[1]MEI Jiaming,LIU Yang,YUE Pengyun,et al.Effects of Landscape Pattern Change on Sediment Tranport in the Xunhe River Basin[J].Research of Soil and Water Conservation,2020,27(03):45-50，56.
Copy
Effects of Landscape Pattern Change on Sediment Tranport in the Xunhe River Basin
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 03
Page number:
45-50，56
Column:
目次
Public date:
2020-04-20
- Title:
- Effects of Landscape Pattern Change on Sediment Tranport in the Xunhe River Basin
- CLC:
- P333; S157
- DOI:
- -
- Abstract:
- Landscape pattern change in a watershed is an important factor controlling sediment transportation of a river system. The Xunhe River, a major tributary of the Han River, was chosen as the study site. 12 typical watersheds in the upper, middle and lower reaches of the Xunhe River were selected to simulate and analyze the sediment transportation in each tributary using SWAT model. We interpreted remote sensing images from 1995 and 2015 to obtain land cover and calculate the landscape indices. The relationship between landscape pattern change and sediment transportation was examined. SWAT model performed well in simulating sediment transportation. The coefficients of determination(R2)in calibration and validation periods were both greater than 0.75. The Nash-Sutteliffe indices(Ens)were between 0.74 and 0.85. Forest and agricultural land were the two major land cover types in the Xunhe River watershed. Due to forestation and the conversion of agricultural lands into forests and grasslands, the landscape in 2015 had a significantly higher dominant degree, connection among landscape classes was stronger, distribution of patches was more concentrated than that in 1995. The landscape pattern was evolved to be more simplified, resulting in the significant reduction in river sediment transportation. The DIVISION of the landscape level and the PD5 of the class level for water were the two indices that contributed the most to sediment transportation. In addition, the class level indices performed better in explaining sediment transportation than the landscape level indices. This study can provide the scientific basis for soil erosion control and mitigation in the Xunhe River area.
- References:
-
[1] Buttafuoco G, Conforti M, Aucelli C, et al. Assessing spatial uncertainty in mapping soil erodibility factor using geostatistical stochastic simulation[J]. Environmental Earth Sciences, 2012,66(4):1111-1125.
[2] 王甜,黄志霖,曾立雄.三峡库区退耕还林土壤侵蚀及养分流失控制:以兰陵溪小流域为例[J].水土保持研究,2018,25(5):83-88.
[3] Leh M, Bajwa S, Chaubey I. Impact of land use change on erosion risk:an integrated remote sensing, geographic information system and modeling methodology[J]. Land Degradation & Development, 2013,24(5):409-421.
[4] 康磊,刘世荣,刘宪钊.岷江上游景观格局与土壤侵蚀变化:以杂古脑流域为例[J].水土保持通报,2019,39(1):23-28,3.
[5] 潘竟虎,文岩.基于RUSLE-SMA的黄土丘陵沟壑区土壤侵蚀评价及景观格局分析:以庆城县蔡家庙流域为例[J].生态学杂志,2013,32(2):436-444.
[6] 王计平,杨磊,卫伟,等.黄土丘陵区景观格局对水土流失过程的影响:景观水平与多尺度比较[J].生态学报,2011,31(19):5531-5541.
[7] 刘宇.景观指数耦合景观格局与土壤侵蚀的有效性[J].生态学报,2017,37(15):4923-4935.
[8] 廖凯涛,胡建民,宋月君,等.南方红壤丘陵区流域植被景观格局变化及水沙响应关系[J].水土保持学报,2019,33(3):36-42,50.
[9] 李晶,周自翔.延河流域景观格局与生态水文过程分析[J].地理学报,2014,69(7):933-944.
[10] 秦伟,曹文洪,郭乾坤.植被格局对侵蚀产沙影响的研究评述[J].生态学报,2017,37(14):4905-4912.
[11] Mukundan R, Pierson D C, Schneiderman E M, et al. Using detailed monitoring data to simulate spatial sediment loading in a watershed[J]. Environmental Monitoring and Assessment, 2015,187(8):1-10.
[12] 马芊红,张科利.西南喀斯特地区土壤侵蚀研究进展与展望[J].地球科学进展,2018,33(11):1130-1141.
[13] Ferreira V, Panagopoulos T, Andrade R, et al. Spatial variability of soil properties and soil erodibility in the Alqueva reservoir watershed[J]. Solid Earth, 2015,6(2):383-392.
[14] 刘宇,吴炳方,曾源,等.耦合过程和景观格局的土壤侵蚀水环境影响评价[J].应用生态学报,2013,24(9):2581-2589.
[15] 黄婷,于德永,乔建民,等.内蒙古锡林郭勒盟景观格局变化对土壤保持能力的影响[J].资源科学,2018,40(6):1256-1266.
[16] 郭思琪,韩磊,赵永华,等.秦岭地区土壤侵蚀时空变化及景观格局[J].生态学杂志,2019,38(7):2167-2176.
[17] 赵亮,刘宇.耦合景观破碎化和土壤侵蚀的“源”“汇”边界指数[J].地理与地理信息科学,2018,34(1):98-104.
[18] 王金花,李占斌,张荣刚,等.水蚀风蚀交错区流域景观格局变化及水沙响应关系[J].中国水土保持科学,2016,14(3):68-75.
[19] Ouyang W, Hao F, Skidmore K, et al. Soil erosion and sediment yield and their relationships with vegetation cover in upper stream of the yellow river[J]. Science of the Total Environment, 2010,409(2):396-403.
[20] Xu Y, Tang H, Wang B, et al. Effects of landscape patterns on soil erosion processes in a mountain-basin system in the north china[J]. Natural Hazards, 2017,87(3):1567-1585.
[21] 姚雄,余坤勇,刘健,等.南方水土流失严重区的生态脆弱性时空演变[J].应用生态学报,2016,27(3):735-745.
[22] 闫玮明,孙冰,裴男才,等.粤北阔叶人工林和次生林植物多样性与土壤理化性质相关性研究[J].生态环境学报,2019,28(5):898-907.
- Similar References:
Memo
-
Last Update:
2020-04-30