[1]ZHOU Xiaoying,JIA Lizhi,SANG Weiguo.Determination of Tillage Factor in the CSLE Model Based on Literature Statistics[J].Research of Soil and Water Conservation,2020,27(06):116-121,130.
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Determination of Tillage Factor in the CSLE Model Based on Literature Statistics
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 06
Page number:
116-121,130
Column:
目次
Public date:
2020-10-20
- Title:
- Determination of Tillage Factor in the CSLE Model Based on Literature Statistics
- Keywords:
- CSLE model; tillage factor; literature statistics; China
- CLC:
- S157
- DOI:
- -
- Abstract:
- In order to study the method of determining the T factor in the CSLE model, the results of different conservation farming measures in various soil and water conservation areas were collected and selected in China, the T-factor values of 6 conservation tillage measures in 6 soil and water conservation areas in China were calculated and obtained by using the literature statistics method. The results showed that:(1)under the 3 conservation tillage measures of no tillage with mulch, contour tillage, and micro-basins tillage in the black soil region of Northeast China, the T factors are 0.20±0.14, 0.52±0.25, 0.15±0.12, respectively;(2)under the 3 conservation tillage measures of no tillage, micro-basins tillage and contour tillage with hedgerow in the mountainous region of North China, the T factors are 0.51±0.25, 0.46±0.24, 0.17±0.09, respectively;(3)under the 3 conservation tillage measures of no tillage, no tillage with mulch and contour tillage in the Loess Plateau region of Northwest China, the T factors are 0.73±0.17, 0.69±0.22, 0.27±0.22, respectively;(4)under the 2 conservation tillage measures of no tillage with mulch and contour tillage in the red soil region of South China, the T factors are 0.11±0.08 and 0.54±0.32, respectively;(5)under the 4 conservation tillage measures of no tillage with mulch, contour tillage, contour tillage with hedgerow, and collecting soil to form ridge with no tillage in the purple soil region of Southwest China, the T factors are 0.44±0.29, 0.48±0.27, 0.47±0.24, 0.32±0.15, respectively;(6)under the 2 conservation tillage measures of no tillage and contour tillage in the Southwest China karst region, the T factors are 0.49±0.33 and 0.38±033, respectively. It can be seen that different farming methods have different T factors in the same soil and water conservation area, and the same soil and water conservation tillage measures have different values in different soil and water conservation areas. This study can provide the scientific basis for the values of T factor of different conservation tillage measures in different soil and water conservation areas in the application of CSLE model.
- References:
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Last Update:
2020-10-20