[1]梁会,田美荣,钱金平,等.基于风蚀模型的宁夏土壤风蚀特征及影响因素[J].水土保持研究,2019,26(01):34-40.
　LIANG Hui,TIAN Meirong,QIAN Jinping,et al.Soil Wind Erosion Characteristics and Influence Factors in Ningxia Based on Wind Erosion Model[J].Research of Soil and Water Conservation,2019,26(01):34-40.
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基于风蚀模型的宁夏土壤风蚀特征及影响因素

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年01期 页码: 34-40 栏目: 出版日期: 2019-02-28
Title:
Soil Wind Erosion Characteristics and Influence Factors in Ningxia Based on Wind Erosion Model
作者:
梁会1,2, 田美荣2, 钱金平1, 张慧2, 宋杰3
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重点实验室, 石家庄 050024;
2. 环境保护部 南京环境科学研究所, 南京 210042;
3. 山东省环境规划研究院, 济南 250000
Author(s):
LIANG Hui1,2, TIAN Meirong2, QIAN Jinping1, ZHANG Hui2, SONG Jie3
1. College of Resources and Environmental Sciences, Laboratory of Environmental Evolution and Ecological Construction of Hebei Province, Hebei Normal University, Shijiazhuang 050024, China;
2. Nanjing Institute of Environmental Science, ministry of Environmental Protection, Jiangsu, Nanjing 210042, China;
3. Shandong Academy for Environmental Planning, Jinan 250000, China
关键词:
土壤风蚀; 时空变化; 影响因素分析; 宁夏
Keywords:
soil erosion; spatiotemporal variation; factor analysis; Ningxia
分类号:
X826
摘要:
为了阐明宁夏土壤风蚀情况，基于第一次全国水力普查中推荐的风蚀经验模型，通过野外土壤采样及风洞试验修正模型参数，运用遥感、地理信息系统技术，对2000-2015年土壤风蚀强度时空变化特征进行分析，运用变异系数法确定各影响因子权重，明确影响风蚀的主要因子。结果表明：空间分布上，微度、轻度风蚀的区域分布在石嘴山市西部，银川市西部和东部，吴忠市中北部，中卫市中部，固原大部分地区，中度及以上风蚀的区域分布在沙坡头区、灵武市、盐池县、平罗县、兴庆区、贺兰县、金凤区的沙地、荒漠地区；时间序列上，研究期间风蚀发生总面积和风蚀强度整体呈下降趋势；按风蚀地类分，风蚀强度排序为：沙地 > 耕地 > 裸地 > 草地 > 林地，平均风蚀强度分别为：47.39 t/（hm2·a），5.77 t/（hm2·a），1.82 t/（hm2·a），1.48 t/（hm2·a），1.00 t/（hm2·a）；银川、吴忠、固原、中卫的风蚀强度的主要影响因子为土壤湿度，次要影响因子为植被覆盖度，石嘴山风蚀强度的主要影响因子为超过起沙风速累积时间。
Abstract:
In order to illustrate the soil erosion characteristics in Ningxia, based on the wind erosion model which was recommend in the first national water resources census, and the model parameters revised by field soil samples and wind tunnel test, the spatiotemporal variation characteristics of soil wind erosion in Ningxia from 2000 to 2015 were analyzed by using remote sensing and geographic information system technology. Meanwhile, the main factor influencing wind erosion was confirmed by utilizing variation coefficient method. The results showed that the regions of mild and light wind erosion intensity included the west of Shizuishan, the west and east of Yinchuan, the central-north of Wuzhong, the central of Zhongwei and the most parts of Guyuan; the regions of moderate and higher wind erosion intensity included the sand and desert area of Shapotou, Lingwu, Yanchi, Pingluo, Xingqing, Helan and Jinfeng. In terms of time series, the total area and intensity of wind erosion decreased during the study period. In terms of wind erosion land type, the wind erosion intensity decreased in the order:sand > arable land > bare ground > grassland > woodland, of which average wind erosion intensities were 47.39 t/(hm2·a), 5.77 t/(hm2·a), 1.82 t/(hm2·a), 1.48 t/(hm2·a), 1.00 t/(hm2·a), respectively. The major impact factor on wind erosion intensities in Yinchuan, Wuzhong, Guyaun and Zhongwei was soil moisture, the vegetation coverage was the next factor affecting the wind erosion intensities in these areas. The major impact factor on wind erosion intensities in Shizuishan was the accumulative time of exceeding the wind velocities causing sand move.

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备注/Memo

收稿日期:2018-3-12;改回日期:2018-4-24。
基金项目:国家重点研发计划项目"区域生态安全综合评估预警技术与示范"（2017YFC0506606）
作者简介:梁会(1992-),女,河北邢台人,在读研究生,主要研究方向为区域生态保护与修复。E-mail:l_hui908@163.com
通讯作者:钱金平(1963-),男,山东滕州人,教授,主要从事环境生态学研究。E-mail:hbsdhbs@163.com

更新日期/Last Update: 1900-01-01