[1]BAI Bateer,ZHENG Hexiang,REN Jie,et al.Soil Temperature Changes in Winter Wheat Fileds Under Different Mulch Conditions During Freezing and Thawing Periods in Cold and Dry Irrigation District[J].Research of Soil and Water Conservation,2015,22(06):134-137.
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Soil Temperature Changes in Winter Wheat Fileds Under Different Mulch Conditions During Freezing and Thawing Periods in Cold and Dry Irrigation District
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 06
Page number:
134-137
Column:
Public date:
2015-12-28
- Title:
- Soil Temperature Changes in Winter Wheat Fileds Under Different Mulch Conditions During Freezing and Thawing Periods in Cold and Dry Irrigation District
- Keywords:
- soil temperature; mulching; winter wheat; freezing and thawing; cold and dry irrigation district
- CLC:
- S512.1+1;S152.8
- DOI:
- -
- Abstract:
- In order to reveal variation of soil temperature of the field during freezing and thawing periods, based on soil temperature data monitored in winter wheat fields with mulch plastic film, straw mulch and no cover mulch in three testing sites in the Hetao Irrigation District, the effects of different mulching types on soil temperature and soil temperature change process in different soil layers were discussed. The results showed that plastic film mulch could enhance soil temperature but straw mulch had less effectiveness on rise of soil temperature in freezing and thawing periods; the effect of soil temperature enhancement was significant in surface soil and it became less and less with the increase of soil depth under plastic film mulch and straw mulch; the effect of soil temperature enhancement was significant in freezing period and it was not effective in thawing period under plastic film mulch and straw mulch, but the effect of soil temperature enhancement was very slight in stable freezing period; the change process of soil temperature presented the different characteristics during freezing and thawing periods, soil temperature rose with the increase of soil depth in freezing period, it decreased with increase of the soil depth in thawing period and the melting process was faster than the freezing process. The result was of great significance for the planting management of winter wheat and to establish a foundation for the study of the coupled transport of water and heat during freezing and thawing periods in cold and dry irrigation district.
- References:
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1900-01-01