| 封山育林对杉木人工林林下植被物种多样性恢复的影响 |
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| 引用本文： | 蔡道雄,卢立华,贾宏炎,何日明.封山育林对杉木人工林林下植被物种多样性恢复的影响[J].林业科学研究,2007,20(3):319-327. |
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| 作者姓名： | 蔡道雄 卢立华 贾宏炎 何日明 |
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| 作者单位： | 中国林业科学研究院热带林业实验中心,广西,凭祥,532600 |
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| 摘 要： | 通过对杉木纯林进行密度调控,并采取封育和非封育管理6 a,结果显示:短期的封山育林对杉木林分的整体状况没有产生明显的影响,但对其林下植被的物种多样性及植被的生长产生了较显著的影响,在封育区林下植物有60科、101属、116种,植被的总盖度达85%,而非封育区林下植物只有49科、78属、88种,植被的总盖度仅达60%;封育区与非封育区比,封育区林下植物种数增加了28种,增量为31.82%,植被总盖度增加了25%,且多了1层高度＞2 m的木本植被层.主要植物特征值分析显示:封育区林下植物的相对密度、相对盖度及重要值等特征值较高的种数都比非封育区多,所占的比例也高;在封育区,对叶榕的重要值最高,达100.43%,且重要值≥35%的种有16种,占其林下植物总种数的13.79%,而在非封育区,断肠草的重要值最高,仅达34.77%,重要值≥35%的种为零;封育区林下植物的优势度比非封育区更为明显.
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| 关 键 词： | 封山育林 杉木人工林 林下植被 特征值 |
| 文章编号： | 1001-1498（2007）03-0319-09 |
| 收稿时间： | 2006-11-17 |
| 修稿时间： | 2006-11-17 |
Th e In fluences of C losing for Afforesta tion on Vegetation DiversityRestora tion under Ch inese F ir P lan ta tion |
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| CAI Dao-xiong,LU Li-hu,JIA Hong-yan and HE Ri-ming.Th e In fluences of C losing for Afforesta tion on Vegetation DiversityRestora tion under Ch inese F ir P lan ta tion[J].Forest Research,2007,20(3):319-327. |
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| Authors: | CAI Dao-xiong LU Li-hu JIA Hong-yan and HE Ri-ming |
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| Institution: | Experimental Center of Tropical Forestry, CAF, Pingxiang 532600, Guangxi, China |
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| Abstract: | By density control and 6 years. closed and non-closed managemen t for Ch inese fir pure stands, it wasfound tha t short-term c losing had no sign ificant influence on the overall performance of Chinese fir p lantation, butremarkably affected the vegetation b iodiversity and growth under fores.t In closed area, therewere 116 plant speciesbe longing to 101 genera of 60 families, with the vegetation coverage 85%, wh ile in the non2c losed area, therewereon ly 88 p lant species be longing to 78 genera of 49 families, the vege tation coverage was about 60% . Furthermore,there existed a woody vegetation layer with the height> 2 m in closed area. The resu lt of key trait value analysisshowed that the re lative density, re lative coverage and some other important tra its in closed area were h igher thanthat in non-closed area. In c losed area, F icus hispida had the highest importance value: 100. 43%, and other 16species had the importance value no less than 35%, wh ich occup ied 13. 79% of tota l undergrowth species. In non-closed area, Gelsemium elegans had the highest importance va lue ( 34. 77% ) and therewere no specieswith importance value \ 35%. The dominance of undergrowth in closed area wasmore obvious than that in non-closed area. |
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| Keywords: | Closing for afforestation Chinese fir plantation undergrowth trait value |
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