| 波动性生态脆弱带的特征 |
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| 引用本文： | 孙武.波动性生态脆弱带的特征[J].中国沙漠,1997,17(2):199-203. |
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| 作者姓名： | 孙武 |
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| 作者单位： | 华南师范大学地理系, 广州 510631 |
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| 摘 要： | 波动性生态脆弱带是生态脆弱带的基本类型之一,跃变性是波动性的实质,降水的高变率与人类活动的保守性、稳定性的尖锐矛盾是形成脆弱的主要原因。牧草、粮食的放大性是对降水波动性的进一步体现,波动性是对农林牧土地利用结构,经济水平,人口超载状况的综合反映,是度量脆弱度的实用指标之一。
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| 关 键 词： | 波动性 生态脆弱带 跃变性 放大性 |
| 收稿时间： | 1996-01-09 |
THE NATURE OF THE FLUCTUATING ECOTONE |
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| Sun Wu.THE NATURE OF THE FLUCTUATING ECOTONE[J].Journal of Desert Research,1997,17(2):199-203. |
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| Authors: | Sun Wu |
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| Institution: | Geography Department of South China Normal University, Guangzhou 510631 |
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| Abstract: | The Fluctuating is a major type of the Ecotone as Boundary Ecotone.Jump change is it's nature.The fluctuating of land productive forces is a scientific and practical index to weakness.High abruptness of climate change and conservatism of Man make up main contradiction between Man-land relation and basic cause for the weak.The amplification which means that the change for yield of grass and food is much larger than that of rain sharpens. |
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| Keywords: | The Fluctuating Ecotone Jump change Amplification |
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