Biophysical interactions in agricultural systems across environmental gradients

农业系统跨环境梯度的生物物理相互作用

• 批准号: RGPIN-2015-06634
• 负责人: Isaac, Marney
• 金额: $ 1.6万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=654322
• 关键词: Biophysical; interactions; agricultural; systems; across

Innovative approaches to agriculture production will minimize a host of current challenges: misuse of fertilizers; soil and water contamination; land-use change. Indeed, there is rising interest in critical perspectives for such complex environmental problems. My research group and I respond to this need for research by examining alternative systems of agricultural production using novel techniques to quantify agroecosystem dynamics. My research program addresses important gaps in our understanding of plant traits and the nutrient economy of diverse agroecological systems. Broadly, my most significant research contributions have furthered our understanding of alternative systems of production by identifying agroecosystem dynamics that are beneficial to such systems. New research under this NSERC Discovery Grant Program will advance strategies to achieve important management prescriptions in both an Ontario and international agricultural context. Specifically, my contributions from this research program proposal will i) chart previously unreported interspecific interactions in multi-species systems, ii) develop new research tools to overcome limitations in describing belowground processes, iii) advance our understanding of plant-mediated nutrient supply in agriculture, and iv) illustrate interdisciplinary environmental research. This proposed integrated research is unique to Canada and extremely opportune, as rigorous scientific information is urgently needed at the intersection of food security, conservation, and sustainable development. ****Over the next five years, I will address three objectives:***1) Elucidate key dimensions of the nutrient economy of agroecosystems by examining plant-mediated nutrient acquisition and transfer processes under various abiotic stressors.***2) Assess local-scale environmental effects, specifically soil fertility, on plant functional traits and key trait syndromes.***3) Develop novel research tools, namely ground-penetrating radar, for detecting belowground processes in agroecosystems. ******The combination of fundamental principles, experimental techniques, and application renders this research program highly suitable for attracting and training of undergraduate and graduate students as well as prospective post-doctoral fellows. I strive to create a collaborative research environment and will delivery effective mentorship to all my HQP. My previous publication record with my students, my current student accomplishments and the high success of my students to secure employment in the environmental field (from private sector to university professorships) provides motivating evidence of my ability to create an encouraging, adaptable and successful training environment.***

农业生产的创新方法将最大限度地减少当前的一系列挑战：肥料的滥用；土壤和水污染；土地利用变化。事实上，人们对此类复杂环境问题的批判性观点越来越感兴趣。我和我的研究小组通过使用新技术来量化农业生态系统动态来检查农业生产的替代系统来满足这种研究需求。我的研究项目解决了我们对植物性状和不同农业生态系统的营养经济的理解中的重要差距。总的来说，我最重要的研究贡献通过确定有利于此类系统的农业生态系统动态，进一步加深了我们对替代生产系统的理解。 NSERC 发现资助计划下的新研究将推进战略，以在安大略省和国际农业背景下实现重要的管理方案。 具体来说，我对这项研究计划提案的贡献将i）绘制以前未报告的多物种系统中的种间相互作用，ii）开发新的研究工具以克服描述地下过程的局限性，iii）增进我们对农业中植物介导的养分供应的理解，以及iv）说明跨学科环境研究。 这项拟议的综合研究是加拿大独有的，而且非常时机，因为在粮食安全、保护和可持续发展的交叉点上迫切需要严格的科学信息。 ****在接下来的五年中，我将实现三个目标：***1) 通过研究各种非生物胁迫下植物介导的养分获取和转移过程，阐明农业生态系统养分经济的关键维度。***2) 评估当地规模的环境影响，特别是土壤肥力对植物功能性状和关键性状综合症的影响。***3) 开发新的研究工具，即地面穿透性研究工具 雷达，用于检测农业生态系统中的地下过程。 ******基本原理、实验技术和应用的结合使得该研究项目非常适合吸引和培养本科生、研究生以及未来的博士后研究员。我努力创造一个协作研究环境，并将为我的所有总部提供有效的指导。我之前与学生的出版记录、我目前的学生成就以及我的学生在环境领域（从私营部门到大学教授职位）就业所取得的巨大成功，都提供了有力的证据，证明我有能力创造一个令人鼓舞、适应性强和成功的培训环境。***