Effects of climate change on key soil characteristics and strategy to enhance climate resilience of smallholder farming: an analysis of a pomegranate-field in a coastal Tunisian oasis

2020 ◽  
Vol 79 (19) ◽  
Author(s):  
Zied Haj-Amor ◽  
Latifa Dhaouadi ◽  
Dong-Gill Kim ◽  
Ruediger Anlauf ◽  
Naziha Mokadem ◽  
...  
2021 ◽  
Vol 3 ◽  
Author(s):  
Jennie Barron ◽  
Susanne Skyllerstedt ◽  
Meredith Giordano ◽  
Zenebe Adimassu

Rainfed smallholder farming is particularly vulnerable to climate change, which can greatly exacerbate existing poverty and livelihood challenges. Understanding the complexity of the systems that connect the environment, society and people can help us to reduce this vulnerability and increase the resilience of communities and households to climate perturbations. In recent years, resilience theory has proven a useful approach for exploring the complexity of development challenges. As a result, there has been an increase in the development of tools and frameworks for assessing resilience. Despite this increased focus, there is no consistent use of the resilience concept in development practice and little evidence as to the benefits of using the tools. This paper aims to bridge theory and practice by coupling research on resilience with its application in the international development field. The specific hypothesis we explore is if and how rural livelihoods build resilience toward increased climatic variability in already degraded agro-ecological landscapes? We present a resilience framework with indicators to assess the extent of community resilience to climate change through improved local agricultural production and natural resources management. Primary and secondary landscape and community data, together with development of participatory watershed action plans were used to populate 16 indicators in a resilience framework baseline for the two rainfed dominated watersheds in Ethiopia and Ghana respectively. Given community awareness of the challenges related to the watershed natural resources, local agriculture and extreme weather, the communities were very willing to develop action plans to improve their management of natural resources and build climate resilience. Nevertheless, our analysis of the watershed action plans revealed that strengthening resilience through local action alone, would likely not be sufficient to meet all climate -livelihood challenges identified. To address severity and recurrence of climate change related disturbances, such as droughts, floods and disease in poverty-affected rural communities, the capacity to improve resilience will depend on external factors, in addition to inherent action. New knowledge, infrastructure and social security mechanisms, including insurance and emergency assistance need to added to build resilience for poverty-affected communities in degraded watersheds. We conclude there are also challenges in the use of resilience framework for development and climate-action related to rural poverty affected and degraded livelihood systems. Populating complex social–environmental systems will also need further development, to understand progress in resilience building under changing climate. Special attention to systemic indicators that describe the coupling and interdependencies of social-ecosystem factors will be critical to take action.


Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1218
Author(s):  
Michael A. Kock

Plant related innovations are critical to enable of food security and mitigate climate change. New breeding technologies (NBTs) based on emerging genome editing technologies like CRISPR/Cas will facilitate “breeding-by-editing” and enable complex breeding targets—like climate resilience or water use efficiency—in shorter time and at lower costs. However, NBTs will also lead to an unprecedented patent complexity. This paper discusses implications and potential solutions for open innovation models.


Author(s):  
Marianna Fenzi ◽  
Paul Rogé ◽  
Angel Cruz-Estrada ◽  
John Tuxill ◽  
Devra Jarvis

AbstractLocal seed systems remain the fundamental source of seeds for many crops in developing countries. Climate resilience for small holder farmers continues to depend largely on locally available seeds of traditional crop varieties. High rainfall events can have as significant an impact on crop production as increased temperatures and drought. This article analyzes the dynamics of maize diversity over 3 years in a farming community of Yucatán state, Mexico, where elevated levels of precipitation forced farmers in 2012 to reduce maize diversity in their plots. We study how farmers maintained their agroecosystem resilience through seed networks, examining the drivers influencing maize diversity and seed provisioning in the year preceding and following the 2012 climatic disturbance (2011–2013). We found that, under these challenging circumstances, farmers focused their efforts on their most reliable landraces, disregarding hybrids. We show that farmers were able to recover and restore the diversity usually cultivated in the community in the year following the critical climate event. The maize dynamic assessed in this study demonstrates the importance of community level conservation of crop diversity. Understanding farmer management strategies of agrobiodiversity, especially during a challenging climatic period, is necessary to promote a more tailored response to climate change in traditional farming systems.


2021 ◽  
Author(s):  
Stephanie M. Juice ◽  
Paul G. Schaberg ◽  
Alexandra M. Kosiba ◽  
Carl E. Waite ◽  
Gary J. Hawley ◽  
...  

Abstract The varied and wide-reaching impacts of climate change are occurring across heterogeneous landscapes. Despite the known importance of soils in mediating biogeochemical nutrient cycling, there is little experimental evidence of how soil characteristics may shape ecosystem response to climate change. Our objective was to clarify how soil characteristics modify the impact of climate changes on carbon and nutrient leaching losses in temperate forests. We therefore conducted a field-based mesocosm experiment with replicated warming and snow exclusion treatments on two soils in large (2.4 m diameter), in-field forest sapling mesocosms. We found that nutrient loss responses to warming and snow exclusion treatments frequently varied substantially by soil type. Indeed, in some cases, soil type nullified the impact of a climate treatment. For example, warming and snow exclusion increased nitrogen (N) losses on fine soils by up to four times versus controls, but these treatments had no impact on coarse soils. Generally, the coarse textured soil, with its lower soil-water holding capacity, had higher nutrient losses (e.g., 12-17 times more total N loss from coarse than fine soils), except in the case of phosphate, which had consistently higher losses (23-58%) from the finer textured soil. Furthermore, the mitigation of nutrient loss by increasing tree biomass varied by soil type and nutrient. Our results suggest that potentially large biogeochemical responses to climate change are strongly mediated by soil characteristics, providing further evidence of the need to consider soil properties in Earth system models for improving nutrient cycling and climate projections.


Author(s):  
Nnyaladzi Batisani ◽  
Flora Pule-Meulenberg ◽  
Utlwang Batlang ◽  
Federica Matteoli ◽  
Nelson Tselaesele

2020 ◽  
Vol 29 (2) ◽  
pp. 58-70
Author(s):  
Prakash Upadhyay

This paper explores the changing climate, its impact, and the diversified practices of agropastoral adaption by a mountain community of Nepal. The findings reveal that there is an unswerving link between the changes in climate and their impact on the community and its adaptation options. The vulnerability and risk induced by the climate change has threatened the agropastoral subsistence, the sociocultural and economic structure, and the food sovereignty of the Loba community of Mustang district of Nepal and made them experience unanticipated complications in livelihood. In a changing climate, the community has attuned and restructured its adaptive strategy with diversified practices of collective labour in a traditional agropastoral system of landholding, mystical connectivity and seasonal relocation as an adaptive response ensuring the shared sustenance of the com munity. The challenge of climate change began long ago; it will persevere and be long- lasting. Hence, this paper argues for the need for a prudent adoption of measures to maintain an environmentally suitable agropastoral system of liveli hood well-being. Beyond enhancing community capacity and climate resilience, it is necessary to streamline and readjust indigenous sociocultural institutions by expanding their adaptive capacity, while recognizing the cultural dimensions grounded in systems of meanings and relationships and the way people and their culture experience and respond to exceptional climatic changes.


2021 ◽  
Author(s):  
Keira Webster

Climate change is a systemic issue embedded in and interconnected with the social and economic makeup of a city. Building urban climate resilience requires innovative, collaborative solutions that hinge upon the openness and availability of current and contextual data. Open data tools, in stimulating information sharing, civic engagement, and innovative products, can contribute to climate change planning, building lasting resilience. Through an exploratory research methodology, this paper explores 17 international use cases, providing a basis for the implementation of open data tools in the realm of urban climate resilience, through the following five themes: 1) risk and vulnerability assessment; 2) the inception of initiatives; 3) diverging approaches to preparedness; 4) community mobilization; and 5) mitigation and adaptation. This research aims to spark a dialogue on the intersection of open data tools in urban climate resilience strategies, demonstrating open data as an appropriate tool to cultivate shared understanding and collective action.


2018 ◽  
Vol 11 (5) ◽  
pp. 383-400 ◽  
Author(s):  
Peter R. Brown ◽  
Sharmin Afroz ◽  
Lytoua Chialue ◽  
T. Chiranjeevi ◽  
Sotheary El ◽  
...  

2020 ◽  
Author(s):  

This report aims to provide an overview of the gender and climate resilience nexus in the Caribbean and provide gender-inclusive recommendations for climate resilience programmes in the region. This report has been developed within the context of the Caribbean Pilot Programme for Climate Resilience (PPCR) to support gender mainstreaming into the regional and national programme activities. Specifically, the report seeks to: Understand how men and women participate in climate resilience programmes and how gender inequalities are exacerbated by climate change impacts in the sectors covered by the PPCR. Identify institutional arrangements and good practices for integrating gender equality concerns in Caribbean climate resilience programmes. The audience for this report is PPCR stakeholders (e.g. executing agencies, implementing partners, Inter-American Development Bank (IDB) country office teams) and project teams in the Caribbean seeking to mainstream gender into climate resilience projects in the future.


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