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| 1 | 泰国北部森林、再造林和农业用地碳储量框架(英文)显示文摘估量了泰国不同形式用地类型的碳存储,并且评价了用地类型对碳储量的作用。通过野外采集的数据评估了原始林、再造林和农业用地的地上部分、土壤有机质和健康根系的碳储量。结果表明,森林碳储量(357.62±28.51Mg·ha-1)显著高于再造林(195.25±14.38Mg·ha-1)和农业用地(103.10±18.24Mg·ha-1)。森林土壤有机碳(196.24±22.81Mg·ha-1)也显著高于再造林(146.83±7.22Mg·ha-1)和农田(95.09±14.18Mg·ha-1)。各种用地中碳储量的差异主要是植被生物量和土壤有机质变更的结果。各种用地中的健康根系存储碳仅占碳储量的一小部分。土壤有机碳和根系碳量主要分布在0-40cm的土层间,并且随着土层的增加而降低。森林、再造林和农田中地上部分碳:土壤有机碳:根系碳比率分别是5:8:1,2:8:1和3:50:1。暗示大部分碳量损失是由林业用地转变为农业用地造成的。然而,再造林又可以通过有效回收碳,因为再造林中碳存储水平较高,有利于二氧化碳损失。图1表5参52。 | P. Pibumrung N. Gajaseni A. Popan | 2008 | Journal of Forestry Research2008，19，1： | 6 |
| 2 | Natural Resources Depletion in Hill Areas of Bangladesh:A Review显示文摘Hilly or mountainous terrain occupies around 12% of the area of Bangladesh.Natural resources associated with Bangladesh's hill are forest resources,biodiversity,minerals,and agricultural crops.Natural resources have been exploited in the recent four decades due to excessive clearing of hill forest cover,resulting in loss of species richness, impacts related to increased water flow variability, increased hill slope erosion and flooding intensity, and a gradual decrease in the extent of hill area in Bangladesh.This review explores the major causes and effects of depletion of natural resources by linking drivers,pressures and the related impacts.A review has been conducted to structure the effects on the hilly areas and describe the responses to minimize them in the associated DPSIR framework.Population growth has been identified as a major driver contributing to high deforestation rates.This may negatively effect agricultural productivity and increase the frequency of serious flooding.Slash and burn cultivation also impacts the regeneration of evergreen forests,which may accelerate soil erosion. Due to this and other factors,local people are facing a deficits of natural resources(food,fodder,fuel wood and water),which exacerbates the effects of poverty. Future research should try to facilitate decision making for sustainable utilization of natural resources management in the hilly areas of Bangladesh. Additional conservation measures should be developed to increase the resilience of ecosystems at national and regional levels. | Shampa BISWAS Mark E.SWANSON Harald VACIK | 2012 | Journal of Mountain Science2012，9，2： | 3 |
| 3 | 孟加拉国库克斯巴扎(Cox's Bazar)和兰加马蒂(Rangamati)地区森林区和采伐区土壤属性比较(英文)显示文摘比较了天然林和森林采伐区土壤理化性质,评价了森林采伐对土壤的影响。采集了自然林和邻近的采伐林地三个土层(表层、中层和底层)土壤,对其属性进行了调查。森林土壤颗粒大小分布无显著变化。森林表层土和中层土体积密度存在显著差异。林地内表层土和中层土壤pH、表层土有机质和中层土有效磷均显著高于采伐林地的值。两块林地内可交换Na+和阳离子交换能力没有变化。这些结果表明,两块林地内表层和亚表层土壤变化较明显。森林采伐降低土壤理化性质。 | M.A.Zaman K.T.Osman S.M.Sirajul Haque | 2010 | Journal of Forestry Research2010，21，3： | 0 |
| 4 | 孟加拉吉大港山区Khagrachari的现代和传统农业系统中土壤化学性质(英文)显示文摘由于森林覆盖面积的缩减,制度上的缺陷,人口增加和不合理的山区农业系统等因素,吉大港山区植被严重退化。孟加拉吉大港山区正在实践现代农业体系(如坡地农垦技术),它通过建立生态群落(而非传统轮垦)提高经济产量和生物多样性,这种现代农业体系提供了一种新土地开发策略。本研究对孟加拉吉大港山区Khagrachari的现代和传统农业体系中的土壤化学性质变化进行对比分析。与传统轮耕相比,实行坡地农业耕地技术的土地有较高的生产容量,含有较高的有机碳和有机物。在吉大港山区,通过发展综合农业生态系统建立稳定的生产环境,可以将轮作耕地变为相对稳定的半永久性的农业系统。 | Shampa Biswas Mark E.Swanson Jalal Uddin Md.Shoaib S.M.S.Sirajul | 2010 | Journal of Forestry Research2010，21，4： | 0 |
| 5 | Deforestation effects on biological and other important soil properties in an upland watershed of Bangladesh显示文摘Deforestation occurs at an alarming rate in upland watersheds of Bangladesh and has many detrimental effects on the environment. This study reports the effects of deforestation on soil biological properties along with some important physicochemical parameters of a southern upland watershed in Bangladesh. Soils were sampled at 4 paired sites, each pair representing a deforested site and a forested site, and having similar topographical characteristics. Significantly fewer(p≤0.001) fungi and bacteria, and lower microbial respiration, active microbial biomass, metabolic and microbial quotients were found in soils of the deforested sites. Soil physical properties such as moisture content, water holding capacity, and chemical properties such as organic matter, total N, available P and EC were also lower in deforested soils. Bulk density and pH were significantly higher in deforested soils. Available Ca and Mg were inconsistent between the two land uses at all the paired sites. Reduced abundance and biomass of soil mesofauna were recorded in deforested soils. However, soil anecic species were more abundant in deforested soils than epigeic and endogeic species, which were more abundant in forested soils than on deforested sites. | S.M. Sirajul Haque Sanatan Das Gupta Sohag Miah | 2014 | Journal of Forestry Research2014，25，4： | 0 |
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