| 石灰岩区宜林荒山春季土壤含水率预测 |
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| 引用本文： | 吕赞韶,何力春.石灰岩区宜林荒山春季土壤含水率预测[J].北京林业大学学报,1994,16(3):106-111. |
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| 作者姓名： | 吕赞韶 何力春 |
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| 作者单位： | 山西省林业科学研究所 林业部科技司(吕赞韶，曹雅宁，奥小平，沈佐)，( 何力春) |
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| 摘 要： | 该文利用４年的实地观测资料，进行了石灰岩区宜林荒山春季土壤含水率预测研究。采用逐步回归方法，按隔候、隔旬两个预期间隔期，建立了阳坡、半阳坡、阴坡３个坡向，５、２０ｃｍ两个土层的预测模型，平均精度９４．８％。为了解决预测间隔期内产生降水对预测结果的影响，提出了用更正系数和降水量计算更正值的方法，对预测值进行更正．
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| 关 键 词： | 石灰岩，宜林荒山，土壤含水率，回归预测 |
Forecast of Soil Water Content in Spring for Carcareous Mountains Suitable Suitable for Afforestation |
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| Lti Zanshao ,Cao Yaning, Ao Xiaoping, Shen Zuo.Forecast of Soil Water Content in Spring for Carcareous Mountains Suitable Suitable for Afforestation[J].Journal of Beijing Forestry University,1994,16(3):106-111. |
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| Authors: | Lti Zanshao Cao Yaning Ao Xiaoping Shen Zuo |
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| Abstract: | Using data from observation materials collected over a four year period thispaper discusses the forecast of soil water content in spring for waste mountains on carcareoushilly land. By stepwise regression,the forescast equations are established in three slopes(south-facing slope ,semi-south-facing slope,north-facing slope)and two soil depthes(5cm,20cm)on the basis of two different intervals(five days and ten days).The average precision ofthe equations was 94.8%。In order to eliminate the effect of rainfalls on the forecast resultswithin the intervals,the redressing value of every equation was calculated by means of precip-itation and the redressing coefficient. There was little difference between the precision offorecast methods in accordance with two intervals. |
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| Keywords: | carcareous hilly land waste land suitable for afforestation soil water con-tent regressional forecast |
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