Global warming will affect growth strategies and how trees will adapt.To compare the response of tree radial growth to climate warming in different slope directions,samples of Pinus armandii Franch were collected and ...Global warming will affect growth strategies and how trees will adapt.To compare the response of tree radial growth to climate warming in different slope directions,samples of Pinus armandii Franch were collected and tree-ring chronologies developed on northern and western slopes from the Lubanling in the Funiu Mountains.Correlation analyses showed that two chronologies were mainly limited by temperatures in the previous June-August and the com-bination of temperatures and moisture in the current May-July.The difference of the climate response to slopes was small but not negligible.Radial growth of the LBLO1 site on the northern slope was affected by the combined maximum and minimum temperatures,while that of the LBLO2 site was affected by maximum temperatures.With regards to moisture,radial growth of the trees on the north slope was influenced by the relative humidity in the current May-July,while on the western slope,it was affected by the relative humidity in the previous June-August,the current May-July and the precipitation in the current May-July.With the change in climate,the effects of the main limiting factors on growth on different slopes were visible to a certain extent,but the differences in response of trees on different slopes gradually decreased,which might be caused by factors such as different slope directions and the change in diurnal temperature range.These results may provide information for forest protection and ecological construction in this region,and a scientific reference for future climate reconstruction.展开更多
华山松大小蠹(Dendroctonus armandi Tsai and Li)是中国特有种,是为害华山松的先锋型害虫,给秦巴山区森林生态造成了极大的破坏。由于其为害具有隐蔽性,发现时已造成华山松死亡。研究概述了现阶段华山松大小蠹的发生规律、入侵机制和...华山松大小蠹(Dendroctonus armandi Tsai and Li)是中国特有种,是为害华山松的先锋型害虫,给秦巴山区森林生态造成了极大的破坏。由于其为害具有隐蔽性,发现时已造成华山松死亡。研究概述了现阶段华山松大小蠹的发生规律、入侵机制和风险评估情况,并基于此对华山松大小蠹及大小蠹属的天敌昆虫进行了统计和预估分析,可为进一步开发和利用天敌昆虫提供参考依据。展开更多
基金supported by the National Natural Science Foundation of China (No.42077417,41671042).
文摘Global warming will affect growth strategies and how trees will adapt.To compare the response of tree radial growth to climate warming in different slope directions,samples of Pinus armandii Franch were collected and tree-ring chronologies developed on northern and western slopes from the Lubanling in the Funiu Mountains.Correlation analyses showed that two chronologies were mainly limited by temperatures in the previous June-August and the com-bination of temperatures and moisture in the current May-July.The difference of the climate response to slopes was small but not negligible.Radial growth of the LBLO1 site on the northern slope was affected by the combined maximum and minimum temperatures,while that of the LBLO2 site was affected by maximum temperatures.With regards to moisture,radial growth of the trees on the north slope was influenced by the relative humidity in the current May-July,while on the western slope,it was affected by the relative humidity in the previous June-August,the current May-July and the precipitation in the current May-July.With the change in climate,the effects of the main limiting factors on growth on different slopes were visible to a certain extent,but the differences in response of trees on different slopes gradually decreased,which might be caused by factors such as different slope directions and the change in diurnal temperature range.These results may provide information for forest protection and ecological construction in this region,and a scientific reference for future climate reconstruction.
文摘华山松大小蠹(Dendroctonus armandi Tsai and Li)是中国特有种,是为害华山松的先锋型害虫,给秦巴山区森林生态造成了极大的破坏。由于其为害具有隐蔽性,发现时已造成华山松死亡。研究概述了现阶段华山松大小蠹的发生规律、入侵机制和风险评估情况,并基于此对华山松大小蠹及大小蠹属的天敌昆虫进行了统计和预估分析,可为进一步开发和利用天敌昆虫提供参考依据。
