| 四川盆地紫色水稻土评价方法研究—以蓬溪县水稻土为例 |
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| 引用本文： | 雍国玮 周德锋. 四川盆地紫色水稻土评价方法研究—以蓬溪县水稻土为例[J]. 西南大学学报(自然科学版), 1991, 13(2): 148-152 |
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| 作者姓名： | 雍国玮 周德锋 |
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| 作者单位： | 四川省国土勘测规划研究所(雍国玮)，四川省国土勘测规划研究所(周德锋) |
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| 基金项目： | 农牧渔业部原土地管理局1985年下达的《四川盆地紫色土(黄壤)区土地讦价研究》课题 |
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| 摘 要： |
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| 关 键 词： | 紫色土 水稻土 评价法 四川盆地 |
STUDIES OF THE EVALUATION METHODS OF PURPLE PADDY SOILS IN SICHUAN BASIN |
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| Yong Guowei Zhou Defeng. STUDIES OF THE EVALUATION METHODS OF PURPLE PADDY SOILS IN SICHUAN BASIN[J]. Journal of southwest university (Natural science edition), 1991, 13(2): 148-152 |
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| Authors: | Yong Guowei Zhou Defeng |
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| Affiliation: | Sichuan State Land Survey and Planning Institute |
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| Abstract: | Quantitative evaluation and mapping in large scale(1:10000)were com-pleted based on B&W air-photos(scale 1:15000)and the statistical datataken in the field in Pengxi county,Sichuan province.Much attentionwas paid in the process of evaluation to soil productivity as influencedby its natural and economic properties.The natural productivity of thesoil was taken as the final index for the evaluation.Furthermore,theevaluation factors related to the natural productivity of the soil,exclu-sive of its economic properties,were selected by progressive regressionwith a computer The results showed that 7 principal factors greatlyaffect the natural productivity of rain-fed tilled purple soil,i.e.organicmatter content,tillage depth,field capacity,slope,available phosphoruscontent and bio-climate potential,while 6 were identified for purple pa-ddy soil:irrigation level,organic matter,total P content,tillage depth,physical clay content and bio-climatic potential. |
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| Keywords: | purple soil paddy soil evoluations methods Sichuan province |
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