| 南方丘陵区小流域生态系统杂草物种多样性的空间分布特征 |
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| 引用本文： | 陈杰,陈欣,方治国.南方丘陵区小流域生态系统杂草物种多样性的空间分布特征[J].生态学报,2002,22(3):440-443. |
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| 作者姓名： | 陈杰 陈欣 方治国 |
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| 作者单位： | 浙江大学农业生态研究所,杭州,310029 |
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| 基金项目： | 国家自然科学基金资助项目 ( 39870 1 4 9,30 0 30 0 30 ) |
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| 摘 要： | 以开发利用程度较高的浙江德清排溪冲小流域为研究范例，采用网格化样框取样的调查方法和GIS技术，研究了南主丘陵区小流域生态系统的杂草生物多样性的分布格局，结果表明小流域内杂草多样性呈现明显的空间分布特征，稻田杂草多样性最低，坡地次之，稻田与坡地的交错带杂草物种最丰富，坡地中开发利用程度高的茶园和竹园杂草多样性较高，新开发的果园和旱地作杂草物种较少。
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| 关 键 词： | 南方 杂草物种多样性 小流域生态系统 丘陵地区 空间分布特征 |
| 文章编号： | 1000-0933(2002)03-0440-04 |
| 收稿时间： | 2006/6/25 0:00:00 |
| 修稿时间： | 2000年6月25日 |
Spatial Distribution Characteristics of Weed Species Diversity in a Watershed Ecosystem in Southern China's Hilly Area |
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| CHEN Jie,CHEN Xin and FANG Zhiguo.Spatial Distribution Characteristics of Weed Species Diversity in a Watershed Ecosystem in Southern China's Hilly Area[J].Acta Ecologica Sinica,2002,22(3):440-443. |
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| Authors: | CHEN Jie CHEN Xin and FANG Zhiguo |
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| Institution: | Agroecology Institute of Zhejiang University; Hangzhou; China |
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| Abstract: | Paixichong watershed,a developed watershed in Deqing County,Zhejiang Province,was selected as a case to study the distribution characteristics of weed species richness in a watershed ecosystem in southern China's hilly area by using grid sampling method and combining GIS(Geographic Information System) technology.The results show that different land use patterns have a great impact on weed species composition and species richness distribution.The ecotone of paddy field and sloping land has the largest number of weed species and the highest species richness,while the paddy field has the lowest.Tea plantation and bamboo field,developed for a long time,have a higher weed species diversity,comparing with the newly developed orchard and upland field in the sloping land. |
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| Keywords: | weed species diversity watershed ecosystem hilly area spatial distribution characteristics |
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