Bailis, Robert

Baka, Jennifer

Jain, Grishma

Shenoy, Megha

English

LSE Research Online

  Jennifer Baka, Rob Bailis, Grishma Jain and Megha Shenoy Marginal lands and biofuels: a comparative MEFA of India’s wastelands  Conference Item (Poster)     Original citation: Originally presented at Gordon Research Conference for Industrial Ecology, 17th-22nd June 2012, Les Diablerets Conference Center, Les Diablerets, Switzerland.  This version available at: http://eprints.lse.ac.uk/53053/  Available in LSE Research Online: Oct 2013  © 2012 The Authors   LSE has developed LSE Research Online so that users may access research output of the School. Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Users may download and/or print one copy of any article(s) in LSE Research Online to facilitate their private study or for non-commercial research. You may not engage in further distribution of the material or use it for any profit-making activities or any commercial gain. You may freely distribute the URL (http://eprints.lse.ac.uk) of the LSE Research Online website.     Jenn Baka, Yale FES, jennifer.baka@yale.edu, Rob Bailis, Yale FES, robert.bailis@yale.edu, Grishma Jain, ROI, grishma@roi-online.org, Megha Shenoy, ROI, megha@roi-online.org   Abstract: India’s current biodiesel policy mandates the use of non-edible oilseed feedstocks such as Jatropha curcas grown exclusively on wastelands, a government classification of marginal lands. However, existing biomass stocks from wastelands, principally Prosopis juliflora, currently support robust rural and industrial energy economies. Using a material and energy flow accounting (MEFA) framework, we find that India’s current Prosopis economy has a 10-90 times greater energy return on investment (EROI) than a Jatropha economy. Approximately 56% of industries using Prosopis would close down or move elsewhere if faced with a Prosopis shortage. Lastly, the Prosopis economy provides nine months of annual employment for rural laborers while Jatropha provides about 15 days per year. Thus, as currently designed, India’s biofuel program may perversely impact energy security and rural welfare if Jatropha replaces Prosopis.  Background: Jatropha, Wastelands & Prosopis Marginal Lands & Biofuels: A Comparative MEFA of India’s Wastelands Methods & Fieldsite Findings Jatropha is a drought-tolerant shrub commonly found across the Global South. Its oil-rich, inedible seeds can be used as a feedstock for biodiesel. As result, Jatropha promoters tout its ability to improve energy security and environmental quality while minimizing threats to food security. According to a 2008 global market survey, ~900,000 ha of Jatropha is cultivated worldwide with over 400,000 ha in India (GEXSI 2008).         Fig. 1a Fig. 1b India’s National Biofuel Policy (2009) mandates the use of non-edible oilseeds grown on wastelands. The National Wasteland Atlas, consisting of 23 classifications, estimates ~15% (47.22 M ha) of India’s total geographic area (TGA) is wasteland. According to key stakeholders, scrublands are the most likely category for biofuel cultivation (18.5 M ha; 5.84% of TGA; 39% of total wasteland area; largest single category).  Methods: Comparative Material and Energy Flow Analysis (MEFA) Three components: • MFA • EFA • EROI (land use change metric)  Fuelwood 7.8 kt/yr 4.8% of total annual use N=23,141       Fieldsite: Sattur taluk, Tamil Nadu, India Scrublands are often covered with Prosopis juliflora. Prosopis biomass is currently used as a household fuelwood, as a feedstock for electricity generation and charcoal production and as an energy source for industries such as bricks, paper and match making. Fig. 2a Fig. 2b Fig. 3a Sources: Fig. 1a: Baka photos, Fig. 1b: GEXI, 2008; Figs. 2a&b: NRSA, 2010; Fig. 3a: Baka photos. Charcoal 11.5 kt/yr  7.1% of total annual use N=121   Fig. 4a Bricks 15.4 kt/yr 9.5% of total annual use N=125         EROI=(useful energy output +by-products)/inputs    Fig. 7a Metric Value Source Population (#) 156,968 Census of India, 2001 Households (#) 41,087 Census of India, 2001 Villages (#) 60 Census of India, 2001 Average Rainfall (mm/yr) 830 Virudhunagar Statistical Handbook, 2009 Main crops Maize, cotton, grams, pulses Virudhunagar Statistical Handbook, 2009 Total Geographic Area (TGA) (ha) 45,749 Virudhunagar Statistical Handbook, 2009 Prosopis area (ha) 16,537 Estimated Prosopis area (%) 36.2% Calculated Sattur Demographics Fig. 5a Current Prosopis Usage: 162.1 ktonnes (kt)/yr Power Plant 89.3 kt/yr 55.1% of total annual use N=1   Paper 33.8 kt/yr 20.8% of total annual use N=5         Other* 4.3 kt/yr 2.7% of total annual use N=228              Fig 6a Fig 6b Fig 6c Fig 6d Fig 6e Fig 6f *Other includes match factories (pictured), eateries, and oil mills. 103 Prosopis Jatropha S0=10 S1=1 S2=3 S3=2 S4=4 Jatropha scenarios: S0= no inputs or by-product use; S1=inputs only; S2=inputs and Jatropha by-products; S3=inputs and Prosopis uprootings; S4=inputs, Jatropha by-products and Prosopis uprootings. Energy Security Comparison       Fig. 8a Industrial users:  What would you do if faced with a Prosopis shortage or Prosopis price spike?   • Rural households will likely accelerate usage of LPG.  • India currently imports 76% of its fossil fuel needs.  • 53% of Indian population still lives in rural areas. Social Ecology Dimension: Labor Impacts Prosopis Jatropha Laborers (per ha) 14 • Male: 11 • Female: 3 2 Male: 0 Female: 2 Labor duration (days per year) 216 15 Wages (Rs/day) Male: Rs. 200 Female: Rs. 150 Male: NA Female: Rs. 100 Fig. 9b: Prosopis coppicing crew Fig. 7c: Jatropha harvester Fig. 9a Conclusions India’s wastelands are not empty, unproductive spaces. •Prosopis system less material intensive and more locally concentrated than Jatropha. •Prosopis system EROI is 10-90 times greater than Jatropha system. •Replacing Jatropha with Prosopis may perversely impact energy security by increasing imports of LPG. •Replacing Prosopis with Jatropha may perversely impact rural welfare by reducing employment opportunities for the landless poor and by causing industries to close or move.  Study Limitations/Future Research Areas • MEFA framework excludes: • Health impacts of fuelwood usage. • Water impacts of Prosopis and Jatropha usage. • Invasiveness potential of Prosopis and Jatropha and the resultant impacts on biodiversity. 

Marginal lands and biofuels: a comparative MEFA of India’s wastelands

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