川西高山树线群落交错带地被物及土壤的水文效应

doi:10.11707/j.1001-7488.20110301

林业科学 ›› 2011, Vol. 47 ›› Issue (3): 1-6.doi: 10.11707/j.1001-7488.20110301

• 论文 • 下一篇

川西高山树线群落交错带地被物及土壤的水文效应

刘洋¹, 张健¹, 杨万勤¹, 吴福忠¹, 黄旭¹, 闫帮国¹, 文维全², 胡开波³

1. 四川林业生态工程省级重点实验室四川农业大学林学院雅安 625014;2. 川西林业局阿坝州 623102;3. 四川省林业调查规划院成都 610081

收稿日期:2010-03-13 修回日期:2011-01-24 出版日期:2011-03-25 发布日期:2011-03-25
通讯作者: 张健

Ground Coverage and Soil Hydrological Action of Alpine Treeline Ecotone in Western Sichuan

Liu Yang¹, Zhang Jian¹, Yang Wanqin¹, Wu Fuzhong¹, Huang Xu¹, Yan Bangguo¹, Wen Weiquan², Hu Kaibo³

1. Key Laboratory of Forestry Ecological Engineering Forestry College of Sichuan Agricultural University Ya’an 625014;2. Forestry Authority of Western Sichuan Aba 623102,;3. Forestry Surveying and Planning Institute of Sichuan Chengdu 610081

Received:2010-03-13 Revised:2011-01-24 Online:2011-03-25 Published:2011-03-25

摘要/Abstract

摘要：

采用样带法,以川西米亚罗林区鹧鸪山高山树线群落交错带为研究对象,分析交错带地被物和土壤的持水特性及其变化规律。结果表明:地被物最大持水量为33.55~140.03 t ·hm^-2,暗针叶林>林线>树线>密灌丛>草甸>疏灌丛,暗针叶林枯落物最大持水量显著高于疏密灌丛和草甸; 林线地被物拦蓄降水的作用最明显; 暗针叶林以苔藓层和枯落物层具有最大有效拦蓄效果,林线和树线以苔藓层具有最大有效拦蓄效果,疏密灌丛以枯落物层具有最大有效拦蓄效果,高山草甸草本层、苔藓层、枯落物层有效拦蓄效果相当; 0~30 cm土壤饱和蓄水量都在2 000 t ·hm^-2以上,暗针叶林>林线>疏灌丛>密灌丛≈草甸>树线; 各群落0~30 cm土层非毛管持水量为575.89~801.46 t ·hm^-2,表现为暗针叶林>疏灌丛>树线>密灌丛>林线>草甸。

关键词: 树线交错带, 地被物, 最大持水量, 有效拦蓄量

Abstract:

In this paper, ground coverage and the soil water-holding capacity of Zhegu alpine treeline ecotone in Miyaluo forest region of western Sichuan were studied using belt transect method. The results showed that maximum water holding capacity of ground coverage was 33.55-140.03 t ·hm^-2 with a trend of dark-conifer forest> timberline>treeline >dense shrub > apline meadow > sparse scrub. Maximum water holding capacity of litter was significantly higher in dark-conifer forest than in shrubs and meadow. Interception capacity of ground coverage in timberline was most obvious; from the perspective of modified interception amount, moss and litter layers were both dominant in the dark-conifer forest, the moss layer was dominant in the treeline and timberline, the litter layer was dominant in the shrub, interception capacity of herb layer, moss layer and litter layer in alpine meadow was all similar. Maximum water holding capacity of 0-30 cm soil layer was higher than 2 000 t ·hm^-2 with a trend of dark-conifer forest> timberline > sparse scrub >dense shrub≈ apline meadow>treeline. In 0-30 cm soil layers, non-capillary moisture capacity was 575.89-801.46 t ·hm^-2 with a trend of dark-conifer forest> sparse shrub> treeline> dense shrub> timberline> apline meadow.

Key words: alpine treeline ecotone, ground coverage, maximum water holding capacity, modified interception amount

中图分类号:

S715.3

刘洋;张健;杨万勤;吴福忠;黄旭;闫帮国;文维全;胡开波. 川西高山树线群落交错带地被物及土壤的水文效应[J]. 林业科学, 2011, 47(3): 1-6.

Liu Yang;Zhang Jian;Yang Wanqin;Wu Fuzhong;Huang Xu;Yan Bangguo;Wen Weiquan;Hu Kaibo. Ground Coverage and Soil Hydrological Action of Alpine Treeline Ecotone in Western Sichuan[J]. Scientia Silvae Sinicae, 2011, 47(3): 1-6.

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川西高山树线群落交错带地被物及土壤的水文效应

Ground Coverage and Soil Hydrological Action of Alpine Treeline Ecotone in Western Sichuan

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