| 冀北山地油松林枯落物的持水特性研究 |
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| 引用本文： | 王海东,;李明桂,;张丽玮,;徐学华. 冀北山地油松林枯落物的持水特性研究[J]. 河北林果研究, 2014, 0(3): 263-266 |
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| 作者姓名： | 王海东, 李明桂, 张丽玮, 徐学华 |
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| 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 |
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| 基金项目： | 河北省科技计划项目“常绿景观植物引进筛选和山地景观林生态美化功能研究”（11236713D-x）;河北省科技计划项目“冀北山地油松生态景观林结构调整技术研究”（12237510）. |
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| 摘 要： | 为了阐明冀北山地油松林枯落物的持水规律,对其枯落物蓄积量、持水量、吸水速率和有效拦蓄量进行了研究。结果表明:油松林枯落物的未分解层和半分解层蓄积量分别为2.95t/hm2和11.58t/hm2。油松林枯落物半分解层和未分解层持水量在浸泡6h和4h时基本达到饱和;吸水速率随着时间的延长逐渐下降。油松未分解层和半分解层枯落物最大持水量分别为2.28t/hm2、14.23t/hm2,而有效拦蓄量分别为1.69t/hm2和10.77t/hm2。
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| 关 键 词： | 油松林 枯落物 蓄积量 持水量 吸水速率 |
Water holding capacity of litters of Pinus tabulae f ormis forests in the northern mountains of Hebei Province |
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| Affiliation: | WANG Haidong, Li Minggui, ZHANG Liwei, XU Xuehua (1 Mulanweichang National Forestry Administration of Hebei Province, Weichang 068450, China 2 College of Forestry, Agricultural University of Hebei, Baoding 071000, China) |
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| Abstract: | In order to clarify the water holding capacity of litters of Pinus tabulaeformis forest in the northern mountains of Hebei Province ,the litter stock ,water holding capacity , water absorption rate and modified interception amount at Mulanweichang were studied .The result showed that ：the litter amount of Pinus tabulae f ormis forest at undecomposed layer and semi decomposed layer was 2 .95 t/hm2 and 11 .58 t/hm2 . Water absorption rate decreased gradually with the immersion time increasing .when immersed for 4 h and 6 h , respectively ,both undecomposed litter ,and semidecomposed litter were saturated ,with the maximum water holding capacity and effective interception amount of 2 .28 t/hm2 and 14 .23 t/hm2 ,and 1 .69 t/hm2 and 10 .77 t/hm2 respectively . |
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| Keywords: | Pinus tabulae f ormis forest forest litters litter stock water holding capacity water absorption rate |
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