[1]ZHENG Taihui,TANG Chongjun,XU Mingze,et al.Response of Surface Soil Water Contents to Rainfall on Red Soil Sloping Farmland Under Different Soil Conservation Measures[J].Research of Soil and Water Conservation,2020,27(05):113-119.
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Response of Surface Soil Water Contents to Rainfall on Red Soil Sloping Farmland Under Different Soil Conservation Measures
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 05
Page number:
113-119
Column:
目次
Public date:
2020-08-20
- Title:
- Response of Surface Soil Water Contents to Rainfall on Red Soil Sloping Farmland Under Different Soil Conservation Measures
- Keywords:
- pedology; soil moisture; artificial rainfall; red soil slope farmland; peanut
- CLC:
- S152.7
- DOI:
- -
- Abstract:
- In order to investigate the response of soil moisture content to conservation measures on red soil sloping farmland at different growth stages of peanut under individual rainfall, simulated rainfall experiments were conducted to study the continuous variation of soil moisture content on red soil slope farmland under conventional tillage, organic fertilizer + conventional tillage, mulching + deep tillage, water-retaining agent + conventional tillage during 1.5 h rainfall process and within one hour after the end of rainfall. The results showed that the increase rates of water content in 0—20 cm soil layer on the upper and lower slopes of red soil sloping farmland at different growth stages of peanut decreased in the order: harvested stage ≈ podding stage>florescence stage>emergence stage>tillage stage(p< 0.01); the improving effect of straw mulching plus deep tillage on the soil water storage capacity of red soil sloping farmland was the most significant, especially in peanut tillage and harvest period, soil water storage was 26% and 64% higher than those of conventional tillage measures, respectively; the water conservation effect of water-retaining agent on the red soil sloping land was significant in peanut tillage period, but it was not obvious in other growth periods of peanut; the water conservation effect of organic fertilizer on the red soil sloping land was significant in peanut tillage period, pod period and harvest period. These results indicate that straw mulching plus deep ploughing is an effective model for sustainable and efficient utilization of soil moisture in sloping cultivated land in red soil hilly area.
- References:
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Last Update:
2020-08-25