| 滇西北高山牧场入侵物种土大黄生态学调查 |
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| 引用本文： | 申时才,Andrew WILLSON,David MELICK. 滇西北高山牧场入侵物种土大黄生态学调查[J]. 西南林学院学报, 2006, 26(3): 11-14,19 |
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| 作者姓名： | 申时才 Andrew WILLSON David MELICK |
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| 作者单位： | 1. 云南省生物多样和传统知识研究会,云南,昆明,650034
2. 中国科学院,昆明植物研究所,云南,昆明,650204 |
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| 基金项目： | 加拿大国际发展研究中心（DRC）资助项目. |
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| 摘 要： | 2003年8月,对滇西北贡山县迪麻洛村色娃龙巴夏季高山牧场进行了植被和土大黄空间分布调查.结果表明:45%的样点中出现土大黄,9%的样点中覆盖率>25%;土大黄的出现与‘草地’景观、放牧强度、牧民住所的近远呈正相关,与海拔高度和坡度呈负相关;土大黄的分布和扩张与传统的轮牧体系息息相关.
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| 关 键 词： | 生物入侵 土大黄 生态调查 高山牧场 |
| 文章编号： | 1003-7179（2006）03-0011-04 |
| 收稿时间： | 2005-05-23 |
| 修稿时间： | 2005-05-23 |
Ecological Investigation of the Invasive Specie Rumex nepalensis in Alpine Rangeland in NW Yunnan Province |
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| SHEN Shi-cai,Andrew WILLSON,David MELICK. Ecological Investigation of the Invasive Specie Rumex nepalensis in Alpine Rangeland in NW Yunnan Province[J]. Journal of Southwest Forestry College, 2006, 26(3): 11-14,19 |
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| Authors: | SHEN Shi-cai Andrew WILLSON David MELICK |
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| Affiliation: | 1. Provincial Institute of Biodiversity and Indigenous Knowledge, Kunming Yunnan 650034, China ; 2. Kuming Institute of Botany, China Academy of Sciences, Kunming Yunnan 650204, China |
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| Abstract: | The flora and the spatial distribution of the invasive specie Rumex nepalensis in Sewalongba Valley, an important alpine summer rangeland in Dimaluo village, Gongshan County, northwest Yunnan Province were investigated in August 2003. It was showed by the results that Rumex nepalensis appeared in 45% of the total sampled quadrates, and the coverage of the invasive species was over 25% of the surface area in 9% of the quadrates sampled. The occurrence of Rumex nepalensis was positively correlated with the degraded grassland landscape, the grazing intensity, and with the distance from the herdsman houses, whereas it was negatively correlated with the elevation and gradient of the slopes. The distribution and expansion of Rumex nepalensis was affected by local traditional grazing regimes. |
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| Keywords: | invasive specie Rumex nepalensis ecological investigation alpine rangeland |
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