SUSCEPTIBILITY OF AGRICULTURAL SOILS TO INTERRILL EROSION
SUSCEPTIBILITY OF AGRICULTURAL SOILS TO INTERRILL EROSION
复制标题
DOI：
10.2136/sssaj1984.03615995004800050040x
复制
发表时间：
1984-01-01
影响因子：
2.9
通讯作者：
HARMON, WC
中科院分区：
文献类型：
--
作者：
MEYER, LD;HARMON, WC
在裸露和耕作条件下，对18种土壤的作物行边坡土壤流失进行了评估，以确定它们对细沟间侵蚀的相对敏感性。腐蚀性在初始批次和后续批次中的比例分别为10：1和4：1。低团聚度高粉质土壤的可蚀性最强，高粘性土壤的可蚀性最小。确定了细沟间侵蚀与不同土壤性质的简单相关性。土壤侵蚀量与土壤粘粒百分含量、1500千帕水分、交换性钙、交换性盐基总量、阳离子交换量和有机质含量呈负相关。细沟间侵蚀量与土壤流失通用方程中的立地比K因子呈显著正相关。
Soil losses from crop row sideslopes were evaluated for 18 soils in a bare, tilled condition to determine their relative susceptibilities to interrill erosion. Erodibilities varied by a ratio of > 10:1 for the initial run and by 4:1 for succeeding runs. The poorly aggregated high-silt soils were most erodible, and the high-clay soils were least erodible. Simple correlations of interrill erosion with various soil properties were determined. Erosion was best correlated with clay (< 2 .mu.m) percentage, 1500 kPa [kilopascal] water, exchangeable Ca, sum of exchangeable bases, cation exchange capacity and organic matter content, all negatively. Interrill erosion was well correlated (positively) with the site specific K-factor of the universal soil loss equation.