[1]XU Shuang,LI Fei-xue,LIU Ai-li,et al.Research on Spatial Variability of Elevation in Typical Loess Landform[J].Research of Soil and Water Conservation,2014,21(05):1-6.
Copy
Research on Spatial Variability of Elevation in Typical Loess Landform
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 05
Page number:
1-6
Column:
Public date:
2014-10-28
- Title:
- Research on Spatial Variability of Elevation in Typical Loess Landform
- Keywords:
- Loess Plateau; spatial variability; variogram; elevation
- CLC:
- P931.6
- DOI:
- -
- Abstract:
- The topography in the Loess Plateau changes orderly from south to north and this constructs the unique landscape of the Loess Plateau. Aiming to explore the spatial variations of the elevation among various loess landforms, we selected seven typical loess landforms as cases and applied variogram model to the loess landform analysis. DEM datasets with 30 meters resolution were used, and 5 quantified indices were calculated and analyzed to study the spatial distribution characteristics and individual features of the loess landform. Furthermore, we found that the best window size is 4 000 m for highlighting the spatial variation characteristics of the elevation based on the scale effects. We addressed that the elevation distributions in different sample areas were as follows: (1) the more complicated and fragmented the landform is, the lower the range of the autocorrelation tends to be; (2) the spatial change range tends to decline coupled with the evolution of landform; (3) the elevation in the research areas has strong autocorrelation with an anisotropic change; (4) five characteristic parameters of the variogram model change in the order big—small—large or small—big—small within the loess landforms from Chunhua to Shenmu, which is identical to the change of the loess landform from south to north.
- References:
-
[1] 罗来兴.划分晋西、陕北、陇东黄土区域沟间地与沟谷的地貌类型[J].地理学报,1956,22(3):201-222.
[2] 罗枢运,孙逊,陈永宗.黄土高原自然条件研究[M].西安:陕西人民出版社,1988.
[3] 刘源鑫,焦峰.黄土高原丘陵区景观特征与景观指数粒度效应研究[J].水土保持研究,2013,20(3):23-27.
[4] 赵牡丹,汤国安,陈正江,等.黄土丘陵沟壑区不同坡度分级系统及地面坡谱对比[J].水土保持通报,2002,22(4):33-36.
[5] 吴良超.基于DEM的黄土高原沟壑特征及其空间分异规律研究[D].西安:西北大学,2005.
[6] 张丽萍,马志正.流域地貌演化的不同阶段沟壑密度与切割深度关系研究[J].地理研究,1998,17(3):273-278.
[7] 张婷.基于DEM的陕北黄土高原多地形因子空间关联特征研究[D].西安:西北大学,2005.
[8] 郭怀成,周丰,刀谞.地统计方法学研究进展[J].地理研究,2008,27(5):1191-1202.
[9] 王政权.地统计学及其在生态学中的应用[M].北京:科学出版社,1999.
[10] Herzfeld U C. A method for seafloor classification using directional variograms, demonstrated for data from the western flank of the Mid-Atlantic Ridge[J]. Mathematical Geology,1993,25(7):901-924.
[11] Herzfeld U C, Higginson C A. Automated geostatistical seafloor classification-principles, parameters, feature vectors, and discrimination criteria[J]. Computers and Geosciences,1996,22(1):35-52.
[12] Herzfeld U C, Master of the obscure-automated geostatistical classification in presence of complex geophysical processes[J]. Math Geosci., 2008,40(5):587-618.
[13] 赵龙山,宋向阳,张青峰,等.黄土坡耕地地表微地形空间变异性研究[J].干旱地区农业研究,2011,29(1):146-150.
[14] Brown D G, Plusch D, Duda K A. Supervised classification of types of glaciated landscapes using digital elevation data[J]. Geomorpholohy,1998,21(3):233-250.
[15] 易红伟.基于DEM的黄土高原沟壑信息挖掘研究[D].西安:西北大学,2004.
[16] 周啸.基于地统计学变异函数理论的海底地形分类研究[D].山东青岛:国家海洋局第一海洋研究所,2011.
[17] 龙毅,周侗,汤国安,等.典型黄土地貌类型区的地形复杂度分形研究[J].山地学报,2007,25(04):385-392.
[18] 赵景波,朱显谟.黄土高原的形成与发展[J].中国沙漠,1999,19(4):333-337.
[19] 万丽.基于变异函数的空间异质性定量分析[J].统计与决策,2006,208(4):26-27.
[20] 张瑞,曹华,王云强,等.黄土丘陵沟壑区小流域土壤水分空间变异性及其影响因素[J].水土保持研究,2012,19(5):52-58.
[21] 张慧,付强,赵映慧.松嫩平原北部土壤重金属空间分异特征及生态安全评价[J].水土保持研究,2013,20(2):165-169.
[22] 李立,魏晓妹,韩业珍.基于地统计学的作物需水量空间变异性分析[J].水土保持研究,2010,17(1):241-242.
- Similar References:
Memo
-
Last Update:
1900-01-01