尽管饱受艾滋病和诸多其它疾病的蹂躏，但是非洲人口仍在继续增长并超过这块大陆生态环境的承载能力。
Despite the ravages of AIDS and a plethora of other diseases Africa's populations continue to outstrip the carry capacity of the continental resource base.
本文正是基于以上目的，研究长江流域内生态环境需水量及流域内水资源的承载能力。
This paper is just based on above purposes to study water resources carrying capacity and ecological environmental water requirements of Yangtze River basin.
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