[1]胡国云,郭中领,王仁德,等.河北坝上低山区坡地灌丛沙堆形态与沉积特征[J].水土保持研究,2016,23(04):251-256.
　HU Guoyun,GUO Zhongling,WANG Rende,et al.Morphology and Sediment Characteristics of Nebkhas on Slopes in Bashang Region, Hebei Province[J].Research of Soil and Water Conservation,2016,23(04):251-256.
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河北坝上低山区坡地灌丛沙堆形态与沉积特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年04期 页码: 251-256 栏目: 出版日期: 2016-08-28
Title:
Morphology and Sediment Characteristics of Nebkhas on Slopes in Bashang Region, Hebei Province
作者:
胡国云1, 郭中领1, 王仁德2, 邹学勇3, 邱梦如1, 王红营1, 彭帅1, 魏立涛1, 常春平1
1. 河北师范大学 资源与环境科学学院 河北省环境演变与生态建设省级重点实验室, 石家庄 050024;
2. 河北省科学院 地理科学研究所, 石家庄 050011;
3. 北京师范大学 地表过程与资源生态国家重点实验室 北京师范大学 防沙治沙教育部工程研究中心, 北京 100875
Author(s):
HU Guoyun1, GUO Zhongling1, WANG Rende2, ZOU Xueyong3, QIU Mengru1, WANG Hongying1, PENG Shuai1, WEI Litao1, CHANG Chunping1
1. College of Resources and Environment Sciences, Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Normal University, Shijiazhuang 050024, China;
2. Institute of Geographic Science, Hebei Academy of Sciences, Shijiazhuang 050011, China;
3. State Key Laboratory of Earth Surface Processes and Resource Ecology, MOE Engineering Research Center of Desertification and Blown-Sand Control, Beijing Normal University, Beijing 100875, China
关键词:
河北坝上; 灌丛沙堆; 坡地; 形态和沉积特征
Keywords:
Bashang region; Hebei Province; nebkhas; slope location and slope aspects; morphological and sediment characteristics
分类号:
P931.3
摘要:
通过野外调查和室内试验分析的方法对河北坝上康保县北部低山区坡地小叶锦鸡儿（Caragana microphylla Lam.）灌丛沙堆形态及沉积特征进行了研究，结果表明：从坡顶到坡脚，灌丛沙堆形态参数（长、宽、高、水平尺度、长宽比和底面积）趋于增加；迎风坡坡顶、坡中、坡脚的灌丛沙堆形态参数大于背风坡相应坡位沙堆形态参数；从坡脚到坡顶，沙堆表层沉积物粒径（> 0.1 mm）的百分含量趋于减少，坡地迎风坡相应坡位沙堆沉积物粒径 > 0.1 mm的百分含量大于背风坡；灌丛沙堆表层土壤含水率及硬度从坡脚到坡顶逐渐变大，坡地迎风坡坡相应坡位沙堆表层土壤水分和硬度均小于背风坡；而容重从坡脚到坡顶趋于减小，且迎风坡坡相应部位沙堆容重大于背风坡。因此，低山坡地灌丛沙堆形态发育过程中除受风力强度、沙源和灌丛植被因素影响外，坡位和坡向也是一个重要的影响因素。
Abstract:
The morphology and sediment characteristics of nebkhas on slopes were studied by means of field observation and sampling in Bashang region, Hebei Province. The results show that:(1) from the top to the foot of the investigated hills, the morphology parameters of nebkhas gradually increase, and the morphology parameters of nebkhas for the windward slope is greater than those for the leeward slope; (2) from the foot to the top of the investigated hills, the percentage of the coarse grain (diameter >0.1 mm) of the surface sediments of the nebkhas gradually decreases, the percentage of the coarse grain (diameter > 0.1 mm) of the surface sediments in the windward slope is greater than that in the leeward slope; (3) from the foot to the top of the investigated hills, the surface soil moisture and the soil hardness of the nebkhas become greater, and the surface soil moisture and hardness of the windward slope are less than those of the leeward slope; (4) from the foot to the top of the investigated hill, the bulk density becomes less, and the bulk density of the windward slope is greater than that of the leeward slope. In addition to the three main factors of cover, wind strength, and sand, the site condition is an important factor which influences the formation and evolution of nebkhas on slopes.

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备注/Memo

收稿日期:2015-07-02;改回日期:2015-07-30。
基金项目:河北省软科学项目（13454213D）；国家自然科学基金重点项目（41330746）；国家自然科学基金青年项目（41301291）
作者简介:胡国云(1989-),女,河北邯郸人,在读硕士,主要从事建设与灾害防治。E-mail:15233611847@163.com
通讯作者:常春平(1969-),男,河北康保人,教授,博士,硕士生导师,主要从事水土保持与环境评价方面的研究和教学工作。E-mail:changchunping@126.com

更新日期/Last Update: 1900-01-01