【摘要】 通过对柑橘园内间作不同草种,对比分析不同生草间作处理对柑橘园温度及产量的影响,以期为优化柑橘园种植模式提供理论依据。采用野外定点定时平行对比观测法,研究柑橘园各间作试验区不同季节温度的变化规律。结果表明:5种生草间作处理在春、冬季气温高于裸地对照,在夏季和秋季气温低于裸地对照,春季黑麦草升温效果最好(0.9~3.6℃),夏季菊苣降温效果最好(0.3~3.0℃),秋季香矢车菊降温最好(1.4~2.6℃),冬季黑麦草升温效果最佳(0.7~3.1℃);5种生草间作处理在春、夏、秋3个季节土温低于裸地,在冬季土温高于裸地,其中春季以香矢车菊降温最大(0.3~3.8℃),夏季为黑麦草(1.2~4.7℃),秋季为柠檬罗勒(0.4~4.2℃),冬季黑麦草增温最大(1~2.2℃)。各处理各季节气温土温呈极显著相关,大多数生草处理区气温土温与产量呈正相关,对比分析各处理间的产量,以柠檬罗勒处理区产量最佳。初步认为,生草间作以柠檬罗勒处理区最优。更多还原

【Abstract】 Based on intercropping different grass species in the citrus orchard,a comparative analysis of the effects of different treatments of grass intercropping on the air temperature and yield of citrus groves was conducfed so as to provide a theoretical basis for optimizing the planting mode of citrus groves. Throughfield timing parallel contrast investigation,the variation of temperature in the intercropping experiment zones in different seasons was studied.The results showed that the air temperature in 5 intercropping treatments was higher than that in the control in spring and winter,lower than that in the control in summer and autumn,Lolium perenne had the best effect on raising air temperature in spring( 0.9-3.6 ℃),Cichorium intybus had the best effect on reducing air temperature in summer( 0.3-3 ℃),Centaurtea cyanns is the best grass to reduce air temperature in autumn( 1.4-2.6 ℃),Lolium perenne had the best effect on raising air temperature in winter( 0.7-3.1 ℃).The soil temperature in the 5 kinds intercropping treatments was lower than that in the control in spring,summer and autumn,higher than that in the control in winter,Centaurtea cyanns had the best effect on reducing soil temperature in spring( 0.3-3.8 ℃),Lolium perenne had the best effect on reducing soil temperature in summer( 1.2-4.7 ℃),Ocimum americannm had the best effect on reducing soil temperature in summer( 0.4-4.2 ℃),Lolium perenne had the best effect on rasing soil temperature in winter.In the treatments in different seasons a significantly positive correlation between air temperature and soil temperature was observed. Air temperature and soil temperature had positive correlation with yield in most treatment plots.The comparative analysis of the yields of the treatments showed that the treatment of Ocimum americannm had the highest yield.The initial view is that intercropping Ocimum americannm is the best treatment mode.更多还原