| 海南岛儋县宝岛新村自然植被的变迁及其对环境的某些影响 |
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| 引用本文： | 郑坚端. 海南岛儋县宝岛新村自然植被的变迁及其对环境的某些影响[J]. 植物生态学报, 1982, 6(3): 207-218 |
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| 作者姓名： | 郑坚端 |
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| 作者单位： | 华南热带作物学院 |
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| 摘 要： | 本文报道了宝岛新村近三十年来自然植被的破坏，及其在以下几方面的反应：1．植被逐渐矮化，组成种类逐渐减少，木本植物由五十年代初期的211种减少到目前的102种。2．野生动物也日益减少，有21种鸟类已不复存在。3．土壤肥力衰退，其结果是作物产量逐年下降，生物产量低下，以及某些喜阴嗜肥植物消失和耐旱耐瘠植物侵入。
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The Change of Natural Vegetation at Baodao Xin Cun, Dan Xian County, Hainan Island and Some Influences on Environment |
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| Zheng Jianduan. The Change of Natural Vegetation at Baodao Xin Cun, Dan Xian County, Hainan Island and Some Influences on Environment[J]. Acta Phytoecologica Sinica, 1982, 6(3): 207-218 |
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| Authors: | Zheng Jianduan |
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| Abstract: | This paper recorded the destruction of natural vegetation at Baodao Xin Cun in recent thirty years, and its influences on the following aspects. 1. The vegetation is becoming lower and lower gradually, and the species of its composition fewer and fewer; the kinds of woody plant have been reduced to 102 as compared with that which is composed of 211 at the beginning of 1950’S. 2. Wild animals have become fewer as well, 21 species of birds have no longer existed. 3. The soil fertility is declining. As a result, the output of crop is decreasing and the outgrowth of natural vegetation is becoming poor year by year. In some quadrats, the fresh weight of plants above the ground is just over half of one kilogram per square meter. With the decling of soil fertility, some sciophiles specially fond of rich soil are dying away and some arid-enduring plants are sneaking in. |
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