Boulder Creek CZO II: Evolution, Form, Function, and Future of the Critical Zone

Boulder Creek CZO II：关键区域的演变、形式、功能和未来

• 批准号: 1331828
• 负责人: Suzanne Anderson
• 金额: $ 490万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-10-01 至 2022-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1331828&HistoricalAwards=false
• 关键词: Boulder; Creek; CZO; II; Evolution

The central aims of the Boulder Creek Critical Zone Observatory (BcCZO) are to understand how the surface of the earth, or critical zone, is shaped by climate, organisms, and geology, and how it will respond to changing conditions in the future. The focus is on the 'architecture' of the critical zone, meaning the topographic lay of the land, and distribution of soils, rock outcroppings, and vegetation communities. This architecture reflects evolution in response to geologic processes and climate. The work addresses fundamental questions, such as: How does rock turn to sediment? How do landscapes evolve? What controls water, sediment, dissolved mineral and nutrient fluxes? What services do ecosystems provide? The Colorado Front Range is used as a natural laboratory for these questions; it typifies mountainous areas of the American West that support large human populations, and it bears legacies from a varied geologic and climatic history. Addressing how changing snow, wildfires and landuse will affect the critical zone depend on this fundamental knowledge of critical zone architecture, function, and evolution. The objectives are: 1) Document critical zone (CZ) evolution by determining rates of erosion of the range and its adjacent basin, and documenting the structure of the CZ at key sites. 2) Study weathering, transport, and biological processes that shape the CZ. 3) Analyze how CZ architecture governs the storage and flow of water, nutrients and sediments. 4) Model CZ functional response to near-future changes in temperature and precipitation, and associated changes in ecosystem and fire regime. 5) Communicate findings through talks, papers, K-12 education, undergraduate classes, and shared models. Methods include: 1) monitoring weather and water in selected sites, 2) sampling rock, soil, vegetation, and water for physical, chemical, and genetic data, 3) collecting rock, geophysical data and outcrop descriptions of CZ structure, 4) constructing conceptual and numerical models to quantify CZ evolution in past, present-day, and future scenarios.The transformative nature of the program lies in its integrative and interdisciplinary approach. BcCZO brings together ecologists, hydrologists, and geologists to study snowmelt, subsurface water flow, biota, soils and weathering. Monitoring of recent weather and fire events that have perturbed water, sediment, and solute export stimulate modeling efforts that can be used to project into a changing climate. Future-casting hydrologic and ecosystem states to 2050 will be undertaken. Research on snow, the geobiology of deep weathering, the roles of slope aspect, and the use of cosmogenic radionuclides connects BcCZO to other CZOs across the country.In addition to training graduate students and post-docs, BcCZO will engage secondary students and teachers in CZ science, reach out to underrepresented minority students, and produce simulation modules for public education. Through partnership with CU Science Discovery, BcCZO will develop a Field Course for Colorado secondary teachers, a Mountain Research Experience for high school students, and offer traveling School and Community science programs. A graduate researcher will transform CZ models into interactive simulations, tested by Science Discovery students and teachers, and contributed to the Science Education Resource Center (SERC).

博尔德溪临界区观测站（BcCZO）的中心目标是了解地球表面或临界区是如何由气候、生物和地质形成的，以及它将如何对未来不断变化的条件作出反应。 重点是关键区的“建筑”，即土地的地形，土壤，岩石露头和植被群落的分布。 这种结构反映了对地质过程和气候的反应。 这项工作解决了一些基本问题，例如：岩石是如何变成沉积物的？景观是如何演变的？是什么控制着水、沉积物、溶解矿物质和养分的流动？ 生态系统提供哪些服务？ 科罗拉多前线山脉被用作这些问题的天然实验室;它是美国西部支持大量人口的山区的典型代表，它承载着各种地质和气候历史的遗产。 如何解决不断变化的雪，野火和土地利用将影响关键区取决于关键区的结构，功能和演变的基本知识。目标是：1）通过确定山脉及其邻近盆地的侵蚀速率，并记录关键地带的结构，记录关键地带的演变。 2)研究塑造CZ的风化、运输和生物过程。 3)分析CZ结构如何控制水、营养物和沉积物的储存和流动。 4)CZ模式对近期温度和降水变化以及生态系统和火灾状况相关变化的功能响应。 5)通过讲座，论文，K-12教育，本科课程和共享模型来交流研究结果。 方法包括：1）在选定的地点监测天气和水; 2）对岩石、土壤、植被和水进行采样，以获取物理、化学和遗传数据; 3）收集岩石、地球物理数据和CZ结构的露头描述; 4）构建概念和数值模型，以量化CZ在过去、现在和未来的演变。BcCZO汇集了生态学家，水文学家和地质学家来研究融雪，地下水流，生物群，土壤和风化。监测最近的天气和火灾事件，扰动水，沉积物和溶质输出刺激建模的努力，可用于项目到不断变化的气候。 将进行到2050年的水文和生态系统状况预测。 BcCZO与全国各地的其他CZO建立了联系。除了培训研究生和博士后外，BcCZO还将吸引中学生和教师参与CZ科学，接触代表性不足的少数民族学生，并为公共教育制作模拟模块。 通过与CU科学发现合作，BcCZO将为科罗拉多中学教师开发一个实地课程，为高中生开发一个山区研究体验，并提供旅行学校和社区科学项目。 一名研究生研究员将把CZ模型转化为交互式模拟，由科学发现的学生和教师进行测试，并为科学教育资源中心（SERC）做出贡献。