This 25 years study on the changes of coastal zones from Chittagong to Cox’s Bazar along the Bay of Bengal studied changes of water-flow and the flora and fauna of the estuaries of the Karnaphuli, Halda, Sangu and Matamuhuri rivers, which flow down from the adjacent Chittagong Hill Tracts (CHT) and Arakan Lusai Hills. The hydroelectric dam on the Karnafuli River damaged 700 km² of hill forests and caused mass migration of tribal people.
Human pressure, deforestation, pollution, upstream dams, flatland cultivation practices, shrimp culture and unplanned infrastructures cause major causes to the coastal zones and adjacent hills. Destruction of mangroves of Chokoria Sundarbans and Cox’s Bazar are the result of shrimp culture. About 91% of the perennial streams of the Chittagong and CHT have lost their dry season flows, resulting in a serious water crisis. Discharge of effluents from the shrimp hatcheries, digging of shrimp ponds and hill-cuttings have caused erosion. The sea current has already damaged 3.4km of sea shore from Kolatoti to Himchari in Cox’s Bazar. Continue reading
The fertile alluvial plain of the Ganges, Brahmaputra and Meghna rivers of Bangladesh and Eastern India is densely populated and very rich with diversified flora and fauna having specific association and adaptation. The river systems have provided great opportunities with fertile land, mangroves, biodiversity, scenic beauty, ports, industries, tourists’ spots, coastal resources, minerals and transportation. Evergreen and semi-deciduous forests, wetlands; estuaries of this tropic have wet and dry monsoons enriched with the biodiversity and scope for wide range adaptation. The rural home-based multidisciplinary farming is traditionally maintained for thousands of years. Homes are specially designed for all activities; having houses, cowshed, a pond, forest-grove and a garden, the basis of present “permaculture” worldwide. In Bangladesh, about 70% of 165 million people living in the rural areas are dependent on agriculture. Villagers are simple, warmhearted but hardworking; lead nice and coordinated organic life. Multiple and multi-storied cropping culture is being maintained traditionally according to their habit, habitats and adaptation to maximize production and land-use. Short-cycle biomass recycling is practiced to maintain the soil health. WWOOF Bangladesh provides scope for the volunteers and host-farmers, can share knowledge and create bondage of organic minds.
The paper was presented in the 17th IFOAM Organic World Congress and WWOOF International Conference in South Korea in September 26-October 1, 2011
Roads and highways comprise 20,947.73 km of which national highways: 3,478.42, regional highways: 4,221.52 km and roads 13,247.79 km have occupied a significant arable land of the country. Roads and highways are constructed mostly above the normal flood level. Considering width 2 m X2 for the highways and 1 m X2 for the roads, the total available land area along the roads and highways stands 5,730 hectare can be utilized with Permaculture. Other than these, there are huge road networks throughout the country where we can grow some crops for the benefit of our livelihoods and food security.
Permaculture means intensive cropping without disturbing or damaging the natural habitat and biodiversity and is widely practiced in the modern world for growing crops with little or no disturbance of the soil and landscape using little or no tillage practice. It is also called as sustainable agriculture, organic farming, and very recently Climate-smart agriculture. Continue reading
Permaculture is a widely used termed by the modern world. Permaculture means permanent culture especially, cropping without disturbing or damaging the natural habitat and biodiversity. It is the practice for growing crops with little on no disturbance of the soil and landscape by little or no tillage practice. It is also called as sustainable agriculture, organic farming, and very recently Climate-smart agriculture. Continue reading
Bangladesh occupies an area of 144,863 km². The hilly areas cover about 17,342 km² mostly in the Chittagong Hill Tracts districts, Chittagong, Habigonj and Moulvibazar. Hills constitute about 12 per cent of the total area of Bangladesh. Chittagong Hill Tracts districts alone covers 13,184 km² which is about 9%. Based on geology and landform, the hills of Bangladesh may broadly be subdivided as: High hill ranges (about 70%) and Low hill areas (about 30%). The high hill ranges, about 200-1,000 m above mean sea level (msl), are steep to very steep hills and usually have a rather youthful soil mantle ranging from a few cm to several metres in thickness over bedrocks. In contrast, the low hill areas, about 15-200 m above msl are nearly flat or rounded topped and usually have old and deep soil. The whole hilly region receives more than 2000 mm precipitation annually about 80% of which receives in 4 months (June-September) and the region was covered by tropical climax forest with diversified flora and fauna just a century back. Continue reading
Bandarban Hill District is one of the most potential resourceful regions of Bangladesh. The hills are not very old but in the vicinity of the Bay of Bengal they receive huge monsoon rainfall and have high water tables.
Many indicator plants like wild bananas, terrestrial orchids, ferns, Lycopodiums, Tara and arums are growing luxuriantly even on the hilltops. High hills, rivers and natural lakes and springs are the most attractive places for the tourists. Twelve different tribes including Bengalis of different religions are leaving there peacefully for a long time. Continue reading
Agriculture needs a significant transformation to meet the challenges of achieving climate change adaptation and food security. Based on population growth and consumption patterns, projections indicate that agricultural production will have to increase at least 70% to meet the demands by 2050. Estimation indicates that climate change is likely to reduce agricultural productivity, production stability and incomes in some areas that already have high levels of food insecurity. Thus, development of sustainable agriculture is crucial to achieve future goals on climate change and food security. Agricultural productivity varies on climatic regions; therefore, knowledge about management of landscape, habit and habitats of plants and animals are the critical factors for adaptation and sustainable agriculture. This paper investigates into some of the key scientific and technical responses and ecosystem services required to have sustainable agriculture. Biodiversity is the root of plenty and provides greater scope for agriculture in the quickly changed climatic conditions. This paper outlines a range of practices, approaches and tools aimed at increasing the resilience and productivity of agricultural production systems, while also reflects light on reducing and removing emissions. It also considers current scientific knowledge and financial gaps and makes innovative suggestions regarding the combined use of different sources and dissemination of appropriate knowledge of adaptations to cope with the climate change Continue reading
In 2009, about 4.5 million cows, 10 million goats, 82,000 buffaloes 0.3 million sheep were sacrificed during Eid-ul-Azha in Bangladesh. About 80% were slaughtered in the city and municipalities and more than one-third of the total were sacrificed in greater Dhaka city alone. According to the statement of Tannery Owners Association, this year in 2010 the number of sacrificed animals has increased significantly; may be double of last year. They also added that due to Anthrax-phobia the slaughter was less in last six months, as a result a big influx of cattle arose and thus the availability of cows was remarkable. Moreover, better security, easy transportation, smooth banking facility and fewer disturbances from the muggers, the Kurbani market was flourished. Continue reading
At last it has come to the notice that “Nearly 500 trees have died in the Bashundhara residential area, 20 around the Baridhara Lake, 25 near the Sher-e-Bangla Agricultural University and ten more at the Farmgate Park”.
What about the others in Uttara, Ashulia and other part of the city?
Thousands of rain-trees, acacias died in many areas of the city nobody raised the question of such dying of plants. In 2003-2005, many big rain-trees died in Chittagong (Polo-ground and CRB etc.). Some Nageshwars and Acaias died in Cantonment area. Thousands of Sissoo died after 1988 floods throughout Bangladesh especially along the roadsides of floodplains. Who cares for them? Continue reading
The behavior of tea roots was investigated. A great territorial and spatial behavior of has been observed among the tea plants (Camellia sinensis (L) O. Kuntze) sub-species assamica. Roots exhibit a good natural habit of adaptation for wet and dry seasons with a distinct triple storey behavior spreading in top soil, and in wet and dry season-water available zones. Tea roots are quite deep rooted and good spreading of roots was observed at a depth of 4.15 meter. An antagonistic behavior also was observed with newly in-filled tea plants from the neighboring existing older plants which is found as the most important reasons for failure of in-fills in the mature and older tea plantations. These behaviors are influencing rehabilitation of teas and establishment of new tea plants.
Abstract submitted to: The Conference on Engineering, Research, Innovation and Education: January 11-12, 2011; School of Applied Sciences and Technology, Cheap Jerseys from china Shahjalal University of Science and Technology, Sylhet, Bangladesh
Please read the book “Improvement of Tea: Environment and Cultural Practices”: Plantation crops and Organic Farming Research Articles Series:-4 ISBN 984-300-002885-5