| 黄土高原油松刺槐人工林对土壤肥力影响的研究 |
| |
| 引用本文： | 薛泉宏,李瑞雪.黄土高原油松刺槐人工林对土壤肥力影响的研究[J].陕西林业科技,1995(2):21-25,5. |
| |
| 作者姓名： | 薛泉宏 李瑞雪 |
| |
| 作者单位： | 西北农业大学 |
| |
| 基金项目： | “八五”国家科技攻关专题 |
| |
| 摘 要： | 研究了黄土高原油松、刺槐人工林对土壤的培肥效应，结果表明：油松、刺槐人工林能显著提高土壤肥力水平，降低土壤ＰＨ，１８龄油松１．２ｍ＾２及３３龄刺槐１．６ｍ＾２根区土壤断面的有机质，全氮、有效氮、有效钾、ＣＥＣ均值无林对照分别提高５７．８％、６８．６％、１０９．３％、２８．９％、５４．５％及７４．３％，１２３．６％、２８５．３％、４２．４％、６３．７％，ｐＨ降低１４．４％及２．９％，油松，刺槐林对土
|
| 关 键 词： | 黄土高原 造林 人工林 土壤肥力 油松 刺槐 |
THE IMPROVMENT OF THE PINUS TABULAEFORMIS AND ROBINIA PSEUDOACACIA PLANTATION TO THE SOIL FERTILITY ON THE LOESS PLATEAU |
| |
| Xue Quanhong,Li Ruixue,FengLixtao.THE IMPROVMENT OF THE PINUS TABULAEFORMIS AND ROBINIA PSEUDOACACIA PLANTATION TO THE SOIL FERTILITY ON THE LOESS PLATEAU[J].Shaanxi Forest Science and Technology,1995(2):21-25,5. |
| |
| Authors: | Xue Quanhong Li Ruixue FengLixtao |
| |
| Abstract: | The improvement of the Pinus tabulaeformis and Robinia pseudoacacia plantation to soil fertility on the loess plateau was investigated.The results indicated that:(1)The soil fertility can be enhanced greatly by the plantation.The average values of soil organic matter,total nitrogen,available nitrogen,available potassium,CEC were enhanced by 57.8%,68.6%,109.3%,28.9%,54.4%in the soil profil(1.2m2) of the 18-yearsold Pinus tabulaefrmis,and 74.3%,123.6%,285.3%,42.4%,63.7% in the soil profil(1.6m2) of the 33-years-old Robinia pseudoacacia plantations.while,the soil PH decreased by 14.4% and 2.9% in the Pinus tabulaeformis and Robinia pseudoacacia plantations respectively.(2)The changing tendency of the improvement of the plantations with soil depth can be described by the moddle of y=A Bln h. |
| |
| Keywords: | Loess plateau Afforestation plantation soil fertility |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
