|
Hydrograph and Sedimentgraph Changes of Small Experimental Plots by Application of Biochar Treatment in Different Soil Moistures
|
Nabiyeh Karimi   , Leila Gholami * , Ataollah Kavian |
|
|
|
Abstract: (5491 Views) |
Due to the time variation of sediment concentration and runoff volume during storms, and on the other hand, the lack of control and study of storms in field conditions for studying hydrographs and sedimentgraphs changes in different soil moistures, the study of these variables has special importance in laboratory conditions. Also, the studies showed that the use of soil conditioners in laboratory conditions in order to determination of their effect less has been attend for preparing hydrograph and sedimentgraph. Therefore, the present study was conducted to investigating the effect of biochar derived from sewage sludge with rates of 0.4, 0.8 and 1.6 t ha-1 proportional with cover level of 25, 50 and 75 percent on hydrograph and sedimentgraph in different soil moistures including air-dried, 15, 20 and 30 percent, with rainfall intensity of 50 mm h-1 and rainfall duration of 10 min after time to runoff in laboratory conditions. The results showed that the biochar conditioner with various rates toward control treatments had significant effect on hydrograph and sedimentgraph changes. Also, the biochar treatment with rate of 1.6 t ha-1 in different soil moistures has significantly more effective toward on hydrograph and sedimentgraph changes. The results also showed that the correlation coefficient between biochar amounts with time to runoff, runoff coefficient, soil loss and sediment concentration variables was significant in confidence level of 99 percent.
|
|
| Keywords: Erosion Plots, Soil Amendment, Soil Conservation, Soil Loss |
|
|
Full-Text [PDF 1596 kb]
(28 Downloads)
|
Type of Study: Research |
Subject:
Special
Received: 2017/12/23 | Accepted: 2018/06/30 | Published: 2019/11/4
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
