气象因子对荒漠草原5种天然灌木产量的影响

Effects on the Five Desert Steppe Natural Shrubs Yield for Weather Factors

选择在腾格里沙漠有代表性的5种天然灌木,利用内蒙古孪井滩气象站2002—2009年的灌木观测资料和历年的气象资料,应用数理统计方法,分析5种天然灌木产量与气象因子之间的关系。结果表明:霸王、白刺、红砂月产量与月平均气温、月降水量呈正相关;而红刺和猫头刺月产量与月降水量呈正相关,与月平均气温呈负相关。白刺的月产量与月平均气温的相关性达到显著水平,霸王和红砂与月平均气温的相关性达到极显著水平,红刺和猫头刺不显著;白刺和霸王的产量与月降水量的相关性达到显著水平,红刺与月降水量的相关性达到极显著水平,红砂和猫头刺与月降水量的相关性不显著。采用多元回归分析方法建立了5种天然灌木产量与2种气象因子的多元回归方程式。

Based on the annual meteorological data and grass observation at 2002-2009 in stock raising Luanjingtan Meteorological Station of Inner Mongolia,it’s analyzed that the effects of weather factors on production characteristic of five native grasses.The results showed that:Neonatal tresses of Zygophyllum xanthoxylum、Nitraria tangutorum and Rsongariea(psll)Maxim was passive relation;Garagana microphylia and Oxytropis aciphylla was passive relation with monthly total precipitation,negative relation with right time with mean temperature of air at monthly.Except for the production of Garagana microphylia and Oxytropis aciphylla,except for the production of Rsongariea(psll)Maxim and Oxytropis aciphylla,the relation was prominent of Nitraria tangutorum、Zygophyllum xanthoxylum and Rsongariea(psll)Maxim with mean temperature of air at monthly,the relation was prominent of Nitraria tangutorum、Zygophyllum xanthoxylum and Rsongariea(psll)Maxim with monthly total precipitation;the Multiple regression analysis quotient was.