Soil samples were collected and analyzed from 25 sites of three hilly regions （Rangamati, Banderban and Khagrachari） for an understanding of the impact of denudation and land use on soils in Chittagong Hill Tracts, ...Soil samples were collected and analyzed from 25 sites of three hilly regions （Rangamati, Banderban and Khagrachari） for an understanding of the impact of denudation and land use on soils in Chittagong Hill Tracts, Bangladesh. There were natural forests, bushy land, slashed sites, slashed and burnt sites, and the sites prepared for shifting cultivation, one year after shifting cultivation and two years after shifting cultivation. The soils were generally yellowish brown to reddish brown, sandy to sandy clay loam, strongly acid, and well to excessively drained on steep slopes with considerable variation among the sites and land use categories. Bulk density was the highest in sites of one year after shifting cultivation （1.52 g·cm^-3） and the lowest in forested sites （1.38 g·cm^-3）. Water holding capacities were, however, statistically similar in all sites. Organic carbon varied from 0.54% （slashed and burnt sites） to 1.55% （forested sites） and total N ranged from 0.05% （shifting cultivation for one year） to 0.13% （forested sites）. Available phosphorus （Bray ＆ Kurtz-2 P） was the maximum in forested sites （12.32 mg·kg^-l）, and it did not differ significantly in other sites. Contents of available Ca, Mg and K were also higher in the bushy lands and forested sites than cleared and shifting cultivated sites.展开更多
An exploratory survey was conducted to assess economic profitability of cane based furniture enterprises in Chittagong City Corporation area of Bangladesh. A multistage random sampling was adopted to carry out the stu...An exploratory survey was conducted to assess economic profitability of cane based furniture enterprises in Chittagong City Corporation area of Bangladesh. A multistage random sampling was adopted to carry out the study. Based on the total investment the enterprises were divided into large, medium and small.. Most of the entrepreneurs （55%） are in the age class 40-50 years and only （18.33%）are ＞50 years. In small and medium category lowest entrepreneurs （8.33% each） are found graduate and 18.33% in large farm. Most of the enterprises are in the small category （45%） and 66.67% labors are skilled whereas only 33.33% are unskilled. Seven articles of sixteen different sizes were identified made from cane, which are Sofa （45 cm × 45 cm, 50 cm × 50 cm and 55 cm × 55 cm）, Dinning （4ch. 1tab,and 6ch. 1tab.）, Bed （1 m × 2m, 1.3 m × 2.3 m and 1.5 m × 2.3 m）, Chair （45 cm × 45 cm and 50 cm ×50 cm）, Rocking chair （large size,medium and small size）, Dolna （Hanging and Running） and Partition. In all the three category enterprises chair （45 cm × 45 cm） was produced in highest number and the lowest production was Bed （1.5 m × 2.3 m）. The total net benefit （2089 US$） and benefit cost ratio （1：16）was the highest for large cane enterprises. So among three categories of the cane enterprises the large enterprises are more profitable than others.展开更多
文摘Soil samples were collected and analyzed from 25 sites of three hilly regions （Rangamati, Banderban and Khagrachari） for an understanding of the impact of denudation and land use on soils in Chittagong Hill Tracts, Bangladesh. There were natural forests, bushy land, slashed sites, slashed and burnt sites, and the sites prepared for shifting cultivation, one year after shifting cultivation and two years after shifting cultivation. The soils were generally yellowish brown to reddish brown, sandy to sandy clay loam, strongly acid, and well to excessively drained on steep slopes with considerable variation among the sites and land use categories. Bulk density was the highest in sites of one year after shifting cultivation （1.52 g·cm^-3） and the lowest in forested sites （1.38 g·cm^-3）. Water holding capacities were, however, statistically similar in all sites. Organic carbon varied from 0.54% （slashed and burnt sites） to 1.55% （forested sites） and total N ranged from 0.05% （shifting cultivation for one year） to 0.13% （forested sites）. Available phosphorus （Bray ＆ Kurtz-2 P） was the maximum in forested sites （12.32 mg·kg^-l）, and it did not differ significantly in other sites. Contents of available Ca, Mg and K were also higher in the bushy lands and forested sites than cleared and shifting cultivated sites.
文摘An exploratory survey was conducted to assess economic profitability of cane based furniture enterprises in Chittagong City Corporation area of Bangladesh. A multistage random sampling was adopted to carry out the study. Based on the total investment the enterprises were divided into large, medium and small.. Most of the entrepreneurs （55%） are in the age class 40-50 years and only （18.33%）are ＞50 years. In small and medium category lowest entrepreneurs （8.33% each） are found graduate and 18.33% in large farm. Most of the enterprises are in the small category （45%） and 66.67% labors are skilled whereas only 33.33% are unskilled. Seven articles of sixteen different sizes were identified made from cane, which are Sofa （45 cm × 45 cm, 50 cm × 50 cm and 55 cm × 55 cm）, Dinning （4ch. 1tab,and 6ch. 1tab.）, Bed （1 m × 2m, 1.3 m × 2.3 m and 1.5 m × 2.3 m）, Chair （45 cm × 45 cm and 50 cm ×50 cm）, Rocking chair （large size,medium and small size）, Dolna （Hanging and Running） and Partition. In all the three category enterprises chair （45 cm × 45 cm） was produced in highest number and the lowest production was Bed （1.5 m × 2.3 m）. The total net benefit （2089 US$） and benefit cost ratio （1：16）was the highest for large cane enterprises. So among three categories of the cane enterprises the large enterprises are more profitable than others.
