| 不同坡位火力楠人工林水源涵养能力的比较 |
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| 引用本文： | 林上杰.不同坡位火力楠人工林水源涵养能力的比较[J].亚热带农业研究,2013,9(2). |
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| 作者姓名： | 林上杰 |
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| 作者单位： | 福建省尤溪国有林场,福建尤溪,365100 |
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| 摘 要： | 通过野外调查和试验测定,研究了不同坡位火力楠人工林林冠层、灌木层、草本层、凋落物层和土壤层的水源涵养能力差异。研究表明:(1)不同坡位火力楠人工林不同层次持水量表现为土壤层>林冠层>凋落物层>林下植被层,林分总持水量主要集中在土壤层,0-60 cm土层持水量占林分总持水量的98%以上;(2)下坡位火力楠人工林林冠层、林下植被层、凋落物层生物量最大,其次为中坡位,上坡位则最低;(3)下坡位火力楠人工林林冠层、林下植被层、凋落物层及土壤层最大持水量最大,上坡位最低;(4)下坡位火力楠人工林综合水源涵养能力最大,其次为中坡位和上坡位。
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| 关 键 词： | 火力楠人工林 坡位 水源涵养能力 |
Comparison of water conservation capability of Michelia macclurei plantations at different slope positions |
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| LIN Shang-jie.Comparison of water conservation capability of Michelia macclurei plantations at different slope positions[J].Subtropical Agriculture Research,2013,9(2). |
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| Authors: | LIN Shang-jie |
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| Abstract: | Water conservation capability is one of the important functions in forest ecosystem.Through field investigation and plot experiment,the water conservation capability of canopy layers,shrub layers,herb layers,litterfall layers and soil layers in Michelia macclurei plantations at different slope positions were studied in this paper.The results were showed as follows.(1) The water holding capacity of different layers of the M.macclurei plantations was in the following order as soil layer > canopy layer > litterfall layer > groundcover layer,the total water holding capacity of the stands was mainly contained in the soil layer,and the water holding capacity in the 0-60 cm soil layer accounted for 98% of the total stand water holding capacity.(2) The biomass of canopy layer,groundcover layer and litterfall layer of lower-slope M.macclurei plantations were larger than those of the middle-slope and upper-slope.(3) The water conservation capability of canopy layer,groundcover layer,litterfall layer and soil layer of lower-slope M.macclurei plantations were larger than those of the middle-slope and upper-slope.(4) The water conservation function of the lower-slope of M.macclurei plantations was larger than those of the middle-slope and upper-slope M.macclurei plantations. |
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| Keywords: | Michelia macclurei plantations slope position water conservation capability |
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