| 免耕生草对云南高原魔芋地温时空变化的影响 |
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| 引用本文： | 董广平,卢俊,彭磊.免耕生草对云南高原魔芋地温时空变化的影响[J].北方园艺,2011(7):48-50. |
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| 作者姓名： | 董广平 卢俊 彭磊 |
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| 作者单位： | 云南农业大学,园林园艺学院,云南,昆明,650201;云南省农业科学院,富源魔芋研究所,云南,富源,655500 |
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| 基金项目： | 云南省教委基金资助项目(09C0263); FAO技术援助资助项目(TCP/CPR/3106) |
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| 摘 要： | 连续3 a研究了免耕生草对云南高原山地栽培魔芋地温时空变化的影响。结果表明:地温具有明显的时空动态变化特征,与魔芋的年生长发育周期各阶段的最适温度相吻合;免耕生草改变了土壤热量交换层(地表层)的性质,具有气温升高时减缓地温上升和降温时延缓温度下降的双向动态调控作用,调控幅度随气温的升高而增大,随气温的下降而加强;降低了日较差,增强了同一土层温度的稳定性,其调控幅度随着土壤深度增加而降低,不同观察时刻表现出13:00>19:00>7:00的规律;显著地降低了有害高温的出现次数,明显地降低了持续高温期的土壤温度。
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| 关 键 词： | 魔芋 地温 免耕生草 时空变化 |
Effects of Natural Weedsing on Temporal Spatial Variation of Soil Temperature in Konjac Plantation in Yunnan Highland Region |
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| DONG Guang-ping,LU Jun,PENG Lei.Effects of Natural Weedsing on Temporal Spatial Variation of Soil Temperature in Konjac Plantation in Yunnan Highland Region[J].Northern Horticulture,2011(7):48-50. |
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| Authors: | DONG Guang-ping LU Jun PENG Lei |
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| Institution: | DONG Guang-ping1,LU Jun2,PENG Lei1(1.College of Horticulture and Landscape,Yunnan Agricultural University,Kunming,Yunnan 650201,2.Fuyuan County Agriculture Bureau of Yunnan Province,Fuyuan,Yunnan 655500) |
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| Abstract: | The effects about natural weedsing to temporal spatial variation of soil temperature of konjac plantation in YunNan highland region was studied for three years continuously.The results showed that the soil temperature presented a significant variation,which were coincident with preferred temperatures of konjac at different growing periods.natural weedsing altered the nature of soil thermal exchanging layer(soil surface),meanwhile it had a double-side effect on slowing down the raise and the decline of soil ... |
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| Keywords: | konjac soil temperature natural weedsing temporal spatial variation |
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