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[1]吕宸 宫渊波** 龚伟 车明轩 许蔓菁 康成芳 吴强.川西高寒山地灌丛草甸土壤水文效应特征[J].应用与环境生物学报,2021,27(02):1-13.[doi:10.19675/j.cnki.1006-687x.2020.04029]
 LV Chen,GONG Yuanbo**,GONG Wei,et al.Characteristics of Soil Hydrological Effects of Alpine Shrub Meadow in Western Sichuan[J].Chinese Journal of Applied & Environmental Biology,2021,27(02):1-13.[doi:10.19675/j.cnki.1006-687x.2020.04029]
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川西高寒山地灌丛草甸土壤水文效应特征()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
27卷
期数:
2021年02期
页码:
1-13
栏目:
研究论文
出版日期:
2021-04-25

文章信息/Info

Title:
Characteristics of Soil Hydrological Effects of Alpine Shrub Meadow in Western Sichuan
作者:
吕宸1 宫渊波1** 龚伟1 车明轩1 许蔓菁1 康成芳12 吴强3
1四川农业大学林学院,成都 611130
2甘肃省生态环境工程评估中心,兰州 730000
3泸州市水务局,泸州 6 46000
Author(s):
LV Chen1 GONG Yuanbo1** GONG Wei1 CHE Mingxuan1 XU Manjing1 KANG Chengfang1 2 WU Qiang3
1 College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
2 Gansu?Appraisal?Center?for?Eco-Environment?&?Engineering, Lanzhou 730000 , China
3 Luzhou Water Conservancy , Luzhou 646000, China
关键词:
灌丛草甸土壤物理性质持水性能入渗性能
Keywords:
shrub meadow soil physical properties water holding capacity infiltration performance
DOI:
10.19675/j.cnki.1006-687x.2020.04029
摘要:
土壤入渗和持蓄水分的水文功能是森林保持水土、涵养水源的基础。为揭示不同海拔和坡向土壤理化性质及水文效应的差异,选择折多山高寒山地灌丛草甸土壤为研究对象,测定土壤基本物理性质、持蓄水性能和入渗性能。结果表明:(1)坡向和海拔对土壤物理性质的影响主要作用于淋溶层;土壤容重总体表现为淀积层 > 淋溶层,半阴坡 > 半阳坡,最大为4 000 m半阴坡(1.21 g/cm3),最小为4 000 m半阳坡(0.77 g/cm3),土壤总孔隙度则表现出相反规律。(2)土壤自然贮水量、最大持水量、毛管持水量和最小持水量表现为淋溶层 > 淀积层,土壤涵蓄降雨量和有效涵蓄量表现为半阴坡 < 半阳坡;土壤最大持水量、毛管持水量、涵蓄降雨量和有效涵蓄量均表现为4 000 m半阳坡淋溶层最高,分别为1336(± 24.66)、1016(± 14.14)、710(± 26.98)和390(± 14.14) t/hm 2。(3)土壤初渗速率和稳渗速率总体表现为淋溶层 > 淀积层,半阴坡 < 半阳坡;土壤渗滤系数K10最大为4 200 m半阳坡淋溶层(7.41 mm/min),最小为4 000 m半阴坡淀积层(0.57 mm/min)。可见,不同海拔和坡向间土壤物理性质及水文功能有明显分异特征,土石混合介质土壤水文功能研究可能是今后该地区土壤水文的研究重点。
Abstract:
The hydrological function s of soil infiltration and water retention are the foundation of forest water and soil conservation. In order to investigate the differences of soil physical and chemical properties and hydrological effects under different altitudes and slopes aspects , the alpine shrub meadow soil was chosen as the research object in Zheduo Mountain. Soil basic physical properties, water holding capacity and infiltration performance were studied. Results showed (1) The influence of s lope aspect and altitude on soil physical properties was mainly affected on leached layer. The soil bulk density were generally greater in sediment layer and semi-shady aspect than leaching layer and semi-sunny aspect, The maximum is 4 000 m semi-shady slope (1.21 g/cm3), the minimum is 4 000 m semi-sunny slope (0.77 g/cm3), whereas the total soil porosity show ed the opposite pattern. (2) The natural soil water storage capacity, maximum water holding capacity, capillary water holding capacity, and minimum water holding capacity were greater in leaching layer than in sedimentary layer, while soil storage rainfall and effective storage capacity were higher in semi-sunny aspect than in semi-shady aspect; Soil maximum water holding capacity, capillary water holding capacity, cumulated rainfall and effective cumulated storage capacity were highest in leached layer at semi-sunny aspect under 4 000 m, was 1336( ± 24.66) 、1016(± 14.14) 、710(± 26.98)and 390( ± 14.14) t/hm 2. (3) The initial soil infiltration rate and steady infiltration rate were generally greater in leaching layer and semi-sunny slope than sedimentary layer and semi-shady slope; The soil infiltration coefficient K10 is a maximum of 4 200 m semi-slope leaching layer (7.41 mm / min) and a minimum of 4 000 m semi-shady slope sediment layer (0.57 mm / min). It could be seen that there were obvious differentiation of soil physical properties and hydrological functions under different altitudes and slope aspects, The research on soil hydrological function of soil-rock mixed media may be the focus of future research on soil hydrology in this area.

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备注/Memo

备注/Memo:
收稿日期 Received: 2020-4-13 接受日期 Accepted: 2020-05-29
四川省科技厅重点项目“川西折多山高寒生态脆弱区植被恢复与重建技术研究”(2015FZ0022)和四川省高校水土保持与荒漠化防治重点实验室建设项目资助
**通讯作者 Corresponding author (E-mail: gyb@sicau.edu.cn)
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更新日期/Last Update: 2020-07-03