摘要
为了评价不同经营措施对油松人工林枯落物持水能力的影响，通过带状皆伐、封禁抚育、孔状择伐、修枝抚育、引进灌木这5种措施，并以未封禁作为对照的实验方法，分别在抚育开始、抚育后2a、抚育后4a对枯落物的储量、最大含水量、自然含水量和有效拦蓄量进行了测定和评价。结果表明：（1）枯落物储量和持水性能随抚育时间的延长呈增加趋势。（2）不同经营措施下，抚育后2和4a的枯落物储量大小顺序均为：带状皆伐〉封育恢复〉孔状择伐〉修枝抚育〉引进灌木〉未封禁；枯落物最大含水量在抚育后1～2a内排序为：引进灌木〉封育恢复〉带状皆伐〉孔状择伐〉修枝抚育，抚育后2～4a排序为：引进灌木〉带状皆伐〉封育恢复〉孔状择伐〉修枝抚育〉未封禁；自然含水量在抚育后1～2a排序为：封育恢复〉引进灌木〉孔状择伐〉带状皆伐〉修枝抚育〉未封禁，在抚育后2～4a表现出：引进灌木〉封育恢复〉孔状择伐〉带状皆伐〉修枝抚育〉未封禁；有效拦蓄量变化趋势表现为：带状皆伐〉孔状择伐〉引进灌木〉封育恢复〉修枝抚育〉未封禁。
To evaluate the influence of different management measures on the water-holding capacity of Pi- nustabulaeformis Carr. plantation litter, the litter reserves, the maximum moisture, the natural moisture and the effective interception amount were measured and analyzed respectively at the time of tending begin- ning, tending after 2 years and tending after 4 years. During the process of experiment, the following five measures on Pinus tabulaeformis Carr. plantation were used： clearing cutting with banding, banned tend- ing, selective cutting with hole shape, branch pruning and introducing shrub, and with the not banned tend- ing as a control group. The results showed that： （1〉 The litter reserves and moisture increased with the time. （2〉 Under the different management measures, the litter reserves after 2 years and 4 years followed as the sequence： clearing cutting with banding〉banned tending〉selective cutting with hole shape〉branch pruning〉introducing shrub〉 not banned tending; the maximum moisture of the litter after 1 to 2 years ranked as. introducing shrub〉banned tending〉clearing cutting with banding〉selective cutting with hole shape〉branch pruning, and after 2 to 4 years, introducing shrub〉clearing cutting with banding〉banned tending〉selective cutting with hole shape.branch pruning〉not banned tending; （3〉 The natural moisture of the litter after 1 to 2 years followed as. banned tending〉introducing shrub〉selective cutting with hole shape.clearing cutting with banding〉branch pruning〉not banned tending, and after 2 to 4 years, introdu- cing shrub〉banned tending〉selective cutting with hole shape.clearing cutting with banding〉branch prun- ing〉not banned tending; （4〉 The effective interception amount ranked as： clearing cutting with banding〉selective cutting with hole shape.introducing shrub〉banned tending〉branch pruning〉not banned tending.
出处
《水土保持通报》
CSCD
北大核心
2013年第6期103-106,共4页
Bulletin of Soil and Water Conservation
基金
国家"十二五"科技支撑计划项目"‘三北’地区水源涵养林体系构建技术研究与示范"(2011BAD38B05)
关键词
油松
经营措施
枯落物
持水性能
Pinus tabulaeformis Carr.
management measure
litter
water-holding capacity
