Acta Prataculturae Sinica ›› 2021, Vol. 30 ›› Issue (4): 58-67.DOI: 10.11686/cyxb2020172
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Ru ZHANG1(), Jian-ping LI1, Wen-dong PENG2, Fang WANG3, Zhi-gang LI1()
Received:
2020-04-13
Revised:
2020-07-08
Online:
2021-04-20
Published:
2021-03-16
Contact:
Zhi-gang LI
Ru ZHANG, Jian-ping LI, Wen-dong PENG, Fang WANG, Zhi-gang LI. Effects of mulching with caragana (Caragana intermedia) branches on soil moisture content and temperature and reseeded forage biomass in desertified grassland in Ningxia Province, China[J]. Acta Prataculturae Sinica, 2021, 30(4): 58-67.
年份 Year | 处理 Treatment | 0~20 cm | 20~40 cm | ||
---|---|---|---|---|---|
水分平均含量 Average moisture content | 变异系数 CV | 水分平均含量 Average moisture content | 变异系数 CV | ||
2018 | TSM0 | 10.19±0.44a | 7.4 | 13.21±0.69c | 9.0 |
TSM1 | 10.53±0.35a | 5.7 | 13.56±0.22bc | 2.8 | |
TSM2 | 11.43±0.94a | 14.3 | 14.88±1.14ab | 13.3 | |
TSM3 | 11.17±1.53a | 23.7 | 15.27±1.72a | 19.5 | |
2019 | TSM0 | 8.52±0.25a | 4.9 | 12.94±0.61b | 8.2 |
TSM1 | 9.40±0.37a | 6.9 | 13.32±0.12b | 1.7 | |
TSM2 | 9.06±1.24a | 23.6 | 13.70±1.01b | 12.8 | |
TSM3 | 9.67±1.29a | 23.1 | 14.56±1.25a | 14.9 |
Table1 Mean soil water and it’s coefficient of variation under different mulching thickness with caragana twigs (%)
年份 Year | 处理 Treatment | 0~20 cm | 20~40 cm | ||
---|---|---|---|---|---|
水分平均含量 Average moisture content | 变异系数 CV | 水分平均含量 Average moisture content | 变异系数 CV | ||
2018 | TSM0 | 10.19±0.44a | 7.4 | 13.21±0.69c | 9.0 |
TSM1 | 10.53±0.35a | 5.7 | 13.56±0.22bc | 2.8 | |
TSM2 | 11.43±0.94a | 14.3 | 14.88±1.14ab | 13.3 | |
TSM3 | 11.17±1.53a | 23.7 | 15.27±1.72a | 19.5 | |
2019 | TSM0 | 8.52±0.25a | 4.9 | 12.94±0.61b | 8.2 |
TSM1 | 9.40±0.37a | 6.9 | 13.32±0.12b | 1.7 | |
TSM2 | 9.06±1.24a | 23.6 | 13.70±1.01b | 12.8 | |
TSM3 | 9.67±1.29a | 23.1 | 14.56±1.25a | 14.9 |
年份 Year | 处理 Treatment | 土壤温度 Soil temperature (℃) | 平均温度 Average temperature (℃) | 变异系数 CV (%) | ||
---|---|---|---|---|---|---|
8:00 | 14:00 | 18:00 | ||||
2018 | TSM0 | 20.13a | 19.93a | 18.40a | 19.49±0.55a | 4.90 |
TSM1 | 17.96a | 17.36a | 18.14a | 17.82±0.34b | 3.31 | |
TSM2 | 16.65a | 16.64a | 17.77a | 16.96±0.31b | 3.18 | |
TSM3 | 16.93a | 16.46a | 17.68a | 17.08±0.31b | 3.20 | |
2019 | TSM0 | 28.63a | 28.26a | 28.56a | 28.48±0.55a | 3.35 |
TSM1 | 26.68ab | 25.36ab | 27.93ab | 26.66±0.74b | 4.80 | |
TSM2 | 25.15ab | 24.75b | 25.88ab | 25.26±0.33c | 2.30 | |
TSM3 | 24.05b | 24.73b | 23.95b | 24.24±0.25c | 1.70 |
Table 2 Mean soil temperature between 0-10 cm and it’s coefficient of variation under different mulching thicknesses with caragana twigs
年份 Year | 处理 Treatment | 土壤温度 Soil temperature (℃) | 平均温度 Average temperature (℃) | 变异系数 CV (%) | ||
---|---|---|---|---|---|---|
8:00 | 14:00 | 18:00 | ||||
2018 | TSM0 | 20.13a | 19.93a | 18.40a | 19.49±0.55a | 4.90 |
TSM1 | 17.96a | 17.36a | 18.14a | 17.82±0.34b | 3.31 | |
TSM2 | 16.65a | 16.64a | 17.77a | 16.96±0.31b | 3.18 | |
TSM3 | 16.93a | 16.46a | 17.68a | 17.08±0.31b | 3.20 | |
2019 | TSM0 | 28.63a | 28.26a | 28.56a | 28.48±0.55a | 3.35 |
TSM1 | 26.68ab | 25.36ab | 27.93ab | 26.66±0.74b | 4.80 | |
TSM2 | 25.15ab | 24.75b | 25.88ab | 25.26±0.33c | 2.30 | |
TSM3 | 24.05b | 24.73b | 23.95b | 24.24±0.25c | 1.70 |
土壤深度 Soil depth (cm) | 补播牧草Reseeded forages | 总生物量 Total biomass | ||
---|---|---|---|---|
蒙古冰草 A. mongolicum | 牛枝子 L. potanimii | 沙打旺 A. adsurgens | ||
0~20 | 0.849 | 0.525 | 0.822 | 0.890 |
20~40 | 0.979* | -0.012 | 0.917* | 0.977* |
Table 3 Correlations between soil water in different soil layers and biomass of reseeded forages
土壤深度 Soil depth (cm) | 补播牧草Reseeded forages | 总生物量 Total biomass | ||
---|---|---|---|---|
蒙古冰草 A. mongolicum | 牛枝子 L. potanimii | 沙打旺 A. adsurgens | ||
0~20 | 0.849 | 0.525 | 0.822 | 0.890 |
20~40 | 0.979* | -0.012 | 0.917* | 0.977* |
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