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分析了陕北黄土高原区土壤类型,选取分维数、破碎度和优势度等景观指数作为土壤类型格局指标,并利用Fragstats分析了各土壤类型格局指数。将陕北黄土高原区水土流敏感性分布图与土壤类型图,在ArcGIS下经过数据的提取、分析、计算出了各土壤类型的水土流失敏感性值。分析了水土流失敏感性与土壤类型格局的相互关系,结果表明,水土流失敏感值随土壤类型分维数和破碎度的增加而随之升高,却随土壤类型优势度增加而降低。
The soil types, the fractal dimension, the degree of fragmentation and the dominant degree of landscape index were selected as the index of soil type in the loess plateau of northern Shaanxi Province. The soil type index was analyzed by Fragstats. Based on the data of soil erosion and its distribution in the Loess Plateau of northern Shaanxi Province, the sensitivity of soil and water loss was calculated by ArcGIS. The correlation between soil erosion sensitivity and soil type and pattern was analyzed. The results showed that the sensitivity value of soil and water loss increased with the increase of fractal dimension and degree of soil type, but decreased with the increase of soil type dominance.