[1]何周窈,等.金沙江干热河谷区坡面剑麻的水土保持效应[J].山地学报,2018,(05):731-739.[doi:10.16089/j.cnki.1008-2786.000369]
 HE Zhouyao,SU Zheng'an*,XIONG Donghong,et al.Effects of Agave americana on Soil and Water Conservation of Slope in Dry-Hot Valley of Jinsha River[J].Mountain Research,2018,(05):731-739.[doi:10.16089/j.cnki.1008-2786.000369]
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金沙江干热河谷区坡面剑麻的水土保持效应()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2018年05期
页码:
731-739
栏目:
山地环境
出版日期:
2018-11-30

文章信息/Info

Title:
Effects of Agave americana on Soil and Water Conservation of Slope in Dry-Hot Valley of Jinsha River
文章编号:
1008-2786-(2018)5-731-09
作者:
何周窈1 2苏正安1*熊东红1王 勇3杨鸿琨1 4
1.中国科学院、水利部 成都山地灾害与环境研究所 & 中国科学院 山地灾害与地表过程重点实验室,成都 610041; 2.四川农业大学 林学院,成都 611130; 3.四川农业大学 水利水电学院,四川 雅安 625014; 4.西南石油大学 地球科学与技术学院,成都 610500
Author(s):
HE Zhouyao12 SU Zheng'an1* XIONG Donghong1 WANG Yong3 YANG Hongkun14
1.Key Laboratory of Mountain Hazards and Earth Surface processes & Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; 2.Forestry College, Sichuan Agricultural University, Chengdu, Sichuan 6111
关键词:
干热河谷 剑麻 产流产沙 径流系数 水土保持效应
分类号:
S154
DOI:
10.16089/j.cnki.1008-2786.000369
文献标志码:
A
摘要:
为查明剑麻的水土保持效应,以金沙江干热河谷作为研究区域,通过径流小区定位观测法,分别观测了10°和20°坡面上种植剑麻的产流产沙特征。结果表明:(1)元谋县2014-2016年,年均降雨量为659.46 mm,年均降雨天数为82天。(2)三年间10°剑麻地和裸地平均径流深分别为101.91 ±7.56 mm和236.70±9.06 mm,剑麻地比裸地减少56.95%; 20°剑麻地和裸地平均径流深分别为152.78±8.12 mm和252.20±10.47 mm,剑麻地比裸地减少39.42%。(3)2014-2016年,10°剑麻地平均径流系数仅为0.23±0.17,裸地为0.50±0.17,剑麻地比裸地减少了54.00%; 20°的剑麻地与裸地平均径流系数分别为0.36±0.16和0.53±0.17,两者相比减少32.08%。综上所述,剑麻不仅拥有明显的拦沙作用,其截流效应也十分显著,在金沙江干热河谷区表现出良好的水土保持效应。(4)观测期间10°坡面上剑麻地和裸地的平均土壤侵蚀模数分别为355.27±31.86 t/(km2.a)和1788.68±153.11 t/(km2.a),剑麻地相比裸地减少80.14%; 20°坡面上剑麻地平均土壤侵蚀模数为2023.29±189.22 t/(km2.a),裸地为4506.14±362.70 t/(km2.a),两者相比减少55.10%。

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备注/Memo

备注/Memo:
收稿日期(Received date):2018-01-26; 改回日期(Accepted date): 2018-07-13
基金项目(Foundation item):国家重点研发计划(2017YFC0505102); 国家自然科学基金(41401313、41571267、41701324); 国家重大基础研究项目(973项目)(2015CB452704)。[National Key Research and Development Program of China(2017YFC0505102); National Natural Science Foundation of China(41401313, 41571267, 41701324); National Key Basic Research and Development Program of China(973 Program)(2015CB452704)]
作者简介(Biography):何周窈(1994-),女,四川雅安人,硕士研究生,主要研究方向为植被恢复和生态效益。 [HE Zhouyao(1994-), female, born in Ya'an, Sichuan province, M.Sc.candidate, research on vegetation restoration and ecological efficiency] E-mail: thezhouyaom@163.com
*通讯作者(Corresponding author):苏正安(1980-),男,四川江油人,博士,硕士生导师,主要从事土壤侵蚀和水土保持研究。[SU Zheng'an(1980-), male, born in Jiangyou, Sichuan province, Ph.D., M.Sc.supervisor, research on soil erosion and soil and water conservation] E-mail: suzhengan@imde.ac.cn
更新日期/Last Update: 2018-11-30