摘要
分析了不同间伐强度对天然次生林凋落物的性质的影响。经过分析,不同间伐强度下年凋落量最大的为弱度间伐区。枯枝落叶贮量以弱度间伐区为最大,强度间伐区最小。凋落物分解转化率以强度间伐区最高,对照区最小。从养分归还看,强度间伐区全氮、全磷、全钾的归还量均最大。认为中度间伐下枯枝落叶性质最有利于天然次生林的可持续利用。
The results from the experiment showed that the most annual falling amount of forest was in ebb-thinning intensity,as well as the saving amount.The highest rate of decomposition and transformation appeared in the high-thinning intensity,while the lowest was in the antithesis area.According to the nutrient return,the most amount of total N,total P and total K all appeared in high-thinning intensity.So the properties of litter in mid-thinning intensity was the most adaptive to natural secondary forest.
出处
《土壤通报》
CAS
CSCD
北大核心
2007年第6期1096-1099,共4页
Chinese Journal of Soil Science
基金
辽宁省重点科技攻关项目:"辽东山区天然次生林保护与可持续经营技术研究"
项目编号:2001207002
关键词
间伐强度
天然次生林
凋落物
贮量
分解转化率
养分归还量
Thinning density
Natural secondary forest
Forest diversity
Litter
Growth
Nutrient return
