干旱区生态环境知识资源中心(Arid): 引入阔叶树种枯落叶对陕北风沙区针叶林土壤极化的防治效应

Arid

	引入阔叶树种枯落叶对陕北风沙区针叶林土壤极化的防治效应
其他题名	Control effects of introducing leaf litter of broad-leaved trees on soil polarization under pure stands of needle-leaved forests in the windblown sand region of northern Shaanxi
	刘增文; 米彩红; 潘岱立; 杨森浩; 李卓青; 罗伟
来源期刊	西北农林科技大学学报. 自然科学版
ISSN	1671-9387
出版年	2011
卷号	39 期号:5 页码:103-109
中文摘要	【目的】研究不同针、阔叶树种的种间关系,为通过针、阔混交或枯落叶客置来防治人工针叶纯林土壤的极化提供科学依据。【方法】在位于陕北黄土高原北部半干旱风沙区的靖边县,选择覆盖度达到90%～100%的22年生油松和25年生樟子松纯林,建立20 m20 m的标准地,以5样方(1 m1 m)混合采样法采集0～10 cm土层腐殖质土壤和附近不同针、阔叶树种的当年枯落叶后,进行室内混合培养试验。【结果】油松纯林会导致土壤养分含量、部分酶活性降低及真菌、放线菌数量明显减少的负向极化发展趋势,樟子松纯林会导致土壤部分酶(脲酶、蔗糖酶)活性降低和细菌数量明显减少的负向极化发展趋势。引入阔叶树种枯落叶防治油松纯林土壤极化的优先顺序为:引入白榆、沙棘和旱柳最好,其次为紫穗槐,而小叶杨、刺槐和柠条则均不适宜引入;引入阔叶树种枯落叶防治樟子松纯林土壤极化的优先顺序为:引入沙棘最好,其次为柠条,引入小叶杨和白榆效果不明显,而刺槐、紫穗槐和旱柳则均不适宜引入。【结论】不同阔叶树种枯落叶对针叶林地土壤性质的影响效应有明显差异;筛选出了防治陕北风沙区针叶林土壤极化的阔叶树种。
英文摘要	【Objective】 Study about the interspecific relationship can provide scientific basis for forming mixed forest or fertilyzing leaf litter with other tree speices to control soil polarizations of needl-leaved forest.【Method】 In Jingbian county which is situated in the semi-arid,windblown sand region of northern Shaanxi Province,after establishing standard plots(20 m20 m)in forests of 22-year-old Pinus tabulaeformis and 25-year-old Pinus sylvestris var.mongolica whose coverage arrived at 90%-100% and sampling mixed humus soil of 0-10 cm depth with 5 small plots(1 m1 m)in every forest and leaf litter of different needle or broad-leaved trees nearby,experiments of incubation mixing humus soil of pure forests with leaf litter were carried out in laboratory.【Result】 Pure forest of P.tabulaeformis would result in negative soil polarization including depletion in soil nutrients,decline in a few enzyme activities and amounts of fungi and actinomycetes.Pure forest of P.sylvestris var.mongolica would result in negative soil polarization including decline in a few enzyme activities and amounts of bacteria.The priority order of introducing other tree species to control soil polarization under forest of P.tabulaeformis is as follows:Ulmus pumila,Hippophae rhamnoides and Salix matsudana are better,Amorpha fruticosa second,but Populus simonii,Robinia pseudoacia and Caragana microphylla not suitable.The priority order of introducing other tree species to control soil polarization under forest of P.sylvestris var.mongolica is as follows:H.rhamnoides is better,C.microphylla second,P.simonii and U.pumila not significant,R.pseudoacia,A.fruticosa and S.matsudana not suitable.【Conclusion】 The effects of broad leaf litter on soil are very different and suitable tree species tree which can be introduced to control soil polarization under pure stands of needle-leaved forests in the windblown sand region of northern Shaanxi are selected.
中文关键词	半干旱风沙区 ; 油松 ; 樟子松 ; 土壤退化 ; 土壤极化
英文关键词	semi-arid windblown sand area Pinus tabulaeformis Pinus sylvestris var.mongolica soil degradation soil polarization
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:4293521
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227217
作者单位	西北农林科技大学资源环境学院, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	刘增文,米彩红,潘岱立,等. 引入阔叶树种枯落叶对陕北风沙区针叶林土壤极化的防治效应[J]. 西北农林科技大学,2011,39(5):103-109.
APA	刘增文,米彩红,潘岱立,杨森浩,李卓青,&罗伟.(2011).引入阔叶树种枯落叶对陕北风沙区针叶林土壤极化的防治效应.西北农林科技大学学报. 自然科学版,39(5),103-109.
MLA	刘增文,et al."引入阔叶树种枯落叶对陕北风沙区针叶林土壤极化的防治效应".西北农林科技大学学报. 自然科学版 39.5(2011):103-109.