不同经营措施下落叶松林枯落物持水能力的研究  

Study on Different Management Measures of Litter Water-holding Performance of Larix principis-rupprechtii

作　　者：张宁[1] 张春茹[2] 凌继华[2] 黄永辉[2] 郭宾良 张建华[2] 

机构地区：[1]河北农业大学,河北保定071000 [2]河北木兰围场国有林场管理局北沟林场,河北承德068450

出　　处：《黑龙江农业科学》2015年第8期89-92,共4页Heilongjiang Agricultural Sciences

基　　金：河北省科技厅自然科学基金资助项目(15227652D);河北省科技厅软科学资助项目(13457525)

摘　　要：为了探究不同经营措施下落叶松林枯落物的持水能力,以修枝抚育、引进灌木、孔状择伐、封闭抚育、带状皆伐5种措施,以未封禁作为对照,通过对未抚育、抚育后2a、抚育后4a落叶松林枯落物的储量、最大含水量、自然含水量、有效拦蓄量等指标进行测定。结果表明：落叶松人工林枯落物储量的大小,在采取措施以后2a与4a的表现出的状态均为：带状皆伐〉封育恢复〉孔状择伐〉修枝抚育〉引进灌木〉未封禁。在经过抚育以后4a间枯落物最大持水量大小分别为：引进灌木〉封育恢复〉带状皆伐〉孔状择伐〉修枝抚育〉未封禁。在经过改造措施的林分自然含水量均表现出高于对照区域,在改造的前两年,自然含水量大小为：封育恢复〉引进灌木〉孔状择伐〉带状皆伐〉修枝抚育,2~4a表现出的自然含水量的大小为：引进灌木〉封育恢复〉孔状择伐〉带状皆伐〉修枝抚育。在经过抚育改造之后的林分,有效持水量的大小排序为：带状皆伐〉孔状择伐〉引进灌木〉封育恢复〉修枝抚育。In order to explore the different management measures on Larix principis-rupprechtii under the litter water holding capacity to pruning and tending, five measures were used, taking no tending 2 a and 4 a litters of reserves after tending, the maximum moisture content, natural water content, effective impounding and other indicators were measured. The results showed that the reserves of litter after 2 a and 4 a of taking measures exhibited states were as follows： clearcutting〉enclosure recovery〉hole shape selective cuttingS〉pruning and tending〉introduced shrub〉not banned. After tending maximum water holding capacity of 4 a litter were：introduction of shrubs〉enclosure recovery〉cleareutting：〉hole shape selective cutting〉 pruning and tending〉 not banned. After the transformation measures natural moisture content exhibited higher than control area, the first two years of reconstruction, the natural moisture of litter：fencing restore〉introduction of shrubs〉 hole shape selective eutting〉clearcutting〉 pruning and tending, within 2 -4 a the natural water content showed： introduction of shrubs〉enclosure recovery〉hole shape selective cutting〉clearcutting〉 pruning and tending. After tending transformation,water-holding capacity order： clearcutting〉hole shape selective cutting〉introducction of shrub〉enclosure recovery〉pruning and tending.

关 键 词：落叶松 经营措施 枯落物 持水性能 

分 类 号：S714.7[农业科学—林学]