| 云杉幼林地中华鼢鼠防治阈值研究 |
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| 引用本文： | 付文斌 汪有奎 等. 云杉幼林地中华鼢鼠防治阈值研究[J]. 北华大学学报(自然科学版), 2000, 1(5): 439-442 |
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| 作者姓名： | 付文斌 汪有奎 等 |
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| 作者单位： | [1]甘肃省迭部林业局，甘肃迭部747401 [2]甘肃祁连山国家级自然保护区管理局，甘肃张掖734000 |
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| 基金项目： | 甘肃省林业科技攻关项目!(GLK96 - 2 2 9) |
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| 摘 要： | 经1996－1998年在祁连山、迭部山区调查，云杉（Picea asperata)幼林地内中华鼢鼠（Myospalax fontanieri Milne-Edwards)危害幼树死亡率（y,%)，与鼠口密度(x,只／hm^2)成幂函数相关：y=4.1791x^0.5439(R=0.9519),经济允许死亡率为0.82%。达到中国危害程度应进行人工防治的经济阈值（幼树死亡株率）为1.6%，鼠口密度为0.17只／hm^2。测定了不同初植密度林分的鼢鼠防治生态指标。
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| 关 键 词： | 云杉幼林 中华鼢鼠 生态阈值 鼠害防治 生态指标 经济阈值 |
On the Prevention Threshold of Myospalax fontanieri Milne in Picea asperata Young Plantation |
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| Fu Wenbin ,Wang Youkui ,Sun Xiaoxia ,Ma Shigui Guan Dening ,Jin Minyan ,Li Jinjun. On the Prevention Threshold of Myospalax fontanieri Milne in Picea asperata Young Plantation[J]. Journal of Beihua University(Natural Science), 2000, 1(5): 439-442 |
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| Authors: | Fu Wenbin Wang Youkui Sun Xiaoxia Ma Shigui Guan Dening Jin Minyan Li Jinjun |
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| Affiliation: | Fu Wenbin 1,Wang Youkui 2,Sun Xiaoxia 2,Ma Shigui 2 Guan Dening 2,Jin Minyan 2,Li Jinjun 3 |
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| Abstract: | On the basis of investigation in Qilian Mountain and Diebu Mountain from 1996 to 1998, death rate and density of young plantation damaged by Myospalax fontanieri Milne in Picea asperata young plantation are power function relative: y =4.179?1 x 0.543?9 ( R =0.951?9),economic death rate is 0.82%. The disease reaching on the middle damage degree is 1.6%, which must have artificial prevention economic threshold, the density is 0.17/hm 2, and prevention ecological indicator was ditermined in different density stands. |
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| Keywords: | Picea asperata Myospalax fontanieri Milne Threshp |
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