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首页> 外文期刊>Open Journal of Ecology >Establishing landuse/cover change patterns over the last two decades and associated factors for change in semi arid and sub humid zones of Tanzania
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Establishing landuse/cover change patterns over the last two decades and associated factors for change in semi arid and sub humid zones of Tanzania

机译：建立过去二十年的土地利用/覆盖变化模式以及坦桑尼亚半干旱和半湿润地区变化的相关因素

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This study investigated landuse cover change patterns and established potential environmental and social factors that have contributed to changes in two zones namely sub humid and semi-arid found in southern highland and central parts of Tanzania respectively. The overall objective was to understand change patterns; the process evolves and clearly isolates various factors that have contributed to the changesover the last 20 years. A total of four villages,two in each zone were involved whereby historical land use cover changes were analysed using remote sensing techniques. To do so satellite imageries for1991 and 2011 and those of1986 and 2009 for sub humid and semi-arid zones respectively. Factors for changes were established through focus group discussions (FDGs) with a total of 80 participants (20 per village) and household (HH) interviews subjected to 10% of the total number of HH per village. Both woodlands and bush lands decreased in the expense of mixed farming in both sub humid and semi- arid zones to a maximum of 121% and 146.8% respectively. Wetland farming also increased particular in sub humid zone. In general, both environmental and social factors were found to have contributed to LUCC in various magnitudes in both zones. Such observed change on landuse will continue and it is recommended that there is a need to have in place and implement proper landuse plan also have capacity building programs on climate and land management issues for both livelihood and ecosystem sustainability need to in place.
机译：这项研究调查了土地利用的覆盖变化模式，并确定了潜在的环境和社会因素，这些因素分别导致了在南部高地和坦桑尼亚中部的两个半湿润和半干旱地区的变化。总体目标是了解变更模式。这个过程不断发展，并且清楚地隔离了过去20年中促成变化的各种因素。总共有四个村庄，每个区域中有两个，其中使用遥感技术分析了历史土地用途的变化。为此，分别针对亚湿润和半干旱地区的1991年和2011年以及1986年和2009年的卫星图像。通过焦点小组讨论（FDG）确定了变化的因素，共有80名参与者（每个村庄20名）和家庭（HH）访谈占每个村庄HH总数的10％。在半湿润地区和半干旱地区，林地和灌木林的混合耕作费用分别减少了121％和146.8％。特别是在半湿润地区，湿地农业也有所增加。总体而言，发现环境和社会因素都对这两个区域的LUCC产生了不同程度的影响。这种观察到的土地利用变化将继续下去，建议有必要制定和实施适当的土地利用计划，并就气候和土地管理问题制定能力建设计划，以实现生计和生态系统可持续性。

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