| 植物篱篱前淤积带与篱下土坎土壤水库和抗剪性能对比研究 |
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| 引用本文： | 翟婷婷,谌芸,李铁,向明辉,王润泽,唐菡,周涛,刘枭宏. 植物篱篱前淤积带与篱下土坎土壤水库和抗剪性能对比研究[J]. 生态学报, 2020, 40(2): 599-607 |
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| 作者姓名： | 翟婷婷 谌芸 李铁 向明辉 王润泽 唐菡 周涛 刘枭宏 |
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| 作者单位： | 西南大学资源环境学院, 三峡库区生态环境教育部重点实验室, 重庆 400715,西南大学资源环境学院, 三峡库区生态环境教育部重点实验室, 重庆 400715,西南大学资源环境学院, 三峡库区生态环境教育部重点实验室, 重庆 400715,遂宁市水土保持试验站, 遂宁 629006,西南大学资源环境学院, 三峡库区生态环境教育部重点实验室, 重庆 400715,西南大学资源环境学院, 三峡库区生态环境教育部重点实验室, 重庆 400715,西南大学资源环境学院, 三峡库区生态环境教育部重点实验室, 重庆 400715,西南大学资源环境学院, 三峡库区生态环境教育部重点实验室, 重庆 400715 |
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| 基金项目： | 国家自然科学基金项目（41501288）;中央高校基本科研业务费专项（XDJK2018B044）;重庆市基础科学与前沿技术研究一般项目（cstc2017jcyjAX0472）;西南大学资源环境学院"光炯"项目（201719） |
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| 摘 要： | 为探究紫色土坡地植物篱篱前淤积带与篱下土坎处土壤贮水能力和抗剪性能的差异及变化规律,选取四川遂宁水土保持试验站10°新银合欢植物篱小区（L10）、10°香根草植物篱小区（V10）和15°香根草植物篱小区（V15）,分上、中、下坡采集篱前淤积带和篱下土坎（无下坡）0-30 cm耕层土壤,测定土壤基本物理性质和土壤抗剪强度,计算土壤水库总库容、滞洪库容、内摩擦角φ和粘聚力c。结果表明：（1）同一篱带,篱前淤积带土壤保水贮水能力优于篱下土坎,其中篱前淤积带土壤自然含水率较之篱下土坎显著高6.52%-12.13%。（2）同一篱带,篱下土坎土壤透气性以及土壤抗剪性能均优于篱前淤积带,其中篱下土坎土壤非毛管孔隙度较之篱前淤积带显著高5.61%-57.70%。（3）同一小区,篱前淤积带保水贮水能力均表现为下坡 > 中坡 > 上坡,而篱下土坎均为上坡>中坡。其中V15小区上述趋势最明显,其下坡篱前淤积带（上坡篱下土坎）的土壤总库容和滞洪库容分别为上坡篱前淤积带（均为中坡篱下土坎）的1.04倍和1.03倍（1.02倍）。（4）同一小区,篱前淤积带土壤内摩擦角、粘聚力c和抗剪强度均表现为上坡 > 中坡 > 下坡,篱下土坎均为上坡>中坡。其中V10小区上述趋势最明显,其上坡篱前淤积带（上坡篱下土坎）上述指标依次为下坡篱前淤积带（均为中坡篱下土坎）的1.06、1.09倍和1.05倍（1.04倍）。（5）一个雨季前后篱前淤积带和篱下土坎土壤透气性、保水贮水能力及抗剪性能均无显著变化。
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| 关 键 词： | 植物篱 微地形 淤积带 土壤总库容 抗剪强度 |
| 收稿时间： | 2018-07-06 |
| 修稿时间： | 2019-10-03 |
Comparative study on soil water reservoirs and shear strength between the sedimentation zone in front of and ridge behind hedgerows |
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| ZHAI Tingting,CHEN Yun,LI Tie,XIANG Minghui,WANG Runze,TANG Han,ZHOU Tao and LIU Xiaohong. Comparative study on soil water reservoirs and shear strength between the sedimentation zone in front of and ridge behind hedgerows[J]. Acta Ecologica Sinica, 2020, 40(2): 599-607 |
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| Authors: | ZHAI Tingting CHEN Yun LI Tie XIANG Minghui WANG Runze TANG Han ZHOU Tao LIU Xiaohong |
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| Affiliation: | College of Resources and Environment, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Southwest University, Chongqing 400715, China,College of Resources and Environment, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Southwest University, Chongqing 400715, China,College of Resources and Environment, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Southwest University, Chongqing 400715, China,Soil and Water Conservation Experimental Station in Suining, Suining 629006, China,College of Resources and Environment, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Southwest University, Chongqing 400715, China,College of Resources and Environment, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Southwest University, Chongqing 400715, China,College of Resources and Environment, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Southwest University, Chongqing 400715, China and College of Resources and Environment, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Southwest University, Chongqing 400715, China |
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| Abstract: | |
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| Keywords: | hedgerows micro-topography sedimentation zone soil total storage capacity shear strength |
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