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廖文海, 曾春兴, 孙欧文, 姜轶, 吴家森, 蒋仲龙. 浙江省江山市不同森林类型枯落物持水性能[J]. 浙江林业科技, 2019, 39(6): 63-68.
引用本文: 廖文海, 曾春兴, 孙欧文, 姜轶, 吴家森, 蒋仲龙. 浙江省江山市不同森林类型枯落物持水性能[J]. 浙江林业科技, 2019, 39(6): 63-68.
LIAO Wen-hai, ZENG Chun-xing, SUN Ou-wen, JIANG-Yi, WU Jia-sen, JIANG Zhong-long. Water Holding Capacity of Litter under Different Forest Types in Jiangshan City[J]. Journal of Zhejiang Forestry Science and Technology, 2019, 39(6): 63-68.
Citation: LIAO Wen-hai, ZENG Chun-xing, SUN Ou-wen, JIANG-Yi, WU Jia-sen, JIANG Zhong-long. Water Holding Capacity of Litter under Different Forest Types in Jiangshan City[J]. Journal of Zhejiang Forestry Science and Technology, 2019, 39(6): 63-68.

浙江省江山市不同森林类型枯落物持水性能

Water Holding Capacity of Litter under Different Forest Types in Jiangshan City

  • 摘要: 2017年 10月,选取浙江省江山市典型地段的阔叶林、毛竹 Phyllostachys edulis 林、杉木 Cunninghamia lanceolata林、马尾松 Pinus massoniana林、针阔混交林、灌木林设立标准样地,研究不同森林类型枯落物持水性能。结果表明,6种不同森林类型枯落物储量为 7.86 ~ 25.64 t?hm-2,由大到小依次为针阔混交林>阔叶林>马尾松林>杉木林>毛竹林>灌木林,且枯落物厚度和储量大小排序一致;最大持水量变化在 11.19 ~ 33.42 t?hm-2,有效拦蓄率范围为 87.37% ~ 126.41%,有效拦蓄量由大到小依次为针阔混交林>阔叶林>杉木林>马尾松林>毛竹林>灌木林,含阔叶树种的森林枯落物的持水能力优于针叶林;枯落物持水量与浸泡时间呈对数函数关系,吸水速率与浸泡时间呈幂函数关系。

     

    Abstract: Standard sample plots were established in October of 2017 in broad-leaved forest, Phyllostachys edulis forest, Cunninghamia lanceolata forest, Pinus massoniana forest, mixed broadleaf and conifer forest, shrub in Jiangshan city, Zhejiang province, to study their litter water holding capacity. The results demonstrated that litter reserves ranged 7.86-25.64 t/ha, ordered by mixed broadleaf and conifer forest>broad-leaved forest> pine forest>Chinese fir forest>bamboo forest>shrub, and the litter thickness had positive relation with reserves. The largest capacity of water holding changed from 11.19 to 33.42 t /ha, and the effective water retention rate from 87.37% to 126.41%. The order of effective water retention was followed by mixed broadleaf and conifer forest (25.18 t/ha)>broad-leaved forest(22.38 t/ha)>Chinese fir forest(21.87 t/ha)>pine forest(19.01 t/ha)>bamboo forest(15.01 t/ha)>shrub(7.86 t/ha). The experiments resulted that broad-leaved forest had better water holding capacity than coniferous forest, water holding capacity of litter had logarithmic function with soaking time, and water absorption rate had power function relation with soaking time.

     

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