| 杉木林取代杂木林后土壤腐殖质组成及特性变化的研究 |
| |
| 引用本文： | 杨玉盛,杨伦增.杉木林取代杂木林后土壤腐殖质组成及特性变化的研究[J].福建林学院学报,1996,16(2):97-100. |
| |
| 作者姓名： | 杨玉盛 杨伦增 |
| |
| 作者单位： | 福建林学院 |
| |
| 摘 要： | 本文通过对南平溪后安曹下杉木丰产林（７０年）和山脊上保留的杂木林土壤腐殖质组成（ＨＡ和ＦＡ）、胡敏酸光密度值、腐殖质不同结合形态比较分析结果表明：杉木林取代杂木林后土壤有机质和腐殖酸类含量下降，ＨＡ／ＦＡ和Ｅ４值降低，Ｅ４／Ｅ６值增大，土壤中松结合态（Ⅰ）和紧结合态（Ⅲ）腐殖质减少，土壤腐殖质质量下降趋势较为明显．这可能亦是杉木林连栽土壤肥力退化的主要原因之一．
|
| 关 键 词： | 土壤腐殖质 HA／FA值 松紧比（Ⅰ／Ⅲ） E_4值 杉木丰产林 杂木林 |
Changes in Composition and Properties of Soil Humus Following Replacement of Brood-leaved Forest by Chinese Fir Plantation |
| |
| Yang Yusheng, Yang Lunzeng, Yu Xintuo.Changes in Composition and Properties of Soil Humus Following Replacement of Brood-leaved Forest by Chinese Fir Plantation[J].Journal of Fujian College of Forestry,1996,16(2):97-100. |
| |
| Authors: | Yang Yusheng Yang Lunzeng Yu Xintuo |
| |
| Abstract: | The contrasting studies on humic composition (HA and FA),light density of humic acid,combined forms of humus in the soils under fast-growing Chinese fir plantation(70-year-old) and broad-leaved forest (remained at hill ridge) were carried out at Qihou, Fujian. The resulting effects following replacement of broad-leaved forest by Chinese fir plantation included decreased soil organic matter and humus,elevated E4/E6ratio, descended HA/FA ratio, E4 value, and both loosely and tightly combined humus contents. This may be one of the main reasons for soil degradation at the sites with continuous Chinese fir planting. |
| |
| Keywords: | soil humus HA/FA ratio proportion of loosely to tightly combined humus E4 value fast growing Chinese fir plantation broadleaved forest |
| 本文献已被 CNKI 维普 等数据库收录！ |
