"International". Jali Ardhi [Care for the Land] project: Realising land management change in degraded Maasai grazing lands.

“Jali Ardhi”在斯瓦希里语中的意思是“关爱土地”。这是全球挑战研究基金跨学科项目“极端事件驱动的土壤侵蚀的社会生态恢复力：东非过去、现在和未来的挑战”的简称，本创新提案以此为基础。土壤侵蚀和下游淤积问题对水、粮食和能源(即HEP)安全构成越来越大的气候变化威胁。即使在“正常”气候条件下，尽管下游的生态系统和水资源遭到破坏，但水对土壤的侵蚀也会降低农田上的水和养分保持、生物多样性和植物初级生产力，从而对粮食生产造成压力。这削弱了依赖土壤和水资源的社区的环境和经济复原力，而物质和社会文化的积极反馈机制往往放大了冲击。在社区一级，土壤侵蚀通过破坏粮食和水安全以及在支离破碎的地貌中限制社区、资源和市场之间的流动性而产生严重影响。然而，环境冲击可以带来一种学习体验，将一个系统推向一条本质上不同的途径，并能够支持比以前更高的弹性水平(有时被称为“反弹”)。共同设计可持续的土地管理做法和实施适当的以社区为中心的立法，将使农村社区能够(1)通过恢复/加强退化的景观，从环境影响中恢复到超过以前状态的恢复水平，(2)经受住未来极端气候事件的冲击，具有较长期的可持续性和社会经济效益。这项创新后续赠款提案借鉴了坦桑尼亚农村地区土壤侵蚀原因、过程和影响的深入证据，特别是处于从牧业向更多定居和农牧混合生计过渡的脆弱状态的马赛社区。它建立在经过验证的跨学科利益攸关方参与的基础上，为制定自下而上的政策工具提供新的行动框架，以便在土地管理实践中实现可信的变革，为这些贫穷的农村社区带来长期的社会经济利益。创新方案将以由此产生的问题研究证据和土地管理变革的潜在途径为基础，进而为最终用户社区带来具体和切实的成果，如农业活动多样化、采用保护性农业/放牧办法和替代、可持续生计发展。促进土地管理实践的逐步改变以减少复杂的土壤侵蚀影响是联合国可持续发展目标(SDG)中的一个基本目标(例如SDG15，目标3，减少土地退化，同时使社区变得更有弹性，例如SDG13)，这是一项挑战，需要我们的团队开发和证明跨学科方法。我们与地方政府、土壤保持非政府组织、参与式方法和最终用户社区的关键合作伙伴、参与式方法专家和最终用户社区(我们与他们在先前的研究中保持着密切的工作关系)合作，我们拟议的创新活动将为如何从研究证据中实现土地管理变化提供示范。虽然这个小型创新项目提供了一个与社区展示基于证据的、自下而上的新方法的机会，但扩大贾利·阿尔迪方法对东非地区的影响仍然是我们更大的抱负。

'Jali Ardhi' means 'Care for the Land' in Swahili. This is the short project name for the interdisciplinary Global Challenges Research Fund project "Socio-ecological resilience to soil erosion driven by extreme events: past, present and future challenges in East Africa" upon which this innovation proposal is based.Soil erosion and downstream siltation problems challenge water, food and energy (i.e. HEP) security with growing threats from climate change. Even under 'normal' climatic conditions, soil erosion by water reduces water and nutrient retention, biodiversity and plant primary productivity on agricultural land putting stress on food production, notwithstanding ecosystem and water resource damage downstream. This undermines the environmental and economic resilience of communities that depend on soil and water resources, and shocks are often amplified by physical and socio-cultural positive feedback mechanisms. At community level, soil erosion has severe impacts through undermining food and water security and curtailing mobility between communities, resources and markets in fragmented landscapes. Environmental shocks can, however, lead to a learning experience that propels a system to a qualitatively different pathway and can support greater-than-previous levels of resilience (sometimes termed 'bounce back'). Co-design of sustainable land management practices and implementation of appropriate community-focussed legislation will enable rural communities to (1) recover from environmental impacts to a resilience level beyond the prior state through restoration/enhancement of degraded landscapes and (2) withstand shock of future extreme climatic events with longer-term sustainability and socio-economic benefits.This Innovation follow-on grant proposal draws on in-depth evidence of soil erosion causes, processes and impacts in rural Tanzania, specifically Maasai communities that are in a fragile state of transition from pastoralism to more sedentary and mixed agri-pastoral livelihoods. It builds on proven and interdisciplinary stakeholder engagement to deliver a new action framework for the development of bottom-up policy instruments (byelaws) to achieve credible change in land management practice with long-term socio-economic benefits for these impoverished rural communities. The Innovation programme will build on the resulting research evidence base of the problem and potential pathways to land management change that, in turn, underpin specific and tangible outcomes for the end-user communities such as diversification of agricultural activity, adoption of conservation agriculture/grazing approaches and alternative, sustainable livelihood development. Facilitating a step change in land management practice to reduce complex soil erosion impacts is a fundamental target within the UN Sustainable Development Goals (SDGs) (e.g. SDG15, target 3 reducing land degradation while enabling communities to become more resilient e.g. SDG13), a challenge that requires the interdisciplinary approach developed and proven by our team.Working with key partners in local government, a soil conservation NGO, specialists in participatory approaches and end-user communities (with whom we have a close working relationship from prior research), our proposed innovation activities will provide an exemplar for how land management change can be realised from research evidence. While this small innovation project offers an opportunity to demonstrate a new evidence-based, bottom-up approach with communities, scaling up the impact of the Jali Ardhi approach to the East African region remains our wider ambition.