US-Mexico Collaborative Research: Afforestation Effects on Nitrogen Cycling in Mexico's Eastern Highlands

美国-墨西哥合作研究：墨西哥东部高地造林对氮循环的影响

基本信息

批准号：
1132444
负责人：
Alexandra Ponette
金额：
$ 4.67万
依托单位：
University of North Texas
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2011
资助国家：
美国
起止时间：
2011-10-01 至 2014-11-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1132444&HistoricalAwards=false
关键词：
US Mexico Collaborative Research Afforestation

项目摘要

In this U.S.-Mexico project researchers from the U.S. and Mexico will gain a preliminary understanding of the consequences of tropical afforestation and its spatial configuration across the landscape for nitrogen cycling, and to identify and model landscapes where plantation establishment is likely to have the greatest impact on nitrogen biogeochemistry. In this pilot study baseline measurements of nitrogen fluxes and nitrogen cycling will be conducted, and the ratios of carbon to nitrogen to phosphorus (C:N:P) in the litter and soils of pine plantations and grasslands will be examined. By quantifying differences in nitrogen cycling between pine plantations and grasslands, the research will shed light on ecosystem response to afforestation, whether natural or intentional, and to increasing levels of nitrogen deposition. Such investigations are needed in order to scale ecosystem process rates such as nitrification across spatially heterogeneous landscapes and to predict watershed nitrogen losses more accurately. This pilot will be carried out by an interdisciplinary team of researchers from two U.S. institutions, the University of North Texas and Cary Institute of Ecosystem Studies, in conjunction with colleagues from Universidad Veracruzana in Mexico.This project affords a valuable opportunity to answer important questions at the intersection of ecosystem science, global change, and land-cover change. This project should enable the researchers to confirm previous findings and develop a model of the nitrogen-cycling effects of afforestation, especially within the context of land-use change, increased nitrogen deposition from urbanization, and phosphorus-limited forests of tropical developing countries worldwide. The results of this study will provide the foundations for a future international collaborative research proposal that can provide important data for policy makers considering the implications of reforestation and afforestation and the potential trade-offs and unintended consequences of each. Graduate students and early-career scientists from underrepresented groups will benefit from inclusion in these studies with international research partners. Involvement of young researchers in collaborative international activities is a major goal of OISE.

在这项美国 - 墨西哥项目中，来自美国和墨西哥的研究人员将对热带造林的后果及其在整个景观中的空间配置的后果获得初步了解，以识别和模拟种植园的建立对硝基生物学生物体生物体学的影响最大的景观。在这项试验研究中，将检查氮通量和氮循环的基线测量，并将检查碳与氮与磷（C：N：P）的比率。通过量化松树种植园和草原之间氮循环的差异，该研究将揭示生态系统对造林的反应，无论是自然还是故意的，以及氮沉积的水平增加。为了扩展生态系统过程速率，例如跨空间异质景观，并更准确地预测氮损失，因此需要进行此类研究。该飞行员将由来自美国两家机构北德克萨斯大学和卡里生态系统研究所的研究人员跨学科团队进行，并与墨西哥大学的Veracruzana的同事一起进行。该项目为在生态系统科学科学，全球变化和陆地上的重要问题提供了一个宝贵的机会，可以回答重要的问题。该项目应使研究人员能够确认以前的发现并开发一种氮循环造成影响的模型，尤其是在土地利用变化的背景下，城市化增加了氮沉积以及全球热带发展中国家的磷属性森林。这项研究的结果将为未来的国际协作研究建议提供基础，该建议可以为政策制定者提供重要的数据，以考虑重新造林和造林的影响以及每个人的潜在权衡和意外的后果。来自代表性不足的团体的研究生和早期职业科学家将受益于与国际研究伙伴的这些研究。年轻研究人员参与协作国际活动是OISE的主要目标。

项目成果

期刊论文数量（3）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Hydrologic Connectivity in the High-Elevation Tropics: Heterogeneous Responses to Land Change

高海拔热带地区的水文连通性：对土地变化的异质响应

DOI：
10.1093/biosci/bit013
发表时间：
2013
期刊：
BioScience
影响因子：
10.1
作者：
Ponette-González, Alexandra G.;Marín-Spiotta, Erika;Brauman, Kate A.;Farley, Kathleen A.;Weathers, Kathleen C.;Young, Kenneth R.
通讯作者：
Young, Kenneth R.

Nitrogen cycling in tropical Atlantic Forest differing in exposure to urban atmospheric nitrogen deposition

热带大西洋森林的氮循环因暴露于城市大气氮沉降而不同

DOI：
10.1007/s11104-017-3421-8
发表时间：
2017
期刊：
Plant and Soil
影响因子：
4.9
作者：
Ponette-González, A. G.;Perroni, Y.;Weathers, K. C.;de Souza, P. A.;García-Oliva, F.;de Mello, W. Z.
通讯作者：
de Mello, W. Z.

Managing water services in tropical regions: From land cover proxies to hydrologic fluxes

DOI：
10.1007/s13280-014-0578-8
发表时间：
2015-09
期刊：
Ambio
影响因子：
6.5
作者：
A. Ponette-González;K. Brauman;E. Marín-Spiotta;K. Farley;K. Weathers;K. Young;L. Curran
通讯作者：
A. Ponette-González;K. Brauman;E. Marín-Spiotta;K. Farley;K. Weathers;K. Young;L. Curran