摘要
通过野外实地调查与室内分析,研究了不同经营措施下红松林和杂木林的土壤物理性质、土壤水分变化情况。结果表明:红松林择伐区土壤自然含水量、饱和含水量较杂木林高;土壤容重、总孔隙杂木林高于红松林;红松林内土壤的最大、最小、毛管持水量等指标皆高于杂木林。择伐上层林木栽植的红松林对土壤的改良效果较皆伐造林和直接林冠下造林者好。中度抚育间伐的森林经营措施改良土壤效果显著。
Through field investigation ＆ indoor analysis, under different management measures, changes of soil physi-cal properties ＆ soil moisture of Pinus koraiensis and weed trees were studied. Result shows that., natural moisture content ＆ saturated water content of soil of selective cutting forest for Pinus koraiensis are higher than that of weed trees; soil bulk density,total porosity of weed trees are higher than that of Pinus koraiensis; maximum,minimum, capillary moisture and other indicators of soil are higher than that of Pinus koraiensis. Selectively cutting in the up-per layer of Pinus koraiensis has optimal soil improvement effect than clear cutting and directly plant under forest canopy. Effect of moderate thinning for forest management measures is significant to improve soil.
出处
《防护林科技》
2013年第6期4-6,共3页
Protection Forest Science and Technology
关键词
经营措施
间伐强度
采伐-更新方式
土壤改良效应
management measures
thinning intensity
harvesting-update
soil improvement effect
