| 日照对安康飞播油松成苗效果的影响 |
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| 引用本文： | 童开林,韩崇选,李建春.日照对安康飞播油松成苗效果的影响[J].西北林学院学报,2022,37(3):105-113. |
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| 作者姓名： | 童开林 韩崇选 李建春 |
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| 作者单位： | （1.杨凌职业技术学院，陕西 杨陵 712100；2.西北农林科技大学 林学院，陕西 杨陵 712100；3.陕西省飞机播种造林工作站，陕西 西安 710082） |
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| 摘 要： | 在安康降水量和温度与飞播油松成苗效果关系研究的基础上，采用相关分析法和逐步回归模型法，分析安康日照时数与飞播油松成苗效果的关系及时域动态，并通过与降水量和温度研究结果对比分析，探讨林地水热条件对飞播油松成苗效果协同作用。结果表明，成苗效果与年日照时数和年均温呈正相关，与年降水量呈负相关；与12月日照和均温呈显著或极显著正相关，与12月降水量负相关极显著；与3月降水量正相关极显著；与4月日照和均温正相关极显著；与5月日照呈显著负相关，与降水量呈极显著正相关；与6月降水量负相关极显著；与7月日照负相关显著；与9月和11月日照正相关极显著，与10月日照正相关显著；与秋季月均温正相关极显著，与月降水量负相关极显著。9月和7月日照是影响成苗效果的主要日照因子，4月、11月、3月和5月均温对成苗效果作用较大，12月、2月和11月降水量是影响成苗效果和对照有苗样方频度的主要降水指标，12月、4月、11月、8月、1月和2月降水量与多效抗旱驱鼠剂(RPA)有苗样方频度依次相关。在安康林地水热条件下，RPA成苗效果模型值大于对照，证明使用RPA拌种可以有效提高飞播造林油松成苗量和有苗样方频度。
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| 关 键 词： | 飞播造林 RPA 油松 光照时数 成苗效果 |
Influence of Sunshine on Effective Seedling Grown-up of Pinus tabuliformis for Aerial Seeding in Ankang City |
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| TONG Kai-lin,HAN Chong-xuan,LI Jian-chun. Influence of Sunshine on Effective Seedling Grown-up of Pinus tabuliformis for Aerial Seeding in Ankang City[J].Journal of Northwest Forestry University,2022,37(3):105-113. |
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| Authors: | TONG Kai-lin HAN Chong-xuan LI Jian-chun |
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| Institution: | (1.Yangling Vocation & Technical College,Yangling 712100,Shaanxi,China; 2.Research Center of Rodent Pest Management,Northwest A&F University,Yangling 712100,Shaanxi,China; 3.Shaanxi Station of Forest Pest Management,Xi’an 710082,Shaanxi,China） |
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| Abstract: | The solar radiation was the main force for the change of the forest hydrothermal resources,it has a strong influence on the effective grown-up seedling (EGS) in aerial seeding afforestation.Based on the results of our previous studies on the relationship between the EGS and the temperature,as well as the precipitation in aerial seeding afforestation of Pinus tabuliformis,this paper studied the relationship between the EGS the sunshine duration in aerial seeding afforestation of P.tabuliformis in Ankang by using the correlation analysis method and the stepwise regression model analysis method.The time-domain variation was also investigated.Based on the research results of the influences of precipitation and temperature on the EGS,a comparative analysis was conducted to explore the coordinating functions among the sunlight,temperature and precipitation.The relationship between the EGS and other relative parameters were reported as follows.The EGS was positively correlated with the annual sunshine duration and the annual average temperature,negatively correlated with the annual precipitation; significantly (or very significantly) and positively correlated with sunshine and mean temperature in December,and highly significantly and negatively correlated with the precipitation in December; very significantly and positively correlated with the precipitation in March; highly significantly and positively correlated with the sunshine and temperature in April; significantly and negatively correlated with the sunshine,and significantly and positively correlated with the precipitation in May; highly significantly and negatively correlated with the precipitation in June; significantly and negatively correlated with the sunshine in July; very significantly and positively correlated with the sunshine in September and November; highly significantly and negatively correlated with the sunshine in October; very significantly and positively correlated with the monthly average temperature,and highly significantly and negatively correlated with the precipitation in autumn.Sunshine duration in September and July were main light factors influencing the EGS.Average temperature in April,November,March,and June were relatively significant effect on the EGS.Amounts of rainfall in December,February and November were primary precipitation index to influence the EGS in control area and RPA treatment area and the frequentness of sample plots with available seedling in the control plot.The frequentness of sample plots with available seedling in RPA successively associated with monthly rainfall in December,April,June,November,January,and February.Under the forest hydrothermal conditions in Ankang City,the effective grown-up seedling model values in RPA were larger than the values of the control,which proved that the quantity of available seedling and the frequentness of sample plots with available seedling of P.tabuliformis were improved effectively by using RPA dressing seed in aerial seeding. |
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| Keywords: | afforestation by aerial seeding RPA Pinus tabuliformis Pinus tabuliformis sunshine hour effective grown-up seedling |
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