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CABI Book Chapter

Tropical deltas and coastal zones: Food production, communities and environment at the land and water interface.

Book cover for Tropical deltas and coastal zones: Food production, communities and environment at the land and water interface.

Description

This book with 33 chapters divided into five parts is a compendium of selected papers from the conference that can be broadly categorized as land and water management, fisheries and aquaculture and rice-based agriculture systems. Intensification of aquaculture and rice-based agriculture frequently produces negative effects that range from environmental degradation to social conflict; managing thes...

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Chapter 19 (Page no: 249)

Crop diversification for improving water productivity and rural livelihoods in coastal saline soils of the Mahanadi Delta, India.

Coastal saline areas are normally monocropped with rice grown during the wet season. On-farm trials were conducted in Ersama block of Jagatsinghpur district, Orissa, India, during 2005-2006 to evaluate the performance of selected non-rice crops in the coastal saline ecosystem during the dry season. In 2005, sunflower, Basella, watermelon, chilli, pumpkin, groundnut, tomato, bitter gourd and okra were evaluated under medium salinity (topsoil ECe 4-7 dS/m) and high salinity (ECe of 10-15 dS/m) in sandy loam soils. In 2006, watermelon, chilli, sunflower, pumpkin, Basella, okra and groundnut were grown under medium salinity (excluding Basella; ECe 2-6 dS/m, except during the latter part of the season) and high salinity (excluding okra and groundnut; ECe 4-8 dS/m, increasing to 16-26 dS/m towards the end of the season) at two locations with sandy loam and clay loam soils. In 2005, all crops performed well under medium salinity, whereas only sunflower and Basella produced reasonable yields under high salinity. The other crops failed because of high soil and groundwater/irrigation water salinity during the early crop growth stages due to prolonged terminal drought in the preceding wet season. In 2006, all crops performed well, but with variable yield, except for sunflower and chilli. The yields of watermelon and pumpkin were especially dependent on irrigation water quality. Across seasons and salinity levels, watermelon, chilli, pumpkin and sunflower were the best-performing dry-season crops based on rice yield equivalent, net return, benefit-cost ratio and water productivity. Okra was the most remunerative crop under medium salinity, although its water productivity was lower than that of watermelon and pumpkin in some cases. The crops tested in this study offer considerable opportunities for the diversification of rice-based systems in saline coastal areas.

Other chapters from this book

Chapter: 1 (Page no: 1) Policy, planning and management at the land-water interface. Author(s): Szuster, B. Hoanh, C. T. Kam, S. P. Ismail, A. M. Noble, A. Borger, M.
Chapter: 2 (Page no: 13) Aquatic resources and environmental variability in Bac Lieu Province (southern Vietnam). Author(s): Baran, E. Chheng, P. Warry, F. Toan, V. T. Hung, H. P. Hoanh, C. T.
Chapter: 3 (Page no: 33) Integrating aquaculture in coastal river planning: the case of Dagupan City, Philippines. Author(s): Andalecio, M. N. Cruz, P. S.
Chapter: 4 (Page no: 48) Evolution of shrimp aquaculture systems in the coastal zones of Bangladesh and Vietnam: a comparison. Author(s): Joffre, O. Prein, M. Tung, P. B. V. Saha, S. B. Hao, N. V. Alam, M. J.
Chapter: 5 (Page no: 64) Ecological risk assessment of an alien aquatic species: a case study of Litopenaeus vannamei (Pacific whiteleg shrimp) aquaculture in the Bangpakong River, Thailand. Author(s): Senanan, W. Panutrakul, S. Barnette, P. Manthachitra, V. Chavanich, S. Kapuscinski, A. R. Tangkrock-Olan, N. Intacharoen, P. Viyakarn, V. Wongwiwatanawute, C. Padetpai, K.
Chapter: 6 (Page no: 80) Ability of Litopenaeus vannamei to survive and compete with local marine shrimp species in the Bangpakong River, Thailand. Author(s): Panutrakul, S. Senanan, W. Chavanich, S. Tangkrock-Olan, N. Viyakarn, V.
Chapter: 7 (Page no: 93) Improving the productivity of the rice-shrimp system in the south-west coastal region of Bangladesh. Author(s): Alam, M. J. Islam, M. L. Saha, S. B. Tuong, T. P. Joffre, O.
Chapter: 8 (Page no: 106) Zooplankton dynamics and appropriate management approach for blue swimming crab in Kung Krabaen Bay, Thailand. Author(s): Tantichaiwanit, W. Gajaseni, N. Piumsomboom, A. Kunsook, C.
Chapter: 9 (Page no: 117) Rebuilding resilient shrimp aquaculture in South-east Asia: disease management, coastal ecology and decision making. Author(s): Bush, S. R. Zwieten, P. A. M. van Visser, L. Dijk, H. van Bosma, R. Boer, F. de Verdegem, M.
Chapter: 10 (Page no: 133) Integrated management of aquatic resources: a Bayesian approach to water control and trade-offs in Southern Vietnam. Author(s): Baran, E. Jantunen, T. Chheng, P. Hoanh, C. T.
Chapter: 11 (Page no: 144) Soil characteristics of saline and non-saline deltas of Bangladesh. Author(s): Saleque, M. A. Uddin, M. K. Salam, M. A. Ismail, A. M. Haefele, S. M.
Chapter: 12 (Page no: 154) Designing resilient rice varieties for coastal deltas using modern breeding tools. Author(s): Ismail, A. M. Thomson, M. J. Vergara, G. V. Rahman, M. A. Singh, R. K. Gregorio, G. B. Mackill, D. J.
Chapter: 13 (Page no: 166) The right rice in the right place: systematic exchange and farmer-based evaluation of rice germplasm for salt-affected areas. Author(s): Singh, R. K. RedoƱa, E. Gregorio, G. B. Salam, M. A. Islam, M. R. Singh, D. P. Sen, P. Saha, S. Mahata, K. R. Sharma, S. G. Pandey, M. P. Sajise, A. G. Mendoza, R. D. Toledo, M. C. Dante, A. Ismail, A. M. Paris, T. R. Haefele, S. M. Thomson, M. J. Zolvinski, S. Singh, Y. P. Nayak, A. K. Singh, R. B. Mishra, V. K. Sharma, D. K. Gautam, R. K. (et al)
Chapter: 14 (Page no: 183) Rice varieties and cultural management practices for high and sustained productivity in the coastal wetlands of southern Bangladesh. Author(s): Salam, M. A. Islam, M. R. Rahman, M. S. Rahman, M. A. Bhuiyan, M. A. R. Seraj, Z. I. Aditya, T. L. Uddin, M. K. Mondal, M. K. Ismail, A. M. Adorada, D. L. Mendoza, R. D. Tumimbang-Raiz, E. B. Gregorio, G. B.
Chapter: 15 (Page no: 199) Boro rice for food security in coastal West Bengal, India. Author(s): Roy, S. K. B.
Chapter: 16 (Page no: 209) Strategies for improving and stabilizing rice productivity in the coastal zones of the Mekong Delta, Vietnam. Author(s): Lang, N. T. Buu, B. C. Viet, N. V. Ismail, A. M.
Chapter: 17 (Page no: 223) Diversified cropping systems in a coastal province of the Mekong Delta, Vietnam: from testing to outscaling. Author(s): Ni, D. V. Phat, T. D. Lu, T. Tung, P. B. V. Ben, D. C. Vu, D. H. Thai, P. H. Giang, P. H. Tuong, T. P.
Chapter: 18 (Page no: 239) Improving rice productivity in the coastal saline soils of the Mahanadi Delta of India through integrated nutrient management. Author(s): Mahata, K. R. Singh, D. P. Saha, S. Ismail, A. M. Haefele, S. M.
Chapter: 20 (Page no: 264) Water supply and demand for dry-season rice in the coastal polders of Bangladesh. Author(s): Mondal, M. K. Tuong, T. P. Sharifullah, A. K. M. Sattar, M. A.
Chapter: 21 (Page no: 279) An analysis of environmental policy strategies for coastal land conservation in Thailand. Author(s): Pongthanapanich, T.
Chapter: 22 (Page no: 293) Conflicts and governance: perspectives on an eastern and western coastal wetland in India. Author(s): Narayanan, N. C.
Chapter: 23 (Page no: 307) Farmers' assessment of resource management and farm-level technological interventions in the Mekong Delta, Vietnam. Author(s): Can, N. D. Khiem, N. T. Hossain, M. Tuong, T. P.
Chapter: 24 (Page no: 320) Assessing needs, constraints and livelihood opportunities in coastal saline environments: a case in Orissa, India. Author(s): Paris, T. R. Saha, S. Singh, D. P. Mahata, K. R. Cueno, A. delos R. Zolvinski, S. Ismail, A. M.
Chapter: 25 (Page no: 335) Participatory management of coastal resources: a case study of Baganchra-Badurgacha subproject in the South-west of Bangladesh. Author(s): Islam, M. N. Rinfret, J. R. Islam, Q. R.
Chapter: 26 (Page no: 350) Learning to build resilient coastal communities: post-tsunami recovery in Sri Lanka and Indonesia. Author(s): Larsen, R. K. Thomalla, F. Miller, F.
Chapter: 27 (Page no: 367) Social vulnerability to coastal hazards in South-east Asia: a synthesis of research insights. Author(s): Zou, L. Thomalla, F.
Chapter: 28 (Page no: 384) An extended hydrological classification for mangrove rehabilitation projects: a case study in Vietnam. Author(s): Dijksma, R. Loon, A. F. van Mensvoort, M. E. F. van Huijgevoort, M. H. J. van Brake, B. te
Chapter: 29 (Page no: 398) Coastal transects analysis of Chao Phraya Delta, Thailand. Author(s): Chuenpagdee, R. Traesupap, S. Juntarashote, K.
Chapter: 30 (Page no: 409) Mangrove system sustainability: public incentives and local strategies in West Africa. Author(s): Cormier-Salem, M. C. Bernatets, C. Sarr, O.
Chapter: 31 (Page no: 422) Assessing the impact of small-scale coastal embankments: a case study of an LGED polder in Bangladesh. Author(s): Chowdhury, A. K. M. Jenkins, S. A. M. Hossain, M.
Chapter: 32 (Page no: 436) Dynamics of livelihoods and resource use strategies in different ecosystems of the coastal zones of Bac Lieu Province, Vietnam. Author(s): Khiem, N. T. Hossain, M.
Chapter: 33 (Page no: 448) Utilization of aquatic resources along the North Brazilian coast with special reference to mangroves as fish nurseries. Author(s): Saint-Paul, U. Barletta, M.