NSF Minority Postdoctoral Research Fellowship for FY2008

2008 财年 NSF 少数族裔博士后研究奖学金

基本信息

批准号：
0805576
负责人：
Marcelo Ardon-Sayao
金额：
$ 12.3万
依托单位：
Ardon-Sayao Marcelo
依托单位国家：
美国
项目类别：
Fellowship Award
财政年份：
2008
资助国家：
美国
起止时间：
2008-07-01 至 2011-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0805576&HistoricalAwards=false
关键词：
NSF Minority Postdoctoral Research Fellowship

项目摘要

This action funds an NSF Minority Postdoctoral Fellowship for FY 2008. The fellowship supports a research and training plan in a host laboratory for the Fellow who also presents a plan to broaden participation in biology. The research and training plan for this fellowship to Marcelo Ardon-Sayao is entitled "Nutrient cycling in coastal wetland ecosystems under an accelerating hydrologic cycle." The sponsoring scientist is Dr. Emily S. Bernhardt at Duke University.Global climate change is forecasted to impact society and ecosystems by altering the frequency and intensity of extreme weather events. Increased intensity and frequency of storms could impair the ability of coastal wetlands to prevent water quality problems, such as increased nutrient runoff to coastal ecosystems. The main goal of this research is to develop empirical relationships describing the effects of increasingly variable wetland hydrology on nitrogen (N) and phosphorus (P) retention in nutrient rich coastal plain ecosystems by addressing the following questions: 1) How does timing and frequency of storms affect the fate and transport of N and P across a recently restored wetland ecosystem? 2) How does the temporal variability of rainfall affect transformations of N and P in wetland soils? 3) How do landscape fluxes of N and P change during rapid experimental reductions of water level? Research will be conducted primarily within a 400-ha wetland mitigation project in Tyrell County, NC. The training goals include learning new experimental and analytical techniques to examine the effects of altered hydrology on nutrient transformation in wetlands across different scales and establishing long-term collaborations with scientists in different disciplines, government officials, consultants, and land owners to further the application of research to public policy. Broader impacts include increasing the participation of under-represented minorities at the postdoctoral level and mentoring undergraduate students in ecological research, making an effort to involve underrepresented minority students. This research will aid predictions of the likely direction of change of nutrient exports as a result of a more hydrologically variable future for southeastern coastal plain ecosystems.

该行动为2008财年的NSF少数族裔奖学金提供了资金。该奖学金支持该研究员的主持人实验室的研究和培训计划，该研究员还提出了扩大生物学参与的计划。该奖学金的Marcelo Ardon-Sayao奖学金的研究和培训计划的标题为“在加速的水文周期下，沿海湿地生态系统中的营养循环”。赞助科学家是杜克大学的Emily S. Bernhardt博士。全球气候变化通过改变极端天气事件的频率和强度，预计会影响社会和生态系统。暴风雨的强度和频率增加可能会损害沿海湿地防止水质问题的能力，例如增加沿海生态系统的营养径流。这项研究的主要目的是建立经验关系，描述日益变化的湿地水文学对氮（N）和磷（P）保留在营养丰富的沿海沿海平原生态系统中的影响：1）通过解决以下问题：1）暴风雨的时间和频率如何影响近期还修复的湿地环境的n和p运输？ 2）降雨的时间变化如何影响湿地土壤中N和P的转化？ 3）在水位快速实验性降低期间，N和P的景观通量如何变化？研究将主要在北卡罗来纳州泰瑞尔县的400-HA湿地缓解项目中进行。培训目标包括学习新的实验和分析技术，以研究改变水文学对不同规模的湿地的营养转化的影响，并与不同学科，政府官员，顾问和土地所有者的科学家建立长期合作，以进一步将研究应用于公共政策。更广泛的影响包括增加代表性不足的少数民族在博士后一级的参与，并指导本科生从事生态研究，从而涉及不足代表人数不足的少数群体学生。这项研究将有助于预测由于东南沿海平原生态系统的水平变化未来，营养素出口变化的可能方向。