Zareen Pervez Bharucha

The roles and values of wild foods in agricultural systems

Almost every ecosystem has been amended so that plants and animals can be used as food, fibre, fodder, medicines, traps and weapons. Historically, wild plants and animals were sole dietary components for hunter–gatherer and forager cultures. Today, they remain key to many agricultural communities. The mean use of wild foods by agricultural and forager communities in 22 countries of Asia and Africa (36 studies) is 90–100 species per location. Aggregate country estimates can reach 300–800 species (e.g. India, Ethiopia, Kenya). The mean use of wild species is 120 per community for indigenous communities in both industrialized and developing countries. Many of these wild foods are actively managed, suggesting there is a false dichotomy around ideas of the agricultural and the wild: hunter–gatherers and foragers farm and manage their environments, and cultivators use many wild plants and animals. Yet, provision of and access to these sources of food may be declining as natural habitats come under increasing pressure from development, conservation-exclusions and agricultural expansion. Despite their value, wild foods are excluded from official statistics on economic values of natural resources. It is clear that wild plants and animals continue to form a significant proportion of the global food basket, and while a variety of social and ecological drivers are acting to reduce wild food use, their importance may be set to grow as pressures on agricultural productivity increase.

Integrated Pest Management for Sustainable Intensification of Agriculture in Asia and Africa

Integrated Pest Management (IPM) is a leading complement and alternative to synthetic pesticides and a form of sustainable intensification with particular importance for tropical smallholders. Global pesticide use has grown over the past 20 years to 3.5 billion kg/year, amounting to a global market worth

Improving health and well-being independently of GDP: dividends of greener and prosocial economies.

45 billion. The external costs of pesticides are

Improving China’s food and environmental security with conservation agriculture†

4–

All Paths Lead to Rain: Explaining why Watershed Development in India Does Not Alleviate the Experience of Water Scarcity

19 (€3–15) per kg of active ingredient applied, suggesting that IPM approaches that result in lower pesticide use will benefit, not only farmers, but also wider environments and human health. Evidence for IPM’s impacts on pesticide use and yields remains patchy. We contribute an evaluation using data from 85 IPM projects from 24 countries of Asia and Africa implemented over the past twenty years. Analysing outcomes on productivity and reliance on pesticides, we find a mean yield increase across projects and crops of 40.9% (SD 72.3), combined with a decline in pesticide use to 30.7% (SD 34.9) compared with baseline. A total of 35 of 115 (30%) crop combinations resulted in a transition to zero pesticide use. We assess successes in four types of IPM projects, and find that at least 50% of pesticide use is not needed in most agroecosystems. Nonetheless, policy support for IPM is relatively rare, counter-interventions from pesticide industry common, and the IPM challenge never done as pests, diseases and weeds evolve and move.

A TRANSNATIONAL AGRI-FOOD SYSTEM FOR WHOM? THE STRUGGLE FOR HEGEMONY AT RIO+20

Increases in gross domestic product (GDP) beyond a threshold of basic needs do not lead to further increases in well-being. An explanation is that material consumption (MC) also results in negative health externalities. We assess how these externalities influence six factors critical for well-being: (i) healthy food; (ii) active body; (iii) healthy mind; (iv) community links; (v) contact with nature; and (vi) attachment to possessions. If environmentally sustainable consumption (ESC) were increasingly substituted for MC, thus improving well-being and stocks of natural and social capital, and sustainable behaviours involving non-material consumption (SBs-NMC) became more prevalent, then well-being would increase regardless of levels of GDP. In the UK, the individualised annual health costs of negative consumption externalities (NCEs) currently amount to £62 billion for the National Health Service, and £184 billion for the economy (for mental ill-health, dementia, obesity, physical inactivity, diabetes, loneliness and cardiovascular disease). A dividend is available if substitution by ESC and SBs-NMC could limit the prevalence of these conditions.

Global assessment of agricultural system redesign for sustainable intensification

China has achieved impressive increases in agricultural output in recent decades. Yet, past approaches centred on a growing use of fertilizers, pesticides, fuel and water are not likely to achieve the required 30–50% additional increases in food production by mid-century. We show that efficiencies of production are falling and the costs of environmental harm are increasing. Agricultural innovations that improve natural capital are urgently needed. Conservation agriculture (CA) is now practised on >8 Mha in China and is offering promising prospects of both enhanced yields and environmental services. Our meta-analysis of 60 papers with 395 observations in China shows notable benefits from CA. Mean yield increase was 4.5% or 263 kg ha−1 for wheat, 8.3% or 424 kg ha−1 for maize, and 1.65% or 250 kg ha−1 for rice. In 34 datasets from 22 published papers (experimental duration: 2–17 years), 26 datasets (76.5%) show that CA increased yield and soil organic carbon (mean SOC increase of >3 g.kg−1 in 0–10 cm soil depth) when compared with traditional tillage. Key priorities for the spread of more sustainable forms of agriculture in China are national policy and financial support, better coordination across agencies, and better extension for farmers.

Ethno-Environmental Knowledge as A Tool to Combat Indoor Air Pollution in Low Income Countries: A Case Study from Rural Communities in Pakistan

Abstract Watershed development (WSD) projects in India are key to meeting a range of human development goals in rain-fed agrarian landscapes. However, outcomes are often observed to be partial and short-lived. We offer a novel perspective on the reasons. Our analysis shows that the dominant ‘water narratives’ of WSD policy and practice and the lived experience of local people contribute to a naturalisation of water scarcity, resulting in widespread views that WSD is primarily a means for increasing irrigation water supply. We show how this over-simplifies the complex problem of agricultural water use and perversely contributes to a continuing experience of water scarcity rather than its resolution.

Sustainable Intensification of Agriculture : Greening the World's Food Economy

Food has been one of the most debated and contested discourses in recent global environmental governance without this fact being reflected, however, in management and organizational studies (MOS). In this paper, we analyze the different positions taken in relation to the transnational agri-food system by the state sector, the private sector and civil society actors and we map key differences and similarities in the discourses of these groups at the influential 2012 Rio+20 Conference. Using neo-Gramscian discourse theory, we uncover the different politico-economic interests that exist and show how these different actors deal with the agri-food system. We demonstrate that international NGOs and grassroots social movements are very diverse in how they approach the question of food security, which in turn is reflected in how they vary in their approach to doing politics. This analysis contributes to our understanding of how hegemony is organized, highlighting the important role of different civil society actors in either maintaining or resisting hegemonic approaches to the transnational agri-food system.

On the climate of scarcity and crisis in the rainfed drylands of India

The sustainable intensification of agricultural systems offers synergistic opportunities for the co-production of agricultural and natural capital outcomes. Efficiency and substitution are steps towards sustainable intensification, but system redesign is essential to deliver optimum outcomes as ecological and economic conditions change. We show global progress towards sustainable intensification by farms and hectares, using seven sustainable intensification sub-types: integrated pest management, conservation agriculture, integrated crop and biodiversity, pasture and forage, trees, irrigation management and small or patch systems. From 47 sustainable intensification initiatives at scale (each >104 farms or hectares), we estimate 163 million farms (29% of all worldwide) have crossed a redesign threshold, practising forms of sustainable intensification on 453 Mha of agricultural land (9% of worldwide total). Key challenges include investment to integrate more forms of sustainable intensification in farming systems, creating agricultural knowledge economies and establishing policy measures to scale sustainable intensification further. We conclude that sustainable intensification may be approaching a tipping point where it could be transformative.Intensifying agricultural production often imposes environmental costs. This study assesses progress towards the redesign of agricultural systems, finding that seven types of sustainable intensification now characterize an estimated 29% of farms on 9% of agricultural land worldwide.