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- Title
Splash erosion of black soil with different reclamation years its relations to soil aggregates selective characteristics.
- Authors
Zhou, Y. Y.; Wang, E. H.; Chena, X. W.
- Abstract
Taking the typical black soil with a reclamation history of 8, 30, and 50 years and the un-reclaimed secondary forest land as test objects, a simulation study was made on the process of splash erosion and the selective characteristics of soil aggregates under artificial rainfall condition, with the effects of reclamation on the splash erosion in black soil region analyzed. The splash amount of reclaimed black soil was evidently higher than that of un-reclaimed secondary forest land, and increased with increasing reclamation years, with a variation range of 0.95-7.06 g · cm1. There was a significant exponential correlation between splash amount and splash distance, and the percentages of small size water-stable aggregates increased with increasing splash distance. The critical particle size of soil aggregates for the enrichment and depletion of splash erosion was 1.0 mm. Soil water-stable aggregates larger than 2 mm and smaller than 0.25 mm in size and soil organic matter content were the main factors affecting the splash erosion characteristics of typical black soil.
- Subjects
BLACK cotton soil; RECLAMATION of land; SOIL erosion; SOIL structure; HUMUS; RAINFALL; FORESTS &; forestry; SIMULATION methods &; models; APPLIED ecology
- Publication
Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao, 2009, Vol 20, Issue 10, p2411
- ISSN
1001-9332
- Publication type
Article