Network Cluster: Patterns and controls of ecohydrology, CO2 fluxes, and nutrient availability in pedogenic carbonate-dominated dryland critical zones
网络集群:成土碳酸盐主导的旱地关键区域的生态水文学、二氧化碳通量和养分可用性的模式和控制
基本信息
- 批准号:2012475
- 负责人:
- 金额:$ 526.93万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Cooperative Agreement
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-09-01 至 2025-08-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
The Critical Zone is the layer of Earth’s surface from the top of the trees to the bottom of the groundwater. Rocks, soil, water, air, and living organisms interact in the Critical Zone to provide life-sustaining resources such as food and water. Drylands, with arid to semi-arid climates, cover 45% of the Earth and provide homes to more than 2 billion people. The drylands of the American West are facing significant challenges caused by global change, such as drought and changing plant communities. Increases in human population and food demand have also converted many natural drylands in this region to irrigated farms. These changes in land use and climate have greatly affected the movement of water, carbon, nutrients and salt through different parts of the drylands. All of these changes impact the sustainability of natural and agricultural ecosystems. This project will investigate these important Critical Zone processes and improve our ability to predict future change. Specifically, this thematic cluster will investigate how carbonate minerals in dryland soils control and impact water, nutrients, salts, and carbon moving in and out of the Critical Zone. This project will help to educate and train middle to high school students, and college undergraduate and graduate students. These students will be provided with the motivation, skills and tools to become future professionals in science, technology, engineering, arts, and mathematics (STEAM). Our research and education efforts will also help to grow public awareness of the importance of the Critical Zone function and service in drylands.The Critical Zone in dryland ecosystems is an understudied but crucial part of the Earth system. It contrasts with mesic areas by having sparse vegetation, limited but dynamic soil moisture, deep water table, low soil organic matter, alkaline pH, and buildup of salt precipitates, especially as pedogenic carbonates that can develop into a thick caliche layer and dominate the soil structure. However, these systems are underrepresented in Critical Zone research and current conceptual models do not fully address phenomena unique to drylands such as development of pedogenic carbonate, dust storms, episodic precipitation, and high spatiotemporal variability in hydrological and biogeochemical processes. To fill these knowledge gaps, the overarching goal of the project is to increase our capacity to quantify and predict dryland carbon budgets across land-use and climatic gradients by examining the role of water and nutrient availability in regulating the movement of organic and inorganic carbon in the dryland Critical Zone. Specifically, this project centers around the multifaceted roles of pedogenic carbonates in dictating vadose zone water dynamics, the potential recharge to deep water table, and nutrient cycling in typical dryland landscapes, piedmont, playa and irrigated agricultural fields. These in turn drive trends in evolution of Critical Zone architectures and land-atmosphere C exchange. We will tackle these problems by using a comprehensive set of tools including eddy covariance towers, deep Critical Zone drilling, hydrogeophysical surveys, soil and hydrologic sensors, isotopic analysis, synchrotron, geochemical proxies, and genetic sequencing. This project builds on the rich historical data, knowledge, and models at the Jornada LTER, the Reynolds Creek CZO, USDA-ARS Kimberly site in Idaho and irrigated agricultural sites along the Rio Grande Valley in Texas. This thematic cluster will develop an interdisciplinary framework to understand material and energy flow through dryland Critical Zones and lay the foundation for managing Critical Zone function, evolution, and services, as well as forecasting carbon budget changes with future shifts in climate and land use in drylands.This project is jointly funded by the Critical Zone Collaborative Network and the Hydrologic Sciences programs in the Division of Earth Sciences and the Hispanic Serving Institutions program in the Education and Human Resources Directorate's Division of Human Resource Development.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
关键区域是从树顶到地下水底部的地球表面层。岩石,土壤,水,空气和活生物体在关键区域相互作用,以提供维持生命的资源,例如食物和水。干旱地区到半干旱的气候,覆盖了地球的45%,并为超过20亿人提供了房屋。美国西部的旱地面临着由全球变化造成的重大挑战,例如干旱和不断变化的植物社区。人口和粮食需求的增加也已将该地区的许多天然旱地转变为灌溉农场。土地利用和气候的这些变化极大地影响了水,碳,养分和盐的运动。所有这些变化都会影响自然和农业生态系统的可持续性。该项目将研究这些重要的关键区域过程,并提高我们预测未来变化的能力。特别是,该主题群集将研究旱地土壤中的碳酸盐矿物如何控制并影响水,养分,盐和碳进出关键区域。该项目将有助于对中学生以及大学本科生和研究生进行教育和培训。将为这些学生提供动力,技能和工具,以成为科学,技术,工程,艺术和数学(Steam)的未来专业人士。我们的研究和教育工作还将有助于提高公众对旱地关键区域功能和服务重要性的认识。旱地生态系统的关键区域是地球系统的理解但至关重要的部分。它与介质区域形成鲜明对比,这是稀疏的蔬菜,有限但动态的土壤水分,深水桌,低土壤有机物,醇ph和盐沉淀的堆积,尤其是因为可以发展成厚的瓦斯层并占据土壤结构的成源碳酸盐。但是,这些系统在关键区域研究中的代表性不足,当前的概念模型并未完全解决旱地所特有的现象,例如成源性碳酸盐的发展,尘埃风暴,情节降水以及水文和生物地球化学过程中的高空间时间变化。为了填补这些知识差距,该项目的总体目标是通过研究水和养分可用性在确定旱地关键区域中有机和无机碳运动中的作用和养分的作用,来提高我们量化和预测土地利用和慢性梯度的旱地碳预算的能力。具体而言,该项目围绕在典型的旱地景观,皮埃蒙特(Piedmont),普拉亚(Playa)和灌溉农业领域的养分循环中,围绕增生碳酸盐群在决定vadose区水动力学,潜在的补给以及养分循环中的多方面作用。这些反过来推动了关键区域架构和陆地大气C交换的发展趋势。我们将通过使用一套全面的工具来解决这些问题,包括涡流协方差塔,深临界区域钻孔,水地调查,土壤和水文传感器,同位素分析,同步性分析,同步性,地球化学代理和遗传测序。该项目建立在乔纳达(Jornada)的丰富历史数据,知识和模型的基础上,雷诺(Reynolds Creek)Czo,爱达荷州的USDA-ARS金伯利(USDA-ARS Kimberly)以及德克萨斯州里奥格兰德山谷(Rio Grande Valley)沿岸的农业遗址。该项目由关键区合作网络和地球科学部的水文科学计划和西班牙裔服务机构计划在教育和人力资源局的人力资源开发部门的人力资源开发部门共同资助。该奖项反映了NSF的法定任务,并被认为是通过基金会的知识优点和广泛影响的评估来通过评估来进行评估来获得的支持。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Lixin Jin其他文献
Importance of vegetation for manganese cycling in temperate forested watersheds
植被对于温带森林流域锰循环的重要性
- DOI:
- 发表时间:
2015 - 期刊:
- 影响因子:0
- 作者:
E. Herndon;Lixin Jin;D. Andrews;D. Eissenstat;S. Brantley - 通讯作者:
S. Brantley
The origin and geochemical cycle of soil selenium in a Se-rich area of China
中国富硒地区土壤硒的来源及地球化学循环
- DOI:
10.1016/j.gexplo.2013.09.006 - 发表时间:
2014-04 - 期刊:
- 影响因子:3.9
- 作者:
Haiyan Feng;Meng Zhang;Lixin Jin;Zezhong Kan - 通讯作者:
Zezhong Kan
Use of coronary anatomy and late enhancement information both derived from contrast-enhanced whole-heart coronary MRA at 3 T for the assessment of ischemic left ventricular dysfunction.
使用来自 3 T 对比增强全心冠状动脉 MRA 的冠状动脉解剖结构和晚期增强信息来评估缺血性左心室功能障碍。
- DOI:
10.1016/j.clinimag.2010.04.001 - 发表时间:
2011 - 期刊:
- 影响因子:2.1
- 作者:
Zhi Liu;Qi Yang;Yanming Zhao;Lixin Jin;R. Jerecic;Dong;Kuncheng Li;Q. Hua - 通讯作者:
Q. Hua
3.0 T contrast-enhanced whole-heart coronary magnetic resonance angiography for the evaluation of the cardiac venous anatomy
3.0 T 增强全心冠状动脉磁共振血管造影评估心脏静脉解剖结构
- DOI:
- 发表时间:
2010 - 期刊:
- 影响因子:0
- 作者:
Heng Ma;Qi Yang;Han Li;Xiangying Du;J. An;Lixin Jin;L. Ge;R. Jerecic;Debiao Li;Kuncheng Li - 通讯作者:
Kuncheng Li
Silicate and carbonate mineral weathering in soil profiles developed on Pleistocene glacial drift (Michigan, USA): Mass balances based on soil water geochemistry
更新世冰川漂移(美国密歇根州)土壤剖面中的硅酸盐和碳酸盐矿物风化:基于土壤水地球化学的质量平衡
- DOI:
10.1016/j.gca.2007.12.007 - 发表时间:
2008 - 期刊:
- 影响因子:5
- 作者:
Lixin Jin;E. L. Williams;K. Szramek;L. M. Walter;S. Hamilton - 通讯作者:
S. Hamilton
Lixin Jin的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Lixin Jin', 18)}}的其他基金
Improving minority advancement for geoscience equity nationally (IMAGEN)
提高全国地球科学公平性的少数族裔进步 (IMAGEN)
- 批准号:
2329485 - 财政年份:2024
- 资助金额:
$ 526.93万 - 项目类别:
Standard Grant
Collaborative Research: SitS: Development of multiple-scale sensor and remote sensing technology to quantify abiotic carbon dioxide emission in irrigated soils of aridlands
合作研究:SitS:开发多尺度传感器和遥感技术来量化干旱地区灌溉土壤中的非生物二氧化碳排放
- 批准号:
2034312 - 财政年份:2021
- 资助金额:
$ 526.93万 - 项目类别:
Standard Grant
Combine sensors, geophysical survey and geochemical tools to investigate pedogenic carbonate precipitation and carbon dioxide emission in irrigated soils of aridlands
结合传感器、地球物理调查和地球化学工具研究干旱地区灌溉土壤的成土碳酸盐降水和二氧化碳排放
- 批准号:
1853680 - 财政年份:2019
- 资助金额:
$ 526.93万 - 项目类别:
Standard Grant
Improved STEM education for 21st century environmental scientists through stratified mentoring and professional networking
通过分层指导和专业网络改善 21 世纪环境科学家的 STEM 教育
- 批准号:
1611860 - 财政年份:2016
- 资助金额:
$ 526.93万 - 项目类别:
Standard Grant
相似国自然基金
硼基纳米团簇自下而上结构生长机制和成键模式研究
- 批准号:22373061
- 批准年份:2023
- 资助金额:50 万元
- 项目类别:面上项目
铜卤团簇基多层次结构的构筑、演化与多模式发光性能
- 批准号:92261114
- 批准年份:2022
- 资助金额:70.00 万元
- 项目类别:重大研究计划
基于染色质三维构象和多组学融合的动态增强子团簇辨识及其在肿瘤中的调控模式解析
- 批准号:
- 批准年份:2021
- 资助金额:30 万元
- 项目类别:青年科学基金项目
基于染色质三维构象和多组学融合的动态增强子团簇辨识及其在肿瘤中的调控模式解析
- 批准号:32100421
- 批准年份:2021
- 资助金额:24.00 万元
- 项目类别:青年科学基金项目
近红外二区荧光/磁性合金纳米簇的制备及在多模式生物成像的研究
- 批准号:
- 批准年份:2020
- 资助金额:24 万元
- 项目类别:青年科学基金项目
相似海外基金
Imaging and multi-omics analyses to identify molecular subtypes of distinct emphysema patterns
影像学和多组学分析可识别不同肺气肿模式的分子亚型
- 批准号:
10736162 - 财政年份:2023
- 资助金额:
$ 526.93万 - 项目类别:
Deciphering the Endothelin Receptor Type A Dependent G Protein Code that Patterns the Mandibular First Pharyngeal Arch
破译下颌第一咽弓的 A 型内皮素受体依赖性 G 蛋白密码
- 批准号:
10447746 - 财政年份:2020
- 资助金额:
$ 526.93万 - 项目类别:
Deconstructing Psychoses Based on Patterns of Abnormal Brain Activity
根据异常大脑活动模式解构精神病
- 批准号:
9119103 - 财政年份:2014
- 资助金额:
$ 526.93万 - 项目类别:
Deconstructing Psychoses Based on Patterns of Abnormal Brain Activity
根据异常大脑活动模式解构精神病
- 批准号:
8837330 - 财政年份:2014
- 资助金额:
$ 526.93万 - 项目类别:
A taste for tastes?The spread of food choices & health behaviors in networks
品味品味?食物选择的广泛性
- 批准号:
7749312 - 财政年份:2009
- 资助金额:
$ 526.93万 - 项目类别: