Acta Prataculturae Sinica ›› 2022, Vol. 31 ›› Issue (1): 26-35.DOI: 10.11686/cyxb2020517
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Xing WANG1(), Shuang YU1, Dong-mei XU1,2(), Ke-chen SONG1
Received:
2020-11-24
Revised:
2021-01-12
Online:
2021-12-01
Published:
2021-12-01
Contact:
Dong-mei XU
Xing WANG, Shuang YU, Dong-mei XU, Ke-chen SONG. Effects of different restorative measures on soil carbon and nitrogen and their component fractions in a degraded desert steppe[J]. Acta Prataculturae Sinica, 2022, 31(1): 26-35.
处理 Treatments | 土壤水稳性大团聚体含量 Content of soil wet aggregates (%) | 土壤容重 Soil bulk density (g·cm-3) | 土壤含水量 Soil moisture content (%) | 植被盖度 Vegetation coverage (%) | 地上生物量 Aboveground biomass (g·m-2) | Shannon-Wiener指数Shannon-Wiener index |
---|---|---|---|---|---|---|
CK | 16.37±0.04 | 1.13±0.02 | 3.65±0.07 | 42.00 | 55.50 | 1.43 |
SR | 10.19±0.02 | 1.48±0.03 | 7.59±0.06 | 53.70 | 98.50 | 2.54 |
QR | 22.41±0.02 | 1.41±0.02 | 7.89±0.04 | 69.00 | 82.40 | 2.61 |
F | 11.21±0.04 | 1.47±0.02 | 2.97±0.03 | 59.30 | 87.20 | 1.56 |
Table 1 Basic situation of desert steppes under different restoration measurements
处理 Treatments | 土壤水稳性大团聚体含量 Content of soil wet aggregates (%) | 土壤容重 Soil bulk density (g·cm-3) | 土壤含水量 Soil moisture content (%) | 植被盖度 Vegetation coverage (%) | 地上生物量 Aboveground biomass (g·m-2) | Shannon-Wiener指数Shannon-Wiener index |
---|---|---|---|---|---|---|
CK | 16.37±0.04 | 1.13±0.02 | 3.65±0.07 | 42.00 | 55.50 | 1.43 |
SR | 10.19±0.02 | 1.48±0.03 | 7.59±0.06 | 53.70 | 98.50 | 2.54 |
QR | 22.41±0.02 | 1.41±0.02 | 7.89±0.04 | 69.00 | 82.40 | 2.61 |
F | 11.21±0.04 | 1.47±0.02 | 2.97±0.03 | 59.30 | 87.20 | 1.56 |
项目Items | 土层深度Soil depth (cm) | CK | SR | QR | F |
---|---|---|---|---|---|
有机碳含量Content of soil organic carbon (SOC) | 0~10 | 3.22±0.20b | 3.74±0.25b | 5.50±0.82a | 3.27±0.11b |
10~20 | 3.65±0.06b | 3.61±0.21b | 6.17±1.68a | 3.62±0.59b | |
20~30 | 8.45±0.65b | 5.75±0.97c | 9.93±2.73a | 3.75±0.55d | |
30~40 | 11.72±0.52a | 7.99±0.99a | 9.63±1.35a | 7.40±2.79a | |
全氮含量Content of total nitrogen (TN) | 0~10 | 0.09±0.00c | 0.14±0.02ab | 0.18±0.00a | 0.11±0.01bc |
10~20 | 0.10±0.01b | 0.11±0.00b | 0.23±0.02a | 0.10±0.00b | |
20~30 | 0.21±0.03a | 0.22±0.04a | 0.19±0.02ab | 0.11±0.01b | |
30~40 | 0.16±0.01b | 0.22±0.03a | 0.17±0.02b | 0.17±0.01b |
Table 2 Contents of soil organic carbon and total nitrogen of desert steppes under different restoration measurements (g·kg-1)
项目Items | 土层深度Soil depth (cm) | CK | SR | QR | F |
---|---|---|---|---|---|
有机碳含量Content of soil organic carbon (SOC) | 0~10 | 3.22±0.20b | 3.74±0.25b | 5.50±0.82a | 3.27±0.11b |
10~20 | 3.65±0.06b | 3.61±0.21b | 6.17±1.68a | 3.62±0.59b | |
20~30 | 8.45±0.65b | 5.75±0.97c | 9.93±2.73a | 3.75±0.55d | |
30~40 | 11.72±0.52a | 7.99±0.99a | 9.63±1.35a | 7.40±2.79a | |
全氮含量Content of total nitrogen (TN) | 0~10 | 0.09±0.00c | 0.14±0.02ab | 0.18±0.00a | 0.11±0.01bc |
10~20 | 0.10±0.01b | 0.11±0.00b | 0.23±0.02a | 0.10±0.00b | |
20~30 | 0.21±0.03a | 0.22±0.04a | 0.19±0.02ab | 0.11±0.01b | |
30~40 | 0.16±0.01b | 0.22±0.03a | 0.17±0.02b | 0.17±0.01b |
处理 Treatments | 颗粒有机碳比例POC/SOC | 易氧化有机碳比例ROC/SOC | 微生物量碳比例MBC/SOC | 铵态氮比例 NH4+-N/TN | 硝态氮比例 NO3--N/TN | 微生物量氮比例MBN/TN |
---|---|---|---|---|---|---|
CK | 29.54±3.51b | 8.96±0.41b | 0.75±0.12b | 11.23±1.50a | 3.65±0.59a | 43.60±5.67ab |
SR | 18.34±2.38c | 12.85±0.73a | 0.74±0.06b | 6.59±0.92b | 1.49±0.27b | 35.65±3.90b |
QR | 12.54±1.53d | 9.44±0.77b | 0.51±0.07b | 5.50±0.48b | 1.48±0.24b | 36.75±2.20b |
F | 38.65±4.52a | 14.64±1.55a | 1.14±0.13a | 7.14±0.48b | 1.34±0.20b | 48.08±3.28a |
Table 3 Proportion of soil carbon and nitrogen components in total organic carbon and total nitrogen of desert steppes under different restoration measurements (%)
处理 Treatments | 颗粒有机碳比例POC/SOC | 易氧化有机碳比例ROC/SOC | 微生物量碳比例MBC/SOC | 铵态氮比例 NH4+-N/TN | 硝态氮比例 NO3--N/TN | 微生物量氮比例MBN/TN |
---|---|---|---|---|---|---|
CK | 29.54±3.51b | 8.96±0.41b | 0.75±0.12b | 11.23±1.50a | 3.65±0.59a | 43.60±5.67ab |
SR | 18.34±2.38c | 12.85±0.73a | 0.74±0.06b | 6.59±0.92b | 1.49±0.27b | 35.65±3.90b |
QR | 12.54±1.53d | 9.44±0.77b | 0.51±0.07b | 5.50±0.48b | 1.48±0.24b | 36.75±2.20b |
F | 38.65±4.52a | 14.64±1.55a | 1.14±0.13a | 7.14±0.48b | 1.34±0.20b | 48.08±3.28a |
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