Dissertation Research: "Impacts of Alliaria Petiolata Invasion on Nutrient Cycling in Southern New England Forests"

论文研究：“Alliaria Petiolata 入侵对新英格兰南部森林养分循环的影响”

• 批准号: 0608343
• 负责人: Adrien Finzi
• 金额: --
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-10-15 至 2008-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0608343&HistoricalAwards=false
• 关键词: Dissertation; Research; Impacts; Alliaria; Petiolata

The introduction of invasive plants can alter ecosystem function, decrease the biological diversity of native communities and reduce the ecosystem services provided. Alliaria petiolata is an aggressive invader of forest communities in the northeastern United States. The objective of this research is to examine the impacts of Alliaria on nutrient cycling and native plant diversity and growth. Alliaria produces secondary compounds which release organic cyanides upon degradation. These compounds may confer a competitive advantage to it by altering soil microbes or by influencing nutrient availability in other ways. The impacts on nutrient availability will be determined using litter decomposition experiments, analyses of microbial diversity and function, and assessments of nutrient dynamics in field and laboratory experiments. Native plant diversity and growth will be measured in field and greenhouse experiments. The broader impacts of this research include both new insights into the mechanisms by which invasive plants alter ecosystem function, as well as associated education and outreach activities.

侵入性植物的引入可以改变生态系统功能，降低本地社区的生物学多样性并减少所提供的生态系统服务。 Alliaria Petiolata是美国东北部森林社区的积极入侵者。 这项研究的目的是检查Alliaria对营养循环和本地植物多样性和生长的影响。 Alliaria产生次要化合物，在降解后释放有机氰化物。 这些化合物可以通过改变土壤微生物或以其他方式影响养分利用率来赋予其竞争优势。 对养分利用率的影响将使用垃圾分解实验，微生物多样性和功能的分析以及野外和实验室实验中养分动力学的评估确定。 天然植物的多样性和生长将在田间和温室实验中进行测量。 这项研究的更广泛影响包括对侵入性植物改变生态系统功能以及相关教育和外展活动的机制的新见解。