青藏高原东北缘地带50多年来农业生态经济系统可持续发展分析
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Sustainable Development of Agricultural Eco-system in the Northeast Margin Strip of the Qinghai-Tibet Plateau During more than 50 Years
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    摘要:

    以能值理论为基础,对四川省阿坝自治州1952—2005年的农业生态经济系统的能值投入、产出状况进行了定量分析,并把分析结果和其它地区进行了比较。结果表明,由于20世纪阿坝州对天然林的过度采伐,其生态环境受到严重破坏;随着"林木经济"的结束,生态旅游的兴起,阿坝州的生态环境状况在逐渐好转。但阿坝州农业生态经济系统仍存在一些问题。现代化辅助能投入严重不足,生产模式原始落后,农业的发展建立在自然资源过度利用的基础上,发展仍有不可持续的危险。因此必须通过加大农业科技的研究和推广力度,提高劳动者素质,才能充分利用当地自然资源,增加农业生态经济系统的产出能力,实现阿坝州农业经济的可持续发展。

    Abstract:

    Based on the theory of H.T.Odum, a quantitative analysis of energy inputs and outputs of agri- cultural eco-economic system in Aba Autonomous Prefecture between 1952 and 2005 in Sichuan Province is given and an comparison of Aba with other regions is made.Results show that because of the over-exploitation of natural forest last century, ecological environment in the area has been seriously damaged.Along with the forest economy! ended and the rise of eco-tourism, Aba? s ecological and environmental conditions are gradually improved.But agricultural ecosystem still has such problems as serious shortage of modern assisted inputs, backward production model, and agricultural development on the basis of the excessive use of natural resources, so a sustainable development is difficult to achieve.It is therefore essential to enhance research and extension of agricultural science and technology, improve the quality of workers in order to make full use of local natural resources, increase the agricultural output capacity of ecological and economic systems, and achieve the sustainable development of agricultural economy.

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魏奋子,岳敏.青藏高原东北缘地带50多年来农业生态经济系统可持续发展分析[J].水土保持通报,2008,(4):191-197

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  • 收稿日期:2008-01-17
  • 最后修改日期:2008-03-25
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  • 在线发布日期: 2014-11-26
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