|Table of Contents|

Effects of Soil Compaction Depth on Water in Filtration and Distribution in Different Farmland

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年19
Page:
107-113
Research Field:
Publishing date:

Info

Title:
Effects of Soil Compaction Depth on Water in Filtration and Distribution in Different Farmland
Author(s):
Effects of Soil Compaction Depth on Water in Filtration and Distribution in Different Farmland
(School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering/Hebei Engineering Technology Research Center for Effective Utilization of Water Resource,Handan,Hebei 056038)
Keywords:
infiltration rate; cumulative infiltration; soil moisture content
PACS:
-
DOI:
10.11937/bfyy.20210988
Abstract:
Two kinds of soil, including surface soil (SCK) and compacted soil (NCK),were used as research object.Three different compaction layers were set up with different depth of 5 cm (T1), 10 cm (T2) and 15 cm (T3).The process and profile distribution of water infiltration and the influence of soil compaction depth on water infiltration were studied,in order to provide a reference for soil tillage and water-saving irrigation.The results showed that the infiltration process，the initial infiltration rate was higher，the power function type was shown after falling until the steady infiltration rate and infiltration depth，SCK treatment of infiltration rate was significantly greater than the NCK，other processing as the compaction layer depth，the greater the infiltration rate，but reach the steady infiltration rate，along with the deepening of compaction depth gradually reduced；cumulative infiltration，first after rapid growth，slow and steady growth of the same depth of infiltration，SCK treatment the cumulative infiltration amount was greater than the NCK，early infiltration，the infiltration depth，cumulative infiltration amount increased along with the deepening of compacted layer depth，such as water infiltration to 5 cm，T1，T2 and T3 cumulative infiltration amount were 13.7 cm，13.8 cm，and 14.1 cm，in the late infiltration，infiltration depth，same cumulative infiltration amount along with the deepening of compaction depth reduction，such as when water infiltration to 15 cm to 20 cm，the cumulative infiltration volume of the above treatments were 4.7 cm，4.3 cm and 4.1 cm，respectively.After infiltration，the soil water content decreased with the depth of soil layer.Compared with the topsoil control (SCK)，the existence of compaction layer significantly increased the soil water content in the upper layer，and with the increase of compaction depth，the storage of water in the upper layer was promoted.The above research results provided a theoretical basis for soil conservation and water-saving irrigation under the condition of soil mechanical compaction.

References:

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Last Update: 2022-01-04