| 引用本文： |
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甘一忠,李耀先,夏小曼.苦楝树春季物候期特征及其与农业界限温度关系[J].广西科学,2001,8(2):143-147. [点击复制]
- Gan Yizhong,Li Yaoxian,Xia Xiaoman.Relationship between Spring Phenophase Characteristics of Beadtree and Agricultural Threshold Temperature[J].Guangxi Sciences,2001,8(2):143-147. [点击复制]
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| 摘要: |
| 根据广西12个市县气象站对苦楝物候观测资料(其中24°N以北4个点,24°N和以南8个点,资料年限14年~19年),发现,各站苦楝春季平均芽开放期(ȳ芽开放)、展叶平均始期(ȳ展叶始)、开花平均始期(ȳ开花始)与当地经度、纬度、冬季平均气温呈正相关关系(r芽开放=0.85**,r展叶始=0.86**,r开花始=0.99***)。在广西24°N及以南地区,用各站逐年1月平均气温(X11)、≥10℃始日(X12)和头年≥15℃终日(X13)建立的苦楝物候期预测模型:ŷ芽开放1=87.995-0.263X11+0.163X12-0.123X13(r=0.55***,n=130);ŷ展叶始1=74.953-0.358X11+0.215X12+0.111X13(r=0.70***,n=130);ŷ开花始1=46.063-0.267X11+0.250X12+0.065X13(r=0.71***,n=130)。在广西24°N以北地区,用各站逐年≥5℃初日(X21)、1月平均气温(X22)和头年≥10℃终日(X23)建立的苦楝物候期预测模型:ŷ芽开放2=87.204+0.123X21-0.216X22-0.05X23(r=0.50**,n=69);ŷ展叶始2=80.572+0.126X21-0.334X22-0.142X23(r=0.64***,n=69);ŷ开花始2=89.296-0.046X21-0.363X22-0.193X23(r=0.65***,n=69)。 |
| 关键词: 苦楝树 物候期 农业界限温度 |
| DOI： |
| 投稿时间：2000-02-06修订日期：2001-04-19 |
| 基金项目: |
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| Relationship between Spring Phenophase Characteristics of Beadtree and Agricultural Threshold Temperature |
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Gan Yizhong, Li Yaoxian, Xia Xiaoman
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| (Guangxi Meteorological Bureau, 81 Minzhudadao, Nanning, Guangxi, 530022, China) |
| Abstract: |
| Based on the phenophase data of 14 to 19 years of Melia azedarach in 12 regions in Guangxi,in which 4 regions are at the 24°N northward,8 regions at 24°N and southward, it is found that the average sprout date (ȳsprout),average leafing date (ȳleafing),average blooming date (ȳblooming) in spring positive correlate to latitude,longitude, average winter air temperature, with correlation coefficients of rsprout=0.85**,rleafing=0.86**,rblooming=0.99***,in these 12 stations.At the 24°N and southward,the phenophase models are developed with average January air temperature(x11),initial date of ≥ 10℃(x12),end date of ≥ 15℃ last year (x13) as follows:ŷsprout1=87.995-0.263X11+0.163X12-0.123X13(r=0.55***,n=130);ŷleafing1=74.953-0.358X11+0.215X12+0.111X13(r=0.70***,n=130); 1 ŷblooming2=46.063-0.267X11+0.250X12+0.065X13(r=0.71***,n=130). At the 24°N northward, the phenophase models are developed with initial date of ≥ 5℃(x21),average January air temperature(x22), end date of ≥ 10℃ last year (x23) as follows:ŷsprout2=87.204+0.123X21-0.216X22-0.05X23(r=0.50**,n=69); ŷleafing2=80.572+0.126X21-0.334X22-0.142X23(r=0.64***,n=69); ŷblooming2=89.296-0.046X21-0.363X22-0.193X23(r=0.65***,n=69). |
| Key words: Melia azedarach phenophase agricultural threshold temperature |
