| 华北落叶松人工林侵蚀沟内植物多样性研究 |
| |
| 引用本文： | 王广海,;王艳军,;黄龙生,;金春生,;刘丽颖.华北落叶松人工林侵蚀沟内植物多样性研究[J].河北林果研究,2014(3):245-248. |
| |
| 作者姓名： | 王广海 ;王艳军 ;黄龙生 ;金春生 ;刘丽颖 |
| |
| 作者单位： | [1]河北省木兰围场国有林场管理局,河北围场068450; [2]河北农业大学林学院,河北保定071000 |
| |
| 基金项目： | “十二五”农村领域国家科技计划“华北土石山区森林可持续经营技术研究与示范”（2012BAD2280304）. |
| |
| 摘 要： | 为进行林下侵蚀沟的植被恢复与生态保育,以冀北山地典型的华北落叶松人工林为研究对象,对林下侵蚀沟内植物多样性进行了研究。结果表明:侵蚀沟内平均物种丰富度约为13.03,低于沟外,物种组成主要为耐干旱瘠薄物种,无明显优势种;沟内群落密度为131.3株/m2,明显低于沟外的211.6株/m2;沟内物种均匀度指数高于沟外,但两者的物种多样性指数无明显差异。对比侵蚀沟两侧坡面多样性可知,半阴坡耐阴喜湿植物重要值较高,丰富度和多样性均高于半阳坡,而均匀度指数无明显差异。
|
| 关 键 词： | 华北落叶松 人工林 侵蚀沟 物种多样性 |
Study on plant diversity in erosion gullies in Larix principis-rupprechtii plantations |
| |
| Institution: | Wang Guanghai, Wang Yanjun, Huang Longsheng, Jin Chunsheng, Liu Liying (1 Mulanweichang National Forestry Adminitration of Hebei Province, Weichang 068450,China; 2 College of Forestry, Agricultural University of Hebei, Baoding 071000,China) |
| |
| Abstract: | Taking Larix principis-rupprechtii plantations for example ,species diversity in erosion gullies was studied in order to restore vegetation and conserve species in erosion gully in forests .The results showed that ：the average species abundance inside is 13 .03 ,10 .3%lower than outside the gully .The majority of species is drought resistance and can survive at poor soils .T here is no dintinctly dominant species among them .Individual intensity is about 131 .3 per square meter ,lower than that outside the gully about 211 .6 .The uniformity index inside is 7 .8% higher than outside ,and there is no significant difference between the two species diversity index . The importance value , the abundance and the diversity of shady tolerant plant on half shady slope are higher than that on half sunny slope ,and there is no significant difference of uniformity index between the two slopes . |
| |
| Keywords: | Larix principis-rupprechtii plantation erosion gully species diversity |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
