[1]杨小林,宫照红,马和平. 拉萨半干旱河谷砂生槐灌丛群落退化程度评价[J].西北林学院学报,2012,27(05):11-14.
 YANG Xiao-lin,GONG Zhao-hong,MA He-ping. Evaluation on the Degradation of Shrub Community of Sophora moorcroftiana in Semi-Arid Valley of Lhasa[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(05):11-14.
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 拉萨半干旱河谷砂生槐灌丛群落退化程度评价()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第27卷
期数:
2012年05期
页码:
11-14
栏目:
出版日期:
2012-09-20

文章信息/Info

Title:
 Evaluation on the Degradation of Shrub Community of Sophora moorcroftiana in Semi-Arid Valley of Lhasa
文章编号:
1001-7461(2012)05-0011-04
作者:
 杨小林宫照红马和平
 (西藏农牧学院,西藏 林芝 860000)
Author(s):
 YANG Xiao-lin GONG Zhao-hong MA He-ping
 (Tibet Agriculture and Animal Husbandry College, Nyingchi, Tibet 860000, China)
关键词:
 砂生槐 退化指数 恢复 拉萨半干旱河谷
Keywords:
 Sophora moorcroftiana degradation index restoration semi-arid valley of Lhasa
分类号:
Q718.54
文献标志码:
A
摘要:
 为探索拉萨半干旱河谷地带性植被—砂生槐灌丛的恢复重建和分类经营的方法和途径,采用Delphi(专家咨询法)和AHP(层次分析法)相结合的方法,在相关指标调查的基础上,选择8个指标因子,建立退化评价指标体系及相应的综合评定指数,评判拉萨半干旱河谷砂生槐群落灌丛退化程度。结果表明:1)砂生槐群落盖度<10%,退化指数为0.78,属于极度退化;群落盖度10%~30%,退化指数为0.61,属重度退化;群落盖度30%~60%,退化指数为0.49,属中度退化;盖度≥60%以上,指数为0.27,属轻度退化。2)在极度退化地段应采取植被重建,人工进行恢复;重度和中度退化的可采用人工促进和封育措施来控制干扰强度,改善干扰方式,促进自然恢复;对于轻度退化的可采用轮牧的方式进行适度的经营活动。

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