| 西双版纳河溪等级体系研究 |
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| 引用本文： | 吴兆录,郑寒,刘宏茂,高雷,许又凯,崔景云.西双版纳河溪等级体系研究[J].云南大学学报(自然科学版),2001,23(3):231-234. |
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| 作者姓名： | 吴兆录 郑寒 刘宏茂 高雷 许又凯 崔景云 |
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| 作者单位： | 1. 中国科学院西双版纳热带植物园,
2. 云南大学生态学与地植物学研究所, |
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| 基金项目： | 国家自然科学基金资助项目(39860021);中国科学院知识创新项目. |
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| 摘 要： | 河与溪是河溪连续体的不同部分，需要有一个简明实用的区别方法，用Acr/info和AcrView建立430km2区域内河溪GIS，研究了西双版纳河溪等级体系（5级），1－2级为溪，3－5级为河，溪流比降大，支流少，水道窄，两岸植被互相交接遮盖水道，形成明显的遮荫性和隐蔽性小环境，对居民活动不产生隔离作用，而河流则有相反的特点，研究区内常流河溪630km，溪占91％，河仅占9％。
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| 关 键 词： | 河溪连续体 等级体系 西双版纳 生境格局 土地利用 生物多样性 综合生态系统 |
| 文章编号： | 0258-7971(2001)03-0231-04 |
| 修稿时间： | 2001年3月12日 |
A Study on Hierarchy of River and Small Stream in Xishuangbanna China |
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| WU Zhao lu ,ZHENG Han ,LIU Hong mao ,GAO Lei ,XU You kai ,CUI Jing yun.A Study on Hierarchy of River and Small Stream in Xishuangbanna China[J].Journal of Yunnan University(Natural Sciences),2001,23(3):231-234. |
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| Authors: | WU Zhao lu ZHENG Han LIU Hong mao GAO Lei XU You kai CUI Jing yun |
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| Institution: | WU Zhao lu 1,2,ZHENG Han 2,LIU Hong mao 1,GAO Lei 1,XU You kai 1,CUI Jing yun 1 |
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| Abstract: | HE(rivers)and XI(small streams)mean in Chinese different parts of a riparian continuum.A five grade hierarchy was established to distinguish HE from XI based on the Geographical Information System supported by Acr/info and AcrView software within an area of 430?km 2 in Xishuangbanna,SW China.Of the hierarchy,grade 1 and grade 2 were considered XI which,in comparison to HE (grade 3,4 and 5),was characterized by the larger descent ratio,fewer tributaries,narrower channels,higher connection of riparian vegetation on both sides,and more convenience for human activities.Of the 630 ? rivers and small streams in length within the study area,91% was XI and 9% was HE. |
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| Keywords: | riparian continuum river small stream hierarchy |
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