SEES Fellows: Barriers to soil sustainability, food security and biodiversity conservation in the Albertine Rift

SEES 研究员：阿尔伯丁裂谷土壤可持续性、粮食安全和生物多样性保护的障碍

• 批准号: 1462057
• 负责人: Lisa Tiemann
• 金额: $ 20.16万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1462057&HistoricalAwards=false
• 关键词: SEES; Fellows; Barriers; soil; sustainability

This project will explore how socio-economic and soil fertility factors interact to generate unsustainable agricultural practices in Uganda; how the trend of productivity loss might be reversed; and how the reversal of productivity declines can be used to protect one of Earth?s most valuable biodiversity resources ? the Albertine Rift including Kibale National Park. The research will use an interdisciplinary approach, integrating elements of ecology, soil science, and social sciences to link patterns of land use intensity with soil fertility and the socio-economic barriers that inhibit sustainable farming practices. The project will explore new paradigms in soil organic matter formation and degradation to form a better understanding of links between land use and soil fertility. In addition, the project will compile survey data for a broad-scale quantitative assessment of the effects of traditional land management practices as compared with perceptions about productivity and soil fertility in a spatially explicit manner. Soil fertility will be defined by measurements of soil organic matter, soil carbon, nitrogen and phosphorus, pH, water holding capacity and microbial biomass. These data will be integrated by mapping demographic factors, ethnicity, and risks, overlaid with land use and areas of perceived and actual declines in soil fertility. This type of integration will be useful in identifying socio-economic factors that may act as barriers in maintaining soil fertility. This project will create new ties among North American and Ugandan scientists. Research will be conducted in close collaboration with local farmers in order to raise awareness of the importance of soils and soil sustainability. In addition, the project will partner with non-governmental organizations and local schools to engage thousands of school children in science education activities related to sustainable agriculture practices.Agricultural intensification to meet increasing food demands in less developed areas of sub-Saharan Africa results in only short term increases in crop yields. Methods, such as cultivating more land, reducing fallow periods, and increasing crop density are not sustainable because land suitable for cultivation is finite, soil organic matter is depleted and fertility is lost, and biological processes are minimized, leading to severely reduced future production potentials. This project will explore cost effective and culturally acceptable methods for maintaining soil organic matter and improving soil fertility, with the goals of increased food security and the conservation of biodiversity.This project is supported under the NSF Science, Engineering and Education for Sustainability Fellows (SEES Fellows) program, with the goal of helping to enable discoveries needed to inform actions that lead to environmental, energy and societal sustainability while creating the necessary workforce to address these challenges. With SEES Fellows support, this project will enable a promising early career researcher to establish themselves in an independent research career related to sustainability.

该项目将探讨社会经济因素和土壤肥力因素如何相互作用，在乌干达产生不可持续的农业做法；如何扭转生产率下降的趋势；以及如何利用生产力下降的逆转来保护地球的一部分？最宝贵的生物多样性资源是什么？包括基巴莱国家公园在内的艾伯丁裂谷。这项研究将采用跨学科的方法，综合生态学、土壤科学和社会科学的要素，将土地利用强度的模式与土壤肥力和阻碍可持续农业做法的社会经济障碍联系起来。该项目将探索土壤有机质形成和退化的新范式，以便更好地了解土地利用与土壤肥力之间的联系。此外，该项目将汇编调查数据，以便对传统土地管理做法的影响进行大规模定量评估，并以空间明确的方式将其与对生产力和土壤肥力的认识进行比较。土壤肥力将通过测量土壤有机质、土壤碳、氮、磷、pH值、持水量和微生物生物量来确定。这些数据将通过绘制人口因素、种族和风险图进行整合，并叠加土地利用情况以及土壤肥力感知和实际下降的地区。这种综合将有助于查明可能成为维持土壤肥力障碍的社会经济因素。这个项目将在北美和乌干达科学家之间建立新的联系。将与当地农民密切合作进行研究，以提高对土壤和土壤可持续性重要性的认识。此外，该项目将与非政府组织和当地学校合作，使数千名学童参与与可持续农业做法有关的科学教育活动。在撒哈拉以南非洲欠发达地区，为满足日益增长的粮食需求而进行的农业集约化只能在短期内提高作物产量。增加耕地、减少休耕期和增加作物密度等方法是不可持续的，因为适合耕种的土地有限，土壤有机质枯竭，肥力丧失，生物过程最小化，导致未来生产潜力严重降低。该项目将探索具有成本效益和文化上可接受的保持土壤有机质和提高土壤肥力的方法，其目标是增加粮食安全和保护生物多样性。该项目由美国国家科学基金会科学、工程和教育可持续发展研究员（SEES研究员）计划支持，其目标是帮助实现必要的发现，为导致环境、能源和社会可持续发展的行动提供信息，同时创造必要的劳动力来应对这些挑战。在see研究员的支持下，该项目将使有前途的早期职业研究人员能够在与可持续性相关的独立研究生涯中建立自己的职业生涯。