| 三江源地区人工增雨量对牧草产量贡献率的评估方法探讨 |
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| 引用本文： | 王黎俊,伏洋,孙安平.三江源地区人工增雨量对牧草产量贡献率的评估方法探讨[J].青海草业,2006,15(4):12-15. |
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| 作者姓名： | 王黎俊 伏洋 孙安平 |
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| 作者单位： | 1. 青海省人工影响天气办公室,青海,西宁,810001
2. 青海省气象局科研所,青海,西宁,810001 |
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| 摘 要： | 运用区域历史回归分析的方法,选用1989~2005年6~9月期间三江源地区4个监测站点的牧草产量资料和降水资料,分析了牧草产量和降水量之间的相关关系。结果表明:降水量与牧草产量的相关系数显著性水平<0.05,并在此基础上建立了评估人工增雨量对牧草产量贡献的回归方程。计算表明:在三江源地区夏季(6~9月)通过人工影响,区域内每增加平均降水量10mm,即可在三江源地区增加区域平均牧草产量315kg/hm2。
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| 关 键 词： | 人工增雨量 牧草产量 贡献率 评估方法:区域历史回归分析法 |
| 文章编号： | 1008-1445（2006）04-0012-04 |
| 收稿时间： | 2006-09-18 |
| 修稿时间： | 2006年9月18日 |
DISCUSS THE ARTIFICIAL RAINFALL FOR CONTRIBUTION RATE OF GRAZING OUTPUT BASE ON EVALUATE METHOD IN SANJIANGYUAN AREA |
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| WANG Li- Jun,et al.DISCUSS THE ARTIFICIAL RAINFALL FOR CONTRIBUTION RATE OF GRAZING OUTPUT BASE ON EVALUATE METHOD IN SANJIANGYUAN AREA[J].Qinghai Prataculture,2006,15(4):12-15. |
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| Authors: | WANG Li- Jun |
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| Abstract: | Based on the grazing output and precipitation data of 4 observatories of June- September in 1989 2005 in Sanjiangyuan area, and apply the history regress analysis to analyze correlativity between grazing output and precipitation. It is shown that they have good relations, and remarkable lever of correlation modulus less than 0.05, then getting a regress equation in terms of artificial rainfall for contribution of grazing output. The result is found. There are 10mm of average precipitation increase in summer in Sanjiangyuan area by artificial rainfall, that say there are 315kg/ha increase of grazing output in same region. |
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| Keywords: | Artificial rainfall Grazing output Contributing rate Evaluating method The history regress analysis of area |
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