摘要
通过对留杉栽阔模式林分、对照的杉木萌芽林土壤腐殖质及肥力的研究结果表明：３３年生留杉栽阔模式林分土壤有机质和全Ｎ含量增加，土壤生化活性加强，土壤速效性养分供应量增强；土壤腐殖质中ＨＡ／ＦＡ值、Ｅ４值上升，Ｅ４／Ｅ６值变小；土壤松结合态和紧结合态腐殖质含量及其比值增加，土壤腐殖质活化度增强，土壤肥力得到明显改善，从而促进了模式林分中杉木的生长。
The soil humus and fertility of the management patttern of planting broad-leaved tree with reserving Chinese fir (PBWRC) and the Chinese fir stand regenerated from sprouts (CPRS) were studied. The results indicated that the soil organic matter and total N of 33-year-old PBWRC stand increased, the soil biochemistry activity strengthened and the amount of available nutrient supply enhanced. The HA/FA, E 4 increased, E 4 /E 6 descended, loosely and tightly combined humus contents and its ratio ascended and the activation of soil humus enhanced. All above show that the soil fertility has heen improved obviously which promotes tree growth of PBWRC stand.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1998年第6期32-36,共5页
Journal of Northeast Forestry University
基金
福建省自然科学基金
关键词
杉木
萌芽林
土壤腐殖质
土壤肥力
Pattern of planting broad-leaved tree with reserving Chinese fir (PBWRC)
Chinese fir stand regenerated from sprouts (CPRS)
Soil humus
Soil fertility
