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基于风蚀模型的张家口市风力侵蚀时空分布特征
Alternative TitleSpatial temporal variation characteristics of wind erosion in Zhangjiakou City, northern China, using a wind erosion model
王晓艺1,2; 苏正安2; 马菁1; 汪言在3; 刘翊涵2,4; 周涛2,5; 王俊杰2,5; 何周窈2,6; 伍佐1,2
2020
Source Publication草业科学
ISSN1001-0629
Volume37Issue:7Pages:1405-1415
SubtypeArticle
Contribution Rank2
Abstract为明确张家口市风蚀现状,利用遥感影像、数字高程模型(DEM)以及土地利用等数据,结合风蚀预报经验模型,计算了张家口市2005-2015年近10年风力侵蚀强度时空分布特征。结果表明:1)该市土壤风力侵蚀主要为轻度侵蚀和中度侵蚀,2005年轻度侵蚀面积11 784.90 km~2,占总面积的32.41%,中度侵蚀面积2 461.93 km~2,占总面积的6.77%,而2015年仅有轻度侵蚀,面积为7 322.08 km~2,占总面积的20.14%,2005-2015年,该市风力侵蚀面积呈下降趋势;2)中度风力侵蚀主要集中分布在康保、张北、尚义等县;3)该市风力侵蚀主要集中在坝上地区,2005、 2010、2015年风蚀面积分别为9 520.47、8 086.85和5 674.71 km~2,而坝下地区2005、2010、2015年风蚀面积分别为4 762.36、2 808.34和1 647.37 km~2,呈逐渐下降趋势;4)耕地和草地的风蚀面积及其占比均较高,且各种土地利用类型均以轻度侵蚀为主,不同土地利用类型风蚀面积也均呈逐渐减少趋势。研究结果可为张家口市水土流失治理以及生态环境建设提供科学依据。
Other AbstractThe spatial temporal variation characteristics of wind erosion during 2005, 2010 and 2015 in Zhangjiakou City were assessed using a wind erosion model, combined with remote sensing images, digital elevation model(DEM)data and land use data.The results showed that slight erosion was estimated at 11 784.90 km~2 and accounted for 32.41% of the total area in 2005, while moderate erosion was estimated at 2 461.93 km~2 and accounted for 6.77% of the total area .This indicated that slight and moderate erosions were the primary wind erosion intensities in Zhangjiakou City.In 2015, slight erosion was estimated at 7 322.08 km~2 and accounted for 20.14% of the total area.This indicated that the area of wind erosion has a different intensity, showing a downward trend in Zhangjiakou City from 2005 to 2015.Moderate wind erosion was mainly distributed in Kangbao County, Shangyi County and Zhangbei County of Zhangjiakou City.Wind erosion area in Bashang Region was 9 520.47 km~2, 8 086.85 km~2 and 5 674.71 km~2 in 2005, 2010, and 2015, respectively, In the Bacia Region, it was 4 762.36 km~2, 2 808.34 km~2 and 1 647.37 km~2 in the Baxia Region in the 2005, 2010, and 2015, respectively.These result indicated that the area of wind erosion gradually declined in the Bashang and Baxia Region.The area of wind erosion and the proportion of wind erosion in each land use type was relatively higher in grassland and cultivated land than in other land use types.The intensity of wind erosion for each land use type was high for slight erosion.To conclude, the area of wind erosion for each land use type gradually declined from 2005 to 2015.These results could provide a scientific basis for soil erosion control and ecological environment construction in Zhangjiakou City in the future.
Keyword风力侵蚀 时空变化 张家口市 土地利用类型
DOI10.11829/j.issn.1001-0629.2020-0133
Indexed ByCSCD
Language中文
CSCD IDCSCD:6800692
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/50755
Collection山地灾害与地表过程重点实验室
中国科学院水利部成都山地灾害与环境研究所
Corresponding Author苏正安
Affiliation1.四川农业大学水利水电学院;
2.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;
3.重庆师范大学地理与旅游学院;
4.四川师范大学地理与资源科学学院;
5.中国科学院大学;
6.四川农业大学林学院
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
王晓艺,苏正安,马菁,等. 基于风蚀模型的张家口市风力侵蚀时空分布特征[J]. 草业科学,2020,37(7):1405-1415.
APA 王晓艺.,苏正安.,马菁.,汪言在.,刘翊涵.,...&伍佐.(2020).基于风蚀模型的张家口市风力侵蚀时空分布特征.草业科学,37(7),1405-1415.
MLA 王晓艺,et al."基于风蚀模型的张家口市风力侵蚀时空分布特征".草业科学 37.7(2020):1405-1415.
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