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Impacts of Human Activities on the Climate of Northern Zambia

机译:人类活动对赞比亚北部气候的影响

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The potential of human induced surface changes such as deforestation and land-use change in altering the local natural environment conditions have been noted in recent years. There is general agreement that these changes in the tropics have lead to a net release of C to the atmosphere in the range of 1.1 to 1.2 pq cy-1.In most parts of Zambia, land -use activities such as deforestation are a major threat to the natural environment and can significant modify the climate. It is estimated that that about 200,000 ha forests are destroyed every year in Northern province of Zambia due to some traditional farming locally known as Chitemene. This is a semi -shifting cultivation, which involves temporary or permanent clearance of the forest for agriculture or other purpose. Although the practice is slowly dying out as the campaign for moderm farming intensifies, the destruction made to the natural forest for many years has had a significant contribution to large scale deforestation and global warming.The purpose of this study is to investigate the marked climatic change that has occurred over Northern Zambia ecosystems both in rainfall and temperature parameters for the past decades. Climatological data of temperature and rainfall during the period 1960 through 2003 for five stations were considered. The result generally showed increased temperature over the decades and decrease in rainfall.The paper is illustrated with tables and figures that complete the information.
机译:近年来,已经注意到人类诱导的表面变化的潜力,例如改变局部自然环境条件的砍伐和土地使用变化。有一般同意,热带地区的这些变化导致C的净释放到大气层的范围为1.1至1.2 pq cy 1。在赞比亚大部分地区,森林砍伐等土地使用是一种重大威胁到自然环境,可以重大改变气候。据估计,由于一些传统的农业作为Chitemene,大约200,000次海森省每年在北部赞比亚摧毁。这是一个半挑选的种植,涉及森林的临时或永久性农业或其他目的。虽然实践正在慢慢消亡,作为模具养殖的竞选加剧,但对自然森林多年来的破坏对大规模森林砍伐和全球变暖产生了重大贡献。本研究的目的是调查显着的气候变化在过去的几十年中,在北赞比亚北部生态系统中发生了北部的北部生态系统。考虑了在1960年代至2003年期间的温度和降雨量的气候数据。结果通常显示出几十年的温度增加,降雨量减少。纸张用填写信息的表格和数字说明。

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