| 麻竹人工林水文生态效应 |
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| 引用本文： | 谢锦忠,傅懋毅,马占兴,肖贤坦,黄品华.麻竹人工林水文生态效应[J].林业科学研究,2005,18(6):682-687. |
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| 作者姓名： | 谢锦忠 傅懋毅 马占兴 肖贤坦 黄品华 |
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| 作者单位： | 中国林业科学研究院亚热带林业研究所,浙江,富阳,311400;福建省南靖县林业局,福建,南靖,363600 |
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| 基金项目： | 1995-1999年国际竹藤组织（INBAR）资助项目“退化地上的竹子农用林业模式研究”的一部分 |
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| 摘 要： | 在福建南靖连续4a对1995年春在杉木采伐迹地上营造的株行距为3m×4m、4m×5m和5m×6m3种密 度的麻竹试验林进行水文生态效应观测。结果分析表明:(1)麻竹林冠截持量与降水量和林分密度均呈正相关,而 秆茎流和林内降水量与降水量呈正相关,与林分密度呈负相关。密度为825丛·hm-2的麻竹林的年林冠平均截持 量和截持率为155.2 mm和14．61％,林内平均降水量和降水率为829．0 mm和78．11％,竹秆茎流量和茎流率为 77.3mm和7.31％。(2)麻竹林地表枯落物具有吸持其自身干质量2．8倍水量的潜在能力。(3)3种密度麻竹林的 0-60 cm土壤层最大潜在蓄水量为315．3-326．3 mm,略低于毛竹林367．9mm。(4)麻竹林地表径流和泥沙流 失量与降水量呈正线性相关,与林分密度呈负相关;竹林密度为825丛·hm-2的麻竹林年地表平均径流量、土壤侵 蚀模数是密度为330丛·hm-2的麻竹林的0．55、0．45倍,其NO3-、NH4 、PO43-、K 等养分年流失量则分别是密 度为330丛·hm-2的麻竹林的0．58、0．49、0．36、0．49倍。
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| 关 键 词： | 麻竹 林冠截持 秆茎流 径流 水文生态效应 |
| 文章编号： | 1001-1498（2005）05-0682-06 |
| 收稿时间： | 11 4 2004 12:00AM |
| 修稿时间： | 2004-11-04 |
Hydro-ecological Effects of Dendrocalamus latiflorus Stands |
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| XIE Jin-zhong,FU Mao-yi,MA Zhan-xing,XIAO Xian-tan and HUANG Pin-hua.Hydro-ecological Effects of Dendrocalamus latiflorus Stands[J].Forest Research,2005,18(6):682-687. |
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| Authors: | XIE Jin-zhong FU Mao-yi MA Zhan-xing XIAO Xian-tan and HUANG Pin-hua |
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| Institution: | Research Institute of Subtropical Forestry, CAF, Fuyang 311400, Zhejiang, China;Research Institute of Subtropical Forestry, CAF, Fuyang 311400, Zhejiang, China;Forest Bureau of Nanjing County, Fujian Province, Nanjing 363600, Fujian, China;Forest Bureau of Nanjing County, Fujian Province, Nanjing 363600, Fujian, China;Forest Bureau of Nanjing County, Fujian Province, Nanjing 363600, Fujian, China |
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| Abstract: | Three experimental stands of Dendrocalamus latiflorus Munro with different planting space,such as3m×4m,4m×5 m, and 5 m x6 m, were established on cutover of Chinese fir, in Nanjing county, Fujian Province, where the hydro-ecological effects of D. latiflorus stand have been monitored continuously for 4 years. The results showed that:(1) The canopy rainfall interception of D. latiflorus stand had a positive relationship with both precipitation and stand density; both the throughfall and stem flow had a positive relationship with precipitation, and a negative relationship with stand density. In D. latiflorus stand with density of 825 clump·hm-2, the canopy rainfall interception and its interception rate were 155.2 mm·year-1 and 14.61% ; the throughfall and its rate were 829.0 mm·year-1 and 78.11% ; and the stem flow and its coefficient were 77.3 mm·year-1 and 7.31%. (2) The litter of D. latiflorus stand had a potential ability to absorb water equaling to Z 8 times of its own dry mass. (3)The potential maximum soil water storage of D. latiflorus stand with three stand densities was 315.3-326.3 mm, which was less than that of Moso bamboo stands (367.9 mm). (4)Both the soil surface runoff and the sand loss of D. latiflorus stand had a positive relationship with precipitation and had a negative relationship with stand density. In D. latiflorus stand with density of 825 clump·hm-2, the soil surface runoff and soil erosion were 0.55, 0.45 times of that in D. latiflorus stand with density of 330 clump·hm-2 respectively, and the loss of the main nutrients such as NO3-,NH4+,PO43-and K+ were 0.58, 0.49, 0.36 and 0.49 times of that in D. latiflorus stand with density of 330 clump·hm-2 respectively. |
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| Keywords: | Dendrocalamus latiflorus canopy interception stem flow runoff hydro-ecological effects |
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