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Yadav Sudhir Mondal Manoranjan K. Shew Aaron Jagadish S. V. Krishna Khan Zahirul Haque Sutradhar Asish Bhandari Humnath Humphreys Elizabeth Bhattacharya Jayanta Parvin Rokhsana Rahman Mahabubur Chandna Parvesh 《Paddy and Water Environment》2020,18(2):331-343
Paddy and Water Environment - Most of the lands of the southern coastal zone of Bangladesh are protected from tidal flooding and storm surges by embankments constructed during the 1960s and 1970s,... 相似文献
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Rahman M. Motiur Yasushi Furukawa Isao Kawata Mohammed Mahabubur Rahman Mahbubul Alam 《Journal of Forest Research》2006,11(2):89-97
Empirical information regarding the role of homestead forests in household economy is essential in understanding the importance
of these resources. Identification of the factors that affect homestead forest production and understanding forest owners'
attitudes toward key forest management issues have great significance in making appropriate policy responses to manage these
resources on a sustainable basis. In Bangladesh, homestead forests are claimed to play an important economic role in rural
livelihoods, but no reliable quantitative information exists. This study was undertaken to investigate the role of homestead
forests in the household economy, examine if forest production and income vary across landholding size classes, to explore
the relationships of homestead forest production with species richness, education level, and household size, and to assess
the attitude of homestead forest owners toward key forest management issues. Results show that homestead forests contribute
15.9% of the household income and generate 51.4 man-days of employment per household per year. Production of homestead forests
significantly varies across landholding size classes. It was observed that forest production depends significantly on species
richness of homestead forests and the education level of forest owners. However, no such relationship was found between forest
production and household size. The study revealed that farming families depend more on forest income than nonfarming families.
Attitudes of forest owners toward key forest management issues differ significantly across landholding size classes. For example,
although the majority of the forest owners prefer fruit species to timber species, the percentage of respondents decreased
as the landholding size class increased, while the opposite trend was observed for timber species. The findings of this study
suggest that diversification of forests and extension of education amongst forest owners would improve forest production.
Furthermore, forest policy should address the concerns of the forest owners in different landholding classes and focus on
their specific requirements to enhance sustainable forest management. 相似文献
3.
Copper fungicide residues in Australian vineyard soils 总被引:2,自引:0,他引:2
Wightwick AM Mollah MR Partington DL Allinson G 《Journal of agricultural and food chemistry》2008,56(7):2457-2464
Copper (Cu) concentrations were measured in Australian vineyard soils to assess the extent and magnitude of Cu accumulation resulting from the use of Cu-based fungicides and to indicate the likely risks to long-term soil fertility. Soil samples were collected from 98 vineyards across 10 grape-growing regions of Australia and analyzed for total Cu concentrations. Ninety-six percent of vineyards surveyed had elevated Cu concentrations in soil compared to the background Cu concentrations in nearby soil in its native state. Concentrations of total B, Co, Cr, Pb, and Zn were similar to background concentrations and below reported toxicity guideline values. Cu concentrations in Australian vineyard soils were generally much lower (6-150 mg kg (-1)) than those reported in the soils of vineyards in parts of Europe (i.e., 130-1280 mg kg (-1)). Concentrations of total Cu were generally below those concentrations reported to cause lethal effects to soil invertebrates; however, Cu exceeded concentrations known to cause sublethal effects (i.e., inhibit growth, affect reproduction, induce avoidance behavior) to those (or related) invertebrates. 相似文献
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Md. Motiur Rahman Yasushi Furukawa Isao Kawata Mohammed Mahabubur Rahman Mahbubul Alam 《Small-Scale Forestry》2005,4(3):359-376
This study examines the species composition, diversity and economic importance of homestead forests in the household economy
of central Bangladesh. The study documents 57 homestead forest species and their main usage in 90 households across three
villages of Gazipur Sadar Upazila. Homestead forests in Bangladesh comprise a mixture of fruit, timber and bamboo species.
While superficially homestead forestry appears unimportant in rural livelihoods, in reality the contribution is huge, both
as a source of food security and for other necessary household materials. A clear understanding of the physical characteristics
and economic role of homestead forests in rural livelihoods is vital for ensuring sustainable resource management. Income
and production of homestead forestry on a per hectare basis are found to vary widely between landholding size classes. Significant
relationships are identified between forest performance (production and income) and species richness and education level.
Homestead forestry appears to be a potential subsistence income generating land-use practice in the study area. The economic
scope of homestead forestry can be further enhanced provided the appropriate species composition of the forest is achieved
and the education of forest owners is ensured through targeted management and policy interventions. 相似文献
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