespread invasive plant species in the eastern United States, Japanese stiltgrass, on how forests use carbon and nitrogen, and will develop a more general framework with which to explain how and why impacts of invasives differ so much among different forests. The research will be conducted at three locations in Indiana, North Carolina and Georgia so that soil and climate effects can be separated, and a combination of observational measurements, controlled experiments in labs and greenhouses, and experiments in the field will be used. This research addresses important questions about how individual plants, especially invasive species, affect how forests use and cycle carbon and nitrogen. The investigators will also develop a general framework for predicting the impacts of invasives more broadly that will enable predictions of when and where biological invasions will have the greatest effects. As part of this project, the scientists will work with high schools to conduct training programs for teachers in Indiana and Florida that will include the development of new curricula and activities. The project will also train several undergraduate students each summer of the project, will provide an opportunity for a new PhD and Masters students, and will train a post-doctoral associate as well. The results of the project will be made available to land managers, other scientists, and to the general public through a web site, public presentations, and publications. Stiltgrass is one of the most common invasive plants in the forests of eastern North America, so that helping land managers to more efficiently target its removal and restoration efforts will have lasting benefits for conservation and forest restoration projects in the future.

入侵物种对碳储存和养分保留等自然服务具有高度可变的影响，这使得土地管理者很难解决这些问题。该项目研究了美国东部最广泛的入侵植物物种之一——日本高跷对森林如何利用碳和氮的影响，并将制定一个更通用的框架来解释入侵植物的影响如何以及为何在不同森林之间存在如此大的差异。该研究将在印第安纳州、北卡罗来纳州和佐治亚州的三个地点进行，以便将土壤和气候的影响分开，并将结合观测测量、实验室和温室中的对照实验以及现场实验。 这项研究解决了有关植物个体（尤其是入侵物种）如何影响森林利用和循环碳和氮的重要问题。研究人员还将开发一个通用框架来更广泛地预测入侵的影响，从而预测生物入侵何时何地会产生最大影响。作为该项目的一部分，科学家们将与高中合作，为印第安纳州和佛罗里达州的教师开展培训计划，其中包括开发新课程和活动。该项目还将在每年夏天培训几名本科生，为新的博士生和硕士生提供机会，并将培训一名博士后助理。 该项目的结果将通过网站、公开演讲和出版物向土地管理者、其他科学家和公众提供。高跷是北美东部森林中最常见的入侵植物之一，因此帮助土地管理者更有效地确定其清除和恢复工作将为未来的保护和森林恢复项目带来持久的效益。