摘要
为了提高徐州市石灰岩山地侧柏人工林的生态和景观质量,采用树干解析法对云龙山侧柏人工林的生长规律进行研究。结果表明:所拟合的侧柏生长模型均具有较高的相关性,其中胸径和树高的最优生长模型为对数方程,材积的最优生长模型为逻辑斯谛方程。在第10年以前,侧柏的树高和胸径连年生长量与平均生长量最大,但目前林分尚未进入成熟期。侧柏林的胸径生长量出现3次较明显的生长高峰,且每隔一定年限发生一次,可用于指导间伐抚育期。这为今后侧柏人工林的综合经营与管理提供了一定的科学依据。
In order to improve the qualities of ecology and landscape of Platyclatdus orientalis plantation in limestone mountain in Xuzhou, the growth rhythm of Platyclatdus orientalis plantation in Yunlong Mountain was studied with the method of stem analysis. The results showed that： The logarithmic equation was superior to the growth process of diameter at breast height （DBH） and tree height in the P. orientalis plantation, and the Logistic equation was superior to the growth process of stem volume, and these growth model had a good correlation. The average and annual increment of DBH and tree height was highest in the 10-year-old plantation, but the stands were still not into maturity. There were three pronounced peaks appeared every several years in the growth process of DBH, which could be used to guide the thinning and tending. This study provided theoretical bases for the comprehensive management of P. orientalis plantation in future.
出处
《林业科技开发》
2009年第4期75-77,共3页
China Forestry Science and Technology
基金
科技部科技支撑计划项目"城郊生态风景林的诱导技术"(编号:2006BAD03A0602)
国家林业局"948"项目"风景林的经营管理技术引进"(编号:2006-4-27)
关键词
侧柏
生长规律
石灰岩山地
Platycladus orientalis
Growth rhythm
Limestone mountain
