干旱区生态环境知识资源中心(Arid): 半干旱典型草原区白榆防护林的密度与生物量试验

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	半干旱典型草原区白榆防护林的密度与生物量试验
其他题名	The density and biomass experiment for Ulmus pumila shelter forest in the semi-arid typical grassland
	王玉魁 1; 杨文斌 2; 卢琦2 ; 褚建民 2; 曹燕丽 2; 崔向慧 2; 王立兵 2; 高旭彪 3
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2010
卷号	24 期号:11 页码:144-150
中文摘要	白榆是典型草原区的乡土树种.在内蒙古四子王旗,通过对典型草原区人工营造的30a的白榆草牧场防护林及其与林下草本植被生物量的调查,初步得出如下结果:1)密度(d)与标准木的叶量,材积量,胸径存在如下关系:y=A*Bd的指数关系;当200株/hm2密度时,白榆防护林生物量最大,{L-End}>1000株/hm2后出现严重衰退.2)密度{L-End}>1000株/hm2后,造林8a后林木的正常生长受到制约,{L-End}>400株/hm2后15a受到制约,而密度在200株/hm2左右时,30a时,标准木的胸径和材积生长量与孤立木的差距小于10%.3)白榆防护林年总生长物量是对照草地的3~4.5倍,其中叶量约占总生物量的92%~77%,密度在200株/hm2左右最大;林下草本植被的生物量低于对照草地61%~92%,密度为200株/hm2左右的白榆防护林单位面积木材蓄积量最大.4)白榆防护林林边行木的叶量和材积量比林内高152.52%~162.0%和28.8~81.7%,1050株/hm2的边行木的胸径和材积生长量分别比2100株/hm2的高41.2%和118.1%
英文摘要	The Ulmus pumila is the agrestic tree in the typical grassland area. Through studying of the biomass of different density of Ulmus pumila shelter forest and understory vegetation in Inner Mongolia,we have concluded the following results:1)The density and leaf biomass, tree volume,DBH of the shelter forest exists the relation of y=A*Bd;At 200 stubs/hm2 densities, the Ulmus pumila shelter forest biomass is the biggest, and appears the serious decline after over 1000 stubs/hm2.2)If the density is over 1000 stubs/hm2, wood normal growth will be subjected after 8 years. If the density is over 400 stubs/hm2, wood normal growth will be subjected after 15 years. But if the density is about 200 stubs/hm2, the difference of DBH and tree volume growth increments of the standard wood of 30 years and isolated wood is smaller in 10%.3)The total growth increments of Ulmus pumila shelter forest is 3-4.5 times of the control of rangeland, among them the leaf biomass takes 92-77% of the total biomass, and the leaf biomass is the biggest in 200 stubs/hm2;the herbage plants biomass is 61-92% less than the comparison rangeland, and the Ulmus pumila shelter unit timbers quantity is the biggest in density of 200 stubs/hm2.4)The Ulmus pumila shelter forest edge leaf biomass and tree volume are of 152.52-162.0% and 28.8-81.7% than the center’s, and the tree volume and DBH of the 1050 stubs/hm2 are of 41.2 and 118.1% 2100 stubs/hm2’s higher than respectively
中文关键词	典型草原区 ; 白榆 ; 密度 ; 生物量
英文关键词	typical grassland Ulmus pumila biomass
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:4071952
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225186
作者单位	1.北京林业大学水土保持学院, 北京 100083, 中国; 2.中国林业科学研究院林业新技术研究所/林业研究所;;中国防治荒漠化研究与发展中心, 国家林业局林木培育重点实验室, 北京 100091, 中国; 3.国家水利部水土保持评估中心, 北京 100080, 中国
推荐引用方式 GB/T 7714	王玉魁,杨文斌,卢琦,等. 半干旱典型草原区白榆防护林的密度与生物量试验[J]. 北京林业大学,2010,24(11):144-150.
APA	王玉魁.,杨文斌.,卢琦.,褚建民.,曹燕丽.,...&高旭彪.(2010).半干旱典型草原区白榆防护林的密度与生物量试验.干旱区资源与环境,24(11),144-150.
MLA	王玉魁,et al."半干旱典型草原区白榆防护林的密度与生物量试验".干旱区资源与环境 24.11(2010):144-150.