摘要
为揭示樟子松人工林水量平衡规律,在辽宁省章古台地区,选择林龄为32 a、密度为404株/hm2的樟子松人工林,利用2 a(2010、2011)的观测结果,采用水量平衡方法对樟子松人工林的降水分配进行研究。结果表明:樟子松人工林内降水量、树干茎流量、林冠截留量分别为422.7、0.8、28.1 mm,占同期降水量的93.6%、0.2%、6.2%。樟子松蒸腾耗水量、枯落物+林下植被+土壤蒸散量、土壤贮水量变化量分别为116.1、287.3、20.1 mm,占同期降水量的25.7%、63.6%、4.5%;樟子松蒸腾耗水量占林地内蒸散量的28.8%,枯落物+林下植被+土壤蒸散量占林地内蒸散量的71.2%。
To uncover the water balance law of Pinus sylvestris var.mongolica planted forest in Zhanggutai area in Liaoning province, and to provide scientific direction for the management,based on the data and information collected from 2010 and 2011,the precipitation distribution and evapotranspiration of the ecosystem were studied in 32 years old （and 404 plants per ha.） planted forest by using the method of water-balance.The results showed： the gross of throughfall, stemflow, and the canopy interception was 422.7mm,0.8mm, 28.1mm separately, the proportionment compare to the gross of annual precipitation（451.5ram）was 93.6%,0.2%,6.2%.The crown transpiration,Liter＋ Understory vegetation＋Soil evapotranspiration （LUS）, and soil water storage were 116. 1mm, 287.3mm,20. lmm separately, the proportionment compare to the gross of annual precipitation（451.5mm） was 25.7%,63.6%,4.5%.he crown transpiration was 28.8% of evapotranspiration of forest land,and LUS was 71.2%.
出处
《辽宁林业科技》
2012年第6期8-11,14,共5页
Liaoning Forestry Science and Technology
基金
林业公益性行业科研专项经费(201004063)
国家十一五科技支撑项目(2006BAD08A11106)
关键词
水量平衡
樟子松
人工林
章古台
water balance
Pinus sylvestris vat. mongoliea
planted forest
Zhanggutai area
