桂北油茶早实丰产林营建现状调查

Investigation on the Status of Early Fruiting and High-Yield Camellia oleifera Forest Construction in the North of Guilin

为了了解桂北油茶早实丰产林的营建状况和促进油茶产业的发展。在桂北地区的龙胜县泗水乡、瓢里镇①、瓢里镇②,兴安县湘漓镇、高尚乡,灵川县灵田乡,资源县资源镇,灌阳县黄关镇、新圩镇,5个县设立9个样区,分别对油茶的生长量和产量进行调查。结果表明:桂北油茶早实丰产林营建状况良好。长林系列油茶在灵田乡的生长量最高,6年生平均树高2.69 m、平均冠径2.07 m,在瓢里镇②的产量最高,5年生平均株产量4.63 kg/株;岑软3号油茶在湘漓镇的生长量最高,5年生平均树高2.44 m,、平均冠径1.99 m,在资源镇产量最高,6年生平均株产量6.12 kg/株;湘林系列油茶在黄关镇的树高值最大,5年生平均树高2.27 m,在新圩镇的冠径最大,6年生平均冠径1.84 m,在黄关镇的产量最高,5年生平均株产量5.29 kg/株。根据调查结果认为:岑软3号品种适宜在资源县资源镇种植,湘林系列品种适宜在龙胜县泗水乡、灌阳县黄关镇和新圩镇种植,长林系列品种适宜在龙胜县瓢里镇②和灵川县灵田乡植。

In order to find out the construction status of the early fruit and high yield Camellia oleifera forest in the north of Guilin and promote the development of Camellia oleifera.Nine sample areas were set up in the north of Guilin,including Sishui township,Piaoli township①and Piaoli township②in Longsheng county,Xiangli township and Gaoshang township in Xing’an county,Lingtian township in Lingchuan county,Ziyuan township in Ziyuan county,Huangguan township and Xinxu township in Guanyang county.The growth and yield of Camellia oleifera were investigated in each sample area.The results show that the early fruit and high yield Camellia oleifera forest in the north of Guilin are in good condition.In the planting area of Changlin series Camellia oleifera,Lingtian township has the highest growth,the average height of 6-year old tree is 2.69 m and average crown diameter is 2.07 m,and Piaoli②township has the highest yield,the average yield of 5-year old tree is 4.63kg/plant.In the planting area of Cenruan 3 Camellia oleifera,Xiangli township has the highest growth,the average height of 5-year old tree is 2.44 m and average crown diameter is 1.99 m,and Ziyuan township has the highest yield,the average yield of 6-year old tree is 6.12kg/plant.In the planting area of Xianglin series Camellia oleifera,Huangguan township has the highest tree height,the average height of 5-year old tree is 2.27 m,Xinxu township has the largest crown diameter,the average crown diameter of 6-year old tree is 1.84 m,Huangguan township has the highest yield,the average yield of 5-year old tree is 5.29kg/plant.According to the investigation results,Cenruan 3 Camellia oleifera is suitable for planting in the Ziyuan township of Ziyuan county.Xianglin series Camellia oleifera is suitable for planting in the Sishui township of Longsheng county,Huangguan township and Xinxu township of Guanyang county.Changlin series Camellia oleifera is suitable for planting in the Piaoli②township of Longsheng county and Lingtian township of Lingchuan county.