| 常绿阔叶林地被层在群落中的作用：以浙江天童为例 |
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| 引用本文： | 张笃见,由文辉.常绿阔叶林地被层在群落中的作用：以浙江天童为例[J].西南师范大学学报(自然科学版),1997,22(3):319-323. |
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| 作者姓名： | 张笃见 由文辉 |
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| 作者单位： | 西南师范大学城镇与资源环境科学系，华东师范大学环境科学技术系 |
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| 摘 要： | 对常绿阔叶林地被层在群落中的作用作了初步研究．结果表明：地被层阻碍凋落物进入地表，地被层枯死物与森林凋落物构成层层交错重迭的密层，大量减弱地表光照，阻碍土壤蒸发，使地表过度阻湿，不利于乔木优势种种子保存及幼苗存活．森林更新幼苗主要来源于草窗
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| 关 键 词： | 常绿阔叶林 地被层 更新 |
Contrastive analysis of the cotton planting regions between Sichuan Basin and Jianghan Plain and the selection of appropriate cotton planting regions |
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| Liu\ Liwei.Contrastive analysis of the cotton planting regions between Sichuan Basin and Jianghan Plain and the selection of appropriate cotton planting regions[J].Journal of Southwest China Normal University(Natural Science),1997,22(3):319-323. |
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| Authors: | Liu\ Liwei |
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| Abstract: | Taking Tianmen city of commodity cotton where is on Jianghan plain and using fuzz similitude choice,the weather conditions of different cotton planting region in Sichuan Basin are analysed contrastively.Aaccording to the result of analysis and the developing tendency of cotton in future,a proposal about the regulation of cotton planting region in Sichuan Basin is given. |
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| Keywords: | Jianghan Plain Sichuan Basin fuzz similitude choice cotton planting weather condition |
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