沙棘林能源价值及平茬复壮技术研究  

The technology of stumping and rejuvenation and firewood carbon value of Xanthoceras sorbifolia economic forest

作　　者：党晓宏[1] 高永[1] 汪季[1] 虞毅[2] 刘阳[1] 赛呼[3] 王淮亮[1] 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010019 [2]国际竹藤网络中心,北京100102 [3]内蒙古师范大学,呼和浩特010019

出　　处：《干旱区资源与环境》2013年第2期176-180,共5页Journal of Arid Land Resources and Environment

基　　金：国家科技支撑(2011BAC07B02-03);内蒙古农业大学创新团队(NDTD2010-11)资助

摘　　要：沙棘作为鄂尔多斯地区一种生态经济树种,但是生长到一定年龄就会出现"老化"现象,挂果量明显下降,病虫害严重,使得经济收入严重受损。通过现地平茬试验,基于平茬前沙棘的树高、冠幅、地径的调查以及平茬后的树高、冠幅、分枝数以及生物量测定数据为依据,研究发现沙棘最佳平茬树龄为8龄,留茬高度在距地表10cm为佳,茬口进行涂漆处理后萌芽生长状况较好;采用WZR-1TCⅡ型电脑自动热量计测定不同林龄沙棘植株以及各器官的热值研究结果表明:沙棘是一种高热值能源树种,去灰分热值大致在19-20KJ.g-1。沙棘各器官平均去灰分热值由大到小依次为:根﹥枝﹥叶﹥皮。最后对2010年鄂尔多斯地区营造的7118.27hm2沙棘生态经济林在生长8龄平茬后地上部分的能源价值进行估算,其能源价值相当于3.995×106t原煤的价值。As a kind of ecological economic tree species in Ordos region,Xanthoceras sorbiforlia appears aging phenomenon,the fruit set decreases significantly and diseases and insect pests aggravate seriously,which lead to economic income serious damage.This experiment conducted an stumping,and the effects were observed in field.The study found the best stumping age is 8 years old and the best stubble height is 10cm,meanwhile after painting process to the flat stubble section,germination ability will be strong.As to the calorific value of different ages of Xanthoceras sorbiforlia and different organs,is shows that Xanthoceras sorbiforlia is a kind of high calorific value energy resources plant,its average ash content of plant is about 19-20KJ·g-1.The average ash-free caloric value from high to low is rootbranchleafbark.

关 键 词：沙棘 平茬 复壮 能源价值 

分 类 号：S793.606[农业科学—林木遗传育种]