Bangladesh is a low-lying deltaic country situated in South Asia at the confluence of the Ganges (Padma), Brahmaputra (Jamuna), and Meghna river systems, forming one of the largest and most dynamic river delta systems in the world. Its landscape is predominantly composed of extensive alluvial floodplains, with elevations generally less than 12 meters above sea level, except for the southeastern Chittagong Hill Tracts, which introduce a contrasting region of hilly terrain and forested uplands. The geomorphology of the country is continuously shaped by fluvial processes, including sediment deposition, channel migration, and seasonal flooding driven by monsoonal rainfall and Himalayan snowmelt. A dense network of rivers, distributaries, wetlands, and flood basins dominates the physical environment, creating highly fertile soils but also making the region extremely vulnerable to flooding and riverbank erosion. The climate is tropical monsoon in nature, characterized by high temperatures and humidity throughout the year, with a pronounced rainy season from June to October when the southwest monsoon brings intense precipitation. The interaction between monsoonal rainfall and coastal exposure to the Bay of Bengal results in frequent natural hazards, including riverine floods, tropical cyclones, and storm surges, all of which strongly influence settlement patterns, agriculture, and infrastructure development.
The historical development of Bangladesh is closely linked to the wider history of Bengal, a region that has long served as an important center of agriculture, trade, and cultural exchange in South Asia. In ancient times, Bengal formed part of major Indian empires such as the Maurya and Gupta empires, followed by regional powers like the Pala Empire, which contributed significantly to Buddhist learning and artistic traditions. From the 13th century onward, Bengal came under Islamic rule through the Delhi Sultanate and later evolved into the independent Bengal Sultanate, during which it became a prosperous hub of maritime and inland trade within the Indian Ocean economy.
Under Mughal rule, Bengal reached a high level of economic productivity, particularly in agriculture and textile manufacturing, with its muslin and silk industries gaining global recognition. British colonial rule beginning in the 18th century integrated Bengal into global trade networks, with jute emerging as a major cash crop, while also restructuring traditional agrarian systems. Following the partition of British India in 1947, East Bengal became East Pakistan, but persistent political, linguistic, and economic inequalities led to widespread unrest. This culminated in the Bangladesh Liberation War of 1971, after which Bangladesh emerged as an independent sovereign state.
Agriculture remains the backbone of Bangladesh’s economy and is deeply shaped by the deltaic environment and monsoonal hydrology. Rice is the dominant staple crop and is cultivated in multiple seasonal cycles adapted to flooding and irrigation conditions. Jute, often referred to as the “golden fiber,” is another important crop grown in fertile alluvial soils, alongside wheat, pulses, vegetables, sugarcane, and various fruits. Agricultural productivity depends heavily on natural processes such as floodplain sediment deposition, groundwater recharge, and seasonal water availability, making the system both highly fertile and highly climate-sensitive. However, the sector faces ongoing challenges from flooding, drought in certain regions, and increasing salinity intrusion in coastal areas due to sea-level rise and reduced freshwater flow.
Fisheries constitute a major component of Bangladesh’s food security and rural livelihoods, supported by an extensive and interconnected network of rivers, wetlands, floodplains, and coastal waters. Inland fisheries dominate production, with species such as carp and hilsa being particularly significant both economically and culturally. Aquaculture, especially pond-based fish farming, has expanded rapidly and now contributes substantially to national fish production. The productivity of fisheries is closely linked to seasonal hydrological cycles, nutrient exchange during flooding, and estuarine productivity in the Bay of Bengal, making the sector highly sensitive to environmental change and water management practices.
Forestry in Bangladesh is limited in extent but ecologically important. The most significant forest ecosystem is the Sundarbans mangrove forest in the southwest, the largest continuous mangrove forest in the world, which provides critical ecosystem services such as coastal protection, carbon storage, and habitat for diverse wildlife including the Bengal tiger. In addition, the Chittagong Hill Tracts contain tropical evergreen and semi-evergreen forests, though these areas are increasingly fragmented due to population pressure and land-use change. Social forestry and reforestation programs have been introduced to improve tree cover and support rural livelihoods, but forest ecosystems continue to face pressures from deforestation, climate change, and human encroachment.
Gerold was 2001 first time in Bangladesh. Prof. Raisul Alam from the Agricultural University BAU had invited him to Mymensingh in the north of the country. He was there for two weeks, gave a few lectures, got to know the poverty but also the dignity and friendliness of the country under the conditions of the monsoon. Have made a trip north to Rangpur to the Indian border. Very beautiful country, little touristic and therefore very special. In 2005, Gerold and Klaudia were together in Bangladesh. They visited a bilateral research project with BAU, where it was about the use of woody plants for feeding animals. We were first in Mymensingh and then in Cox's Bazaar in the south. We also got to know Dhaka well with our travel companions Raisul and his wife Sultana.