42 Species, One Acre: Why India's Agricultural Metrics Fail Its Most Biodiverse Farmers
Gangubai cultivates 42 species of food, fodder, and medicine on a single acre — yet India's classification system marks her 'marginal'. The problem, argue agroecology practitioners, lies not in her farm but in how we measure farming success
Expert insights
Dr. Sarika Kulkarni · Co-founder and CEO, Raah Foundation
Dr. Sarika Kulkarni co-founded Raah Foundation, restoring degraded Western Ghats landscapes through women-led food forests and watershed revival across 10,000-plus acres.
The short answer
A smallholder farmer named Gangubai grows 42 plant species — including toor dal, nachni, turmeric, ginger, nine varieties of leafy greens, and fruit trees — on just one acre, yet is officially classified as a 'marginal farmer' under India's agricultural measurement framework. The current system counts acreage and primary crop output, entirely ignoring biodiversity, year-round food security, and ecosystem resilience. Agroecology practitioners argue that this metric gap systematically devalues polyculture and food-forest models that are among the most climate-adaptive farming systems available.
The classification gap
One Acre, 42 Species — and Still Called Marginal
By official reckoning, Gangubai Lakshman Thorat — known here simply as Gangubai — is a marginal farmer. By any ecological standard, she runs one of the most productive and resilient plots imaginable.
Gangubai farms in the Trimbakeshwar taluka of Nashik district, Maharashtra, in a predominantly tribal, forested stretch of the Sahyadris where Nashik's tribal belt borders the Jawhar and Mokhada talukas of neighbouring Palghar district. Her single acre here carries toor dal, nachni, bhendi, alu, karvand, jambhul, and kartoli, alongside turmeric, ginger, and multiple pulses. Mango and cashew trees form an overhead canopy; nine varieties of leafy greens — none with common English names — fill the understorey. In total, 42 distinct species of food, fodder, and medicine grow within that one acre.
Yet under India's land-size-based classification system, a holding of this scale earns the label 'marginal' — a term that shapes everything from credit eligibility and insurance coverage to how climate-adaptation funds are directed. A farmer holding ten acres under a single cash crop, by contrast, is simply 'a farmer'. The anomaly is stark, and it points to a foundational mismatch between how agricultural policy counts farms and what actually constitutes farming excellence.
The metric problem
When Systems Count Acres, Not Abundance
India's farm data architecture was built around area and primary-crop yield — logical metrics for a mid-twentieth-century Green Revolution context that prioritised scale and surplus grain. But those same metrics are now poorly suited to evaluating polyculture systems that deliver entirely different kinds of value.
A multi-species food forest like Gangubai's provides:
- Year-round household food security across staples, vegetables, fruit, and protein crops
- Climate buffer capacity — diversity of harvest windows reduces total crop failure risk under erratic monsoons
- Soil regeneration through mixed root systems, organic matter cycling, and reduced chemical input dependence
- Biodiversity conservation, particularly significant in ecologically sensitive zones
None of these outputs register meaningfully in the data columns that determine a farmer's official status or subsidy entitlement. The result is that the most ecologically sophisticated farming in the country remains, statistically, at the margins.
Gangubai isn't farming the margins. She is managing a resilient ecosystem.
The climate case
Food Forests as Frontline Climate Adaptation
The global discourse on climate-smart agriculture has produced an expanding portfolio of funded projects, pilot schemes, and research programmes. Agroecology practitioners point out, however, that working food-forest models — already operational at the farm level — frequently receive less institutional attention than engineered interventions.
Gangubai's one-acre system embodies several properties that climate-adaptation frameworks explicitly seek to promote: crop diversification to manage weather risk, perennial tree cover to stabilise microclimate, and integrated soil-building that reduces dependence on external inputs. These are not hypothetical benefits awaiting scientific validation; they are the lived outcomes of a management system that has evolved through practice.
The argument being advanced by agroecology practitioners is direct: if climate adaptation has a recognisable face at the farm level, it resembles a diversified food forest more closely than many formally funded projects operating in the same space. Acknowledging that demands a willingness to rewrite what counts as evidence of agricultural success.
The policy ask
Rethinking What We Measure — and What We Value
The core challenge is not technical — it is political and institutional. Indices that capture crop diversity, nutritional output per acre, and ecosystem-service delivery already exist in research literature. Incorporating them into India's official farm classification framework, however, would require deliberate policy intent and inter-departmental coordination across agriculture, environment, and rural development ministries.
Without that shift, three distortions persist:
- Credit and insurance remain calibrated to monoculture logic, leaving polyculture smallholders underserved
- Climate-adaptation funding flows toward large-acreage or single-crop contexts, missing the farmers already practising adaptation
- Farmer status and dignity are defined by land size rather than ecological contribution, discouraging younger farmers from adopting biodiverse systems
The principle at stake is clear: what a system chooses to measure directly shapes what it chooses to support. Until India's agricultural metrics are redesigned to count abundance alongside acreage, farmers like Gangubai will remain invisible to the very programmes meant to help them.
Why it matters
For Indian policymakers and agri-planners, Gangubai's case exposes a structural blind spot: benefit schemes, credit access, and climate-adaptation funding are largely calibrated to land size and monoculture output, leaving multi-species smallholders under-supported and statistically invisible. As erratic monsoons and soil degradation intensify across rain-fed regions, food-forest systems that rebuild soil, conserve water, and spread harvest risk deserve a dedicated measurement and support framework. The immediate question for policymakers is whether crop-diversity indices or ecosystem-service metrics can be integrated into existing farm classification criteria — before another climate season passes without reaching India's most genuinely resilient farmers.
Frequently asked
- What makes Gangubai's farm significant from an agricultural standpoint?
- Gangubai cultivates 42 species of food, fodder, and medicine on a single acre, including toor dal, nachni, turmeric, ginger, nine varieties of leafy greens, and fruit trees such as mango and cashew. This level of biodiversity delivers year-round food security, climate resilience, and soil regeneration — outputs that standard farm metrics do not capture.
- Why is India's 'marginal farmer' classification considered problematic in this context?
- India's farm classification is based primarily on land size. A holder of one acre is labelled marginal regardless of what is grown on it, which means a biodiverse food forest and a neglected plot receive the same designation. This affects credit access, insurance eligibility, and the flow of climate-adaptation support.
- How does a multi-species food forest relate to climate adaptation?
- Diversified food forests spread harvest risk across multiple crops and seasons, reducing total failure under erratic monsoons. Perennial tree cover stabilises the local microclimate, and mixed root systems support soil health, lowering dependence on external inputs. These are precisely the outcomes that formal climate-adaptation programmes aim to achieve.
- What policy change would address this measurement gap?
- Practitioners argue that India's official farm classification framework should incorporate diversity-based indicators — such as number of crop species, nutritional output per acre, or ecosystem-service delivery — alongside acreage. This would require coordination across agriculture, environment, and rural development ministries but would ensure that polyculture smallholders receive appropriate credit, insurance, and programme support.
This is an original IndianAgri report. The analysis and India context are IndianAgri's own.