土层深度(cm) | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 220 | 240 | 260 | 280 | 300 |
保水剂 | 13.82a | 14.33a | 13.91a | 13.57a | 12.89b | 12.32b | 12.21ab | 10.5c | 10.04bc | 8.78c | 7.81c | 6.89c | 6.61c | 6.42c | 6.37c |
树枝覆盖 | 13.68a | 13.81b | 13.22bc | 13.12b | 12.53c | 12.25ab | 12.45a | 11.52b | 10.83ab | 10.38b | 9.31b | 7.89b | 6.67c | 6.45c | 6.39c |
聚水沟 | 13.21b | 13.73b | 13.47b | 13.45a | 13.23a | 12.95a | 12.62a | 12.12a | 11.53a | 11.35a | 11.23a | 10.84a | 10.34b | 9.87b | 9.82b |
对照 | 12.12c | 12.29d | 12.18d | 11.87c | 11.78d | 11.67c | 11.15b | 10.24c | 9.72c | 8.86c | 7.79c | 6.89c | 6.63c | 6.41c | 6.38c |
坡地农田 | 13.12b | 13.15c | 13.12c | 13.11b | 12.82b | 12.81a | 12.5a | 11.68b | 11.32a | 11.31a | 11.25a | 10.99a | 10.97a | 11.01a | 11.04a |