Chin J Plant Ecol ›› 2011, Vol. 35 ›› Issue (12): 1236-1244.DOI: 10.3724/SP.J.1258.2011.01236
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Received:
2011-06-29
Accepted:
2011-10-09
Online:
2011-06-29
Published:
2011-12-15
ZHANG Gui-Ling. Effects of straw and living grass mulching on soil nutrients, soil microbial quantities and soil enzyme activities in a peach orchard[J]. Chin J Plant Ecol, 2011, 35(12): 1236-1244.
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URL: https://www.plant-ecology.com/EN/10.3724/SP.J.1258.2011.01236
处理 Treatment | 含水率 Moisture content (%) | pH | |||
---|---|---|---|---|---|
根际 Rhizosphere | 非根际Non-rhizosphere | 根际 Rhizosphere | 非根际 Non-rhizosphere | ||
白三叶草 Trifolium repens | 30.21 ± 2.49 b | 27.27 ± 2.36 b | 5.90 ± 0.20 b | 5.78 ± 0.27 b | |
紫花苜蓿 Medicago sativa | 28.90 ± 2.38 b | 26.90 ± 2.09 b | 5.92 ± 0.25 b | 5.75 ± 0.19 b | |
高羊茅 Festuca arundincea | 27.65 ± 2.19 b | 25.87 ± 2.18 b | 5.61 ± 0.19 b | 5.65 ± 0.20 b | |
玉米秸 Corn stalks | 37.15 ± 2.45 a | 32.55 ± 2.75 a | 6.31 ± 0.30 a | 6.25 ± 0.24 a | |
小麦秸 Wheat straw | 35.74 ± 2.87 a | 31.39 ± 2.52 a | 6.24 ± 0.25 a | 6.14 ± 0.22 a | |
禾本科杂草 Gramineal weeds | 35.28 ± 3.12 a | 27.89 ± 3.51 a | 6.35 ± 0.23 a | 6.27 ± 0.22 a | |
对照 Control | 15.23 ± 2.91 c | 13.14 ± 2.91 c | 5.60 ± 0.22 c | 5.54 ± 0.31 c |
Table 1 Effects of different mulching materials on moisture content and pH of soil (mean ± SE)
处理 Treatment | 含水率 Moisture content (%) | pH | |||
---|---|---|---|---|---|
根际 Rhizosphere | 非根际Non-rhizosphere | 根际 Rhizosphere | 非根际 Non-rhizosphere | ||
白三叶草 Trifolium repens | 30.21 ± 2.49 b | 27.27 ± 2.36 b | 5.90 ± 0.20 b | 5.78 ± 0.27 b | |
紫花苜蓿 Medicago sativa | 28.90 ± 2.38 b | 26.90 ± 2.09 b | 5.92 ± 0.25 b | 5.75 ± 0.19 b | |
高羊茅 Festuca arundincea | 27.65 ± 2.19 b | 25.87 ± 2.18 b | 5.61 ± 0.19 b | 5.65 ± 0.20 b | |
玉米秸 Corn stalks | 37.15 ± 2.45 a | 32.55 ± 2.75 a | 6.31 ± 0.30 a | 6.25 ± 0.24 a | |
小麦秸 Wheat straw | 35.74 ± 2.87 a | 31.39 ± 2.52 a | 6.24 ± 0.25 a | 6.14 ± 0.22 a | |
禾本科杂草 Gramineal weeds | 35.28 ± 3.12 a | 27.89 ± 3.51 a | 6.35 ± 0.23 a | 6.27 ± 0.22 a | |
对照 Control | 15.23 ± 2.91 c | 13.14 ± 2.91 c | 5.60 ± 0.22 c | 5.54 ± 0.31 c |
处理 Treatment | 碱解氮 Alkali-hydrolyzable nitrogen (mg·kg-1) | 速效磷 Available phosphorus (mg·kg-1) | 速效钾 Available potassium (mg·kg-1) | |||||
---|---|---|---|---|---|---|---|---|
根际 Rhizosphere | 非根际 Non-rhizosphere | 根际 Rhizosphere | 非根际 Non-rhizosphere | 根际 Rhizosphere | 非根际 Non-rhizosphere | |||
白三叶草 Trifolium repens | 152.10 ± 9.05 a | 139.55 ± 9.56 a | 5.48 ± 0.24 c | 4.57 ± 0.22 c | 201.36 ± 11.85 a | 174.02 ± 13.01 a | ||
紫花苜蓿 Medicago sativa | 123.46 ± 8.60 b | 119.25 ± 8.55 b | 5.50 ± 0.31 c | 4.69 ± 0.29 c | 105.22 ± 9.96 b | 86.22 ± 7.54 c | ||
高羊茅 Festuca arundincea | 75.56 ± 6.70 d | 70.20 ± 6.50 d | 5.30 ± 0.36 c | 4.75 ± 0.41 c | 190.05 ± 11.94 a | 144.11 ± 5.39 b | ||
玉米秸 Corn stalks | 96.02 ± 8.55 c | 91.60 ± 8.00 c | 7.29 ± 0.40 b | 6.64 ± 0.37 b | 89.93 ± 5.98 b | 62.29 ± 4.07 d | ||
小麦秸 Wheat straw | 95.77 ± 8.46 c | 91.35 ± 8.54 c | 7.06 ± 0.46 b | 6.65 ± 0.43 b | 88.79 ± 4.94 b | 60.04 ± 5.00 d | ||
禾本科杂草 Gramineal weeds | 95.69 ± 9.90 c | 90.05 ± 9.86 c | 9.22 ± 0.56 a | 8.38 ± 0.54 a | 86.71 ± 4.10 b | 61.27 ± 4.97 d | ||
对照 Control | 74.18 ± 6.90 d | 72.75 ± 6.35 d | 5.07 ± 0.32 c | 4.50 ± 0.47 c | 54.28 ± 5.04 c | 47.22 ± 3.68 e |
Table 2 Effects of different mulching materials on soil available nutrient contents (mean ± SE)
处理 Treatment | 碱解氮 Alkali-hydrolyzable nitrogen (mg·kg-1) | 速效磷 Available phosphorus (mg·kg-1) | 速效钾 Available potassium (mg·kg-1) | |||||
---|---|---|---|---|---|---|---|---|
根际 Rhizosphere | 非根际 Non-rhizosphere | 根际 Rhizosphere | 非根际 Non-rhizosphere | 根际 Rhizosphere | 非根际 Non-rhizosphere | |||
白三叶草 Trifolium repens | 152.10 ± 9.05 a | 139.55 ± 9.56 a | 5.48 ± 0.24 c | 4.57 ± 0.22 c | 201.36 ± 11.85 a | 174.02 ± 13.01 a | ||
紫花苜蓿 Medicago sativa | 123.46 ± 8.60 b | 119.25 ± 8.55 b | 5.50 ± 0.31 c | 4.69 ± 0.29 c | 105.22 ± 9.96 b | 86.22 ± 7.54 c | ||
高羊茅 Festuca arundincea | 75.56 ± 6.70 d | 70.20 ± 6.50 d | 5.30 ± 0.36 c | 4.75 ± 0.41 c | 190.05 ± 11.94 a | 144.11 ± 5.39 b | ||
玉米秸 Corn stalks | 96.02 ± 8.55 c | 91.60 ± 8.00 c | 7.29 ± 0.40 b | 6.64 ± 0.37 b | 89.93 ± 5.98 b | 62.29 ± 4.07 d | ||
小麦秸 Wheat straw | 95.77 ± 8.46 c | 91.35 ± 8.54 c | 7.06 ± 0.46 b | 6.65 ± 0.43 b | 88.79 ± 4.94 b | 60.04 ± 5.00 d | ||
禾本科杂草 Gramineal weeds | 95.69 ± 9.90 c | 90.05 ± 9.86 c | 9.22 ± 0.56 a | 8.38 ± 0.54 a | 86.71 ± 4.10 b | 61.27 ± 4.97 d | ||
对照 Control | 74.18 ± 6.90 d | 72.75 ± 6.35 d | 5.07 ± 0.32 c | 4.50 ± 0.47 c | 54.28 ± 5.04 c | 47.22 ± 3.68 e |
处理 Treatment | 全N Total N (g·kg-1) | 全P Total P (g·kg-1) | 全K Total K (g·kg-1) | 有机质 Organic matter (g·kg-1) | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
根际 Rhizosphere | 非根际 Non- rhizosphere | 根际 Rhizosphere | 非根际 Non- rhizosphere | 根际 Rhizosphere | 非根际 Non- rhizosphere | 根际 Rhizosphere | 非根际 Non- rhizosphere | ||||
白三叶草 Trifolium repens | 1.87 ± 0.20 a | 1.62 ± 0.16 a | 0.69 ± 0.04 b | 0.58 ± 0.08 b | 12.24 ± 0.85 a | 10.28 ± 0.71 a | 53.45 ± 2.35 a | 50.09 ± 2.52 a | |||
紫花苜蓿 Medicago sativa | 1.86 ± 0.16 a | 1.63 ± 0.15 a | 0.70 ± 0.04 b | 0.59 ± 0.03 b | 11.91 ± 0.96 a | 9.66 ± 0.54 a | 48.78 ± 2.60 b | 45.35 ± 1.53 b | |||
高羊茅 Festuca arundincea | 0.78 ± 0.10 c | 0.59 ± 0.11 c | 0.65 ± 0.03 b | 0.54 ± 0.02 b | 6.93 ± 0.94 c | 4.24 ± 0.39 c | 48.56 ± 1.45 b | 46.31 ± 2.50 b | |||
玉米秸 Corn stalks | 1.22 ± 0.12 b | 1.05 ± 0.16 b | 0.86 ± 0.07 a | 0.73 ± 0.07 a | 9.17 ± 0.98 b | 7.05 ± 0.67 b | 27.02 ± 1.55 c | 24.62 ± 1.81 c | |||
小麦秸 Wheat straw | 1.20 ± 0.13 b | 1.02 ± 0.14 b | 0.87 ± 0.06 a | 0.72 ± 0.03 a | 9.07 ± 0.77 b | 6.92 ± 0.54 b | 25.23 ± 1.78 c | 22.53 ± 1.26 cd | |||
禾本科杂草 Gramineal weeds | 1.17 ± 0.10 b | 0.98 ± 0.16 b | 0.88 ± 0.03 a | 0.74 ± 0.05 a | 9.18 ± 0.62 b | 6.88 ± 0.25 b | 24.90 ± 1.06 c | 20.97 ± 1.72 d | |||
对照 Control | 0.53 ± 0.09 c | 0.42 ± 0.15 c | 0.62 ± 0.04 b | 0.57 ± 0.07 b | 5.99 ± 0.54 c | 4.38 ± 0.68 c | 11.18 ± 1.90 d | 10.77 ± 2.34 e |
Table 3 Effects of different mulching materials on the contents of total nitrogen (N), total phosphorus (P), total potassium (K) and organic matter of soil (mean ± SE)
处理 Treatment | 全N Total N (g·kg-1) | 全P Total P (g·kg-1) | 全K Total K (g·kg-1) | 有机质 Organic matter (g·kg-1) | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
根际 Rhizosphere | 非根际 Non- rhizosphere | 根际 Rhizosphere | 非根际 Non- rhizosphere | 根际 Rhizosphere | 非根际 Non- rhizosphere | 根际 Rhizosphere | 非根际 Non- rhizosphere | ||||
白三叶草 Trifolium repens | 1.87 ± 0.20 a | 1.62 ± 0.16 a | 0.69 ± 0.04 b | 0.58 ± 0.08 b | 12.24 ± 0.85 a | 10.28 ± 0.71 a | 53.45 ± 2.35 a | 50.09 ± 2.52 a | |||
紫花苜蓿 Medicago sativa | 1.86 ± 0.16 a | 1.63 ± 0.15 a | 0.70 ± 0.04 b | 0.59 ± 0.03 b | 11.91 ± 0.96 a | 9.66 ± 0.54 a | 48.78 ± 2.60 b | 45.35 ± 1.53 b | |||
高羊茅 Festuca arundincea | 0.78 ± 0.10 c | 0.59 ± 0.11 c | 0.65 ± 0.03 b | 0.54 ± 0.02 b | 6.93 ± 0.94 c | 4.24 ± 0.39 c | 48.56 ± 1.45 b | 46.31 ± 2.50 b | |||
玉米秸 Corn stalks | 1.22 ± 0.12 b | 1.05 ± 0.16 b | 0.86 ± 0.07 a | 0.73 ± 0.07 a | 9.17 ± 0.98 b | 7.05 ± 0.67 b | 27.02 ± 1.55 c | 24.62 ± 1.81 c | |||
小麦秸 Wheat straw | 1.20 ± 0.13 b | 1.02 ± 0.14 b | 0.87 ± 0.06 a | 0.72 ± 0.03 a | 9.07 ± 0.77 b | 6.92 ± 0.54 b | 25.23 ± 1.78 c | 22.53 ± 1.26 cd | |||
禾本科杂草 Gramineal weeds | 1.17 ± 0.10 b | 0.98 ± 0.16 b | 0.88 ± 0.03 a | 0.74 ± 0.05 a | 9.18 ± 0.62 b | 6.88 ± 0.25 b | 24.90 ± 1.06 c | 20.97 ± 1.72 d | |||
对照 Control | 0.53 ± 0.09 c | 0.42 ± 0.15 c | 0.62 ± 0.04 b | 0.57 ± 0.07 b | 5.99 ± 0.54 c | 4.38 ± 0.68 c | 11.18 ± 1.90 d | 10.77 ± 2.34 e |
处理 Treatment | 氨化细菌 Ammonification bacteria (×105·g-1) | 真菌 Fungi (×104·g-1) | 放线菌 Actinomyces (×103·g-1) | |||||
---|---|---|---|---|---|---|---|---|
根际Rhizosphere | 非根际 Non-rhizosphere | 根际Rhizosphere | 非根际 Non-rhizosphere | 根际Rhizosphere | 非根际 Non-rhizosphere | |||
白三叶草 Trifolium repens | 13.39 ± 1.23 a | 9.63 ± 0.75 a | 6.27 ± 0.32 a | 4.76 ± 0.32 a | 6.89 ± 0.36 b | 5.21 ± 0.20 b | ||
紫花苜蓿 Medicago sativa | 13.78 ± 1.25 a | 10.85 ± 0.81 a | 5.99 ± 0.26 a | 4.70 ± 0.21 a | 7.77 ± 0.50 a | 6.71 ± 0.32 a | ||
高羊茅 Festuca arundincea | 10.28 ± 0.92 b | 8.94 ± 0.62 b | 5.33 ± 0.23 b | 4.28 ± 0.17 b | 3.21 ± 0.34 d | 2.19 ± 0.16 d | ||
玉米秸 Corn stalks | 8.36 ± 0.83 c | 7.14 ± 0.55 c | 3.58 ± 0.20 c | 2.28 ± 0.15 c | 4.85 ± 0.27 c | 3.65 ± 0.14 c | ||
小麦秸 Wheat straw | 8.45 ± 0.85 c | 7.10 ± 0.48 c | 3.49 ± 0.19 c | 2.58 ± 0.10 c | 4.65 ± 0.21 c | 3.54 ± 0.12 c | ||
禾本科杂草 Gramineal weeds | 8.38 ± 0.77 c | 7.08 ± 0.39 c | 3.37 ± 0.15 c | 2.44 ± 0.08 c | 3.20 ± 0.19 d | 2.18 ± 0.08 d | ||
对照 Control | 6.67 ± 0.43 d | 5.25 ± 0.22 d | 2.67 ± 0.12 d | 1.90 ± 0.05 d | 2.49 ± 0.13 e | 1.56 ± 0.05 e |
Table 4 Effects of different mulching materials on quantities of ammonification bacteria, fungi and actinomyces of soil (mean ± SE)
处理 Treatment | 氨化细菌 Ammonification bacteria (×105·g-1) | 真菌 Fungi (×104·g-1) | 放线菌 Actinomyces (×103·g-1) | |||||
---|---|---|---|---|---|---|---|---|
根际Rhizosphere | 非根际 Non-rhizosphere | 根际Rhizosphere | 非根际 Non-rhizosphere | 根际Rhizosphere | 非根际 Non-rhizosphere | |||
白三叶草 Trifolium repens | 13.39 ± 1.23 a | 9.63 ± 0.75 a | 6.27 ± 0.32 a | 4.76 ± 0.32 a | 6.89 ± 0.36 b | 5.21 ± 0.20 b | ||
紫花苜蓿 Medicago sativa | 13.78 ± 1.25 a | 10.85 ± 0.81 a | 5.99 ± 0.26 a | 4.70 ± 0.21 a | 7.77 ± 0.50 a | 6.71 ± 0.32 a | ||
高羊茅 Festuca arundincea | 10.28 ± 0.92 b | 8.94 ± 0.62 b | 5.33 ± 0.23 b | 4.28 ± 0.17 b | 3.21 ± 0.34 d | 2.19 ± 0.16 d | ||
玉米秸 Corn stalks | 8.36 ± 0.83 c | 7.14 ± 0.55 c | 3.58 ± 0.20 c | 2.28 ± 0.15 c | 4.85 ± 0.27 c | 3.65 ± 0.14 c | ||
小麦秸 Wheat straw | 8.45 ± 0.85 c | 7.10 ± 0.48 c | 3.49 ± 0.19 c | 2.58 ± 0.10 c | 4.65 ± 0.21 c | 3.54 ± 0.12 c | ||
禾本科杂草 Gramineal weeds | 8.38 ± 0.77 c | 7.08 ± 0.39 c | 3.37 ± 0.15 c | 2.44 ± 0.08 c | 3.20 ± 0.19 d | 2.18 ± 0.08 d | ||
对照 Control | 6.67 ± 0.43 d | 5.25 ± 0.22 d | 2.67 ± 0.12 d | 1.90 ± 0.05 d | 2.49 ± 0.13 e | 1.56 ± 0.05 e |
处理 Treatment | 脲酶 Urease (mg·g-1·24 h-1) | 磷酸酶 Phosphatase (μg·g-1·2 h-1) | |||
---|---|---|---|---|---|
根际 Rhizosphere | 非根际 Non-rhizosphere | 根际 Rhizosphere | 非根际 Non-rhizosphere | ||
白三叶草 Trifolium repens | 0.49 ± 0.03 a | 0.43 ± 0.04 a | 128.40 ± 4.10 a | 119.50 ± 4.50 a | |
紫花苜蓿 Medicago sativa | 0.47 ± 0.02 a | 0.40 ± 0.02 a | 117.90 ± 2.50 b | 109.90 ± 3.60 b | |
高羊茅 Festuca arundincea | 0.36 ± 0.02 b | 0.30 ± 0.01 b | 97.20 ± 3.00 c | 85.30 ± 3.30 c | |
玉米秸 Corn stalks | 0.37 ± 0.03 b | 0.29 ± 0.03 b | 97.60 ± 5.10 c | 84.80 ± 4.80 c | |
小麦秸 Wheat straw | 0.38 ± 0.02 b | 0.31 ± 0.02 b | 98.90 ± 4.20 c | 86.40 ± 3.70 c | |
禾本科杂草 Gramineal weeds | 0.23 ± 0.01 c | 0.20 ± 0.01 c | 98.00 ± 5.00 c | 85.90 ± 4.40 c | |
对照 Control | 0.19 ± 0.01 d | 0.17 ± 0.01 c | 77.00 ± 3.40 d | 74.40 ± 2.60 d |
Table 5 Effects of different mulching materials on enzyme activities of soil (mean ± SE)
处理 Treatment | 脲酶 Urease (mg·g-1·24 h-1) | 磷酸酶 Phosphatase (μg·g-1·2 h-1) | |||
---|---|---|---|---|---|
根际 Rhizosphere | 非根际 Non-rhizosphere | 根际 Rhizosphere | 非根际 Non-rhizosphere | ||
白三叶草 Trifolium repens | 0.49 ± 0.03 a | 0.43 ± 0.04 a | 128.40 ± 4.10 a | 119.50 ± 4.50 a | |
紫花苜蓿 Medicago sativa | 0.47 ± 0.02 a | 0.40 ± 0.02 a | 117.90 ± 2.50 b | 109.90 ± 3.60 b | |
高羊茅 Festuca arundincea | 0.36 ± 0.02 b | 0.30 ± 0.01 b | 97.20 ± 3.00 c | 85.30 ± 3.30 c | |
玉米秸 Corn stalks | 0.37 ± 0.03 b | 0.29 ± 0.03 b | 97.60 ± 5.10 c | 84.80 ± 4.80 c | |
小麦秸 Wheat straw | 0.38 ± 0.02 b | 0.31 ± 0.02 b | 98.90 ± 4.20 c | 86.40 ± 3.70 c | |
禾本科杂草 Gramineal weeds | 0.23 ± 0.01 c | 0.20 ± 0.01 c | 98.00 ± 5.00 c | 85.90 ± 4.40 c | |
对照 Control | 0.19 ± 0.01 d | 0.17 ± 0.01 c | 77.00 ± 3.40 d | 74.40 ± 2.60 d |
相关因子 Correlation factor | 碱解氮 Alkali-hydrolyzable nitrogen | 速效磷 Available phosphorus | 速效钾 Available potassium | 全氮 Total nitrogen | 全磷 Total phosphorus | 全钾 Total potassium | 有机质 Organic matter | 含水率 Moisture content | pH |
---|---|---|---|---|---|---|---|---|---|
氨化细菌 Ammonification bacteria | 0.735** | -0.205 | 0.664** | 0.824** | 0.100 | 0.827** | 0.839** | 0.364 | -0.054 |
真菌 Fungi | 0.643* | -0.287 | 0.799** | 0.690** | -0.060 | 0.672* | 0.906** | 0.342 | -0.130 |
放线菌 Actinomyces | 0.851** | -0.295 | 0.461 | 0.904** | -0.010 | 0.873** | 0.728** | 0.217 | -0.093 |
脲酶 Urease | 0.878** | -0.056 | 0.594* | 0.948** | 0.259 | 0.924** | 0.772** | 0.575* | 0.201 |
磷酸酶 Phosphatase | 0.961** | -0.113 | 0.526 | 0.945** | 0.128 | 0.944** | 0.668** | 0.346 | 0.089 |
Table 6 Correlation coefficients among soil microbial quantity, enzyme activity and soil nutrient content
相关因子 Correlation factor | 碱解氮 Alkali-hydrolyzable nitrogen | 速效磷 Available phosphorus | 速效钾 Available potassium | 全氮 Total nitrogen | 全磷 Total phosphorus | 全钾 Total potassium | 有机质 Organic matter | 含水率 Moisture content | pH |
---|---|---|---|---|---|---|---|---|---|
氨化细菌 Ammonification bacteria | 0.735** | -0.205 | 0.664** | 0.824** | 0.100 | 0.827** | 0.839** | 0.364 | -0.054 |
真菌 Fungi | 0.643* | -0.287 | 0.799** | 0.690** | -0.060 | 0.672* | 0.906** | 0.342 | -0.130 |
放线菌 Actinomyces | 0.851** | -0.295 | 0.461 | 0.904** | -0.010 | 0.873** | 0.728** | 0.217 | -0.093 |
脲酶 Urease | 0.878** | -0.056 | 0.594* | 0.948** | 0.259 | 0.924** | 0.772** | 0.575* | 0.201 |
磷酸酶 Phosphatase | 0.961** | -0.113 | 0.526 | 0.945** | 0.128 | 0.944** | 0.668** | 0.346 | 0.089 |
因变量 Dependent variable | 自变量 Independent variable | X1 | Χ2 | Χ3 | Χ4 | Χ5 | 决定系数 Determination coefficient R2 | 间接通径系数之和 Sum of indirect path coefficient |
---|---|---|---|---|---|---|---|---|
Y1 | X1 | -8.314 | 4.770 | 3.534 | 68.912 | 11.476 | 69.123 | 88.692 |
X2 | -7.493 | 5.292 | 2.950 | 61.202 | 9.577 | 28.005 | 66.236 | |
X3 | -7.615 | 4.046 | 3.858 | 67.368 | 12.513 | 14.884 | 76.312 | |
X4 | -7.525 | 4.254 | 3.414 | 76.142 | 12.635 | 5 797.604 | 12.778 | |
X5 | -6.945 | 3.689 | 3.514 | 70.026 | 13.739 | 188.760 | 70.284 | |
Y2 | X1 | 12.727 | 31.480 | -30.602 | -198.413 | 23.160 | 161.977 | -174.375 |
X2 | 11.471 | 34.930 | -25.545 | -176.214 | 19.326 | 1 220.105 | -170.962 | |
X3 | 11.657 | 26.706 | -33.411 | -193.967 | 25.251 | 1 116.295 | -130.353 | |
X4 | 11.519 | 28.076 | -29.561 | -219.229 | 25.499 | 48 061.354 | 35.533 | |
X5 | 10.631 | 24.347 | -30.429 | -201.618 | 27.726 | 768.731 | -197.069 | |
Y3 | X1 | -0.094 | -0.004 | 0.109 | 3.601 | 0.042 | 0.009 | 3.748 |
X2 | -0.085 | -0.005 | 0.091 | 3.198 | 0.035 | 0.000 | 3.239 | |
X3 | -0.086 | -0.004 | 0.119 | 3.521 | 0.046 | 0.014 | 3.477 | |
X4 | -0.085 | -0.004 | 0.105 | 3.979 | 0.046 | 15.832 | 0.062 | |
X5 | -0.079 | -0.003 | 0.108 | 3.659 | 0.050 | 0.003 | 3.685 | |
Y4 | X1 | 0.173 | -0.345 | -0.050 | 10.382 | 0.718 | 0.030 | 10.705 |
X2 | 0.156 | -0.383 | -0.041 | 9.220 | 0.599 | 0.147 | 9.934 | |
X3 | 0.159 | -0.293 | -0.054 | 10.149 | 0.782 | 0.003 | 10.797 | |
X4 | 0.157 | -0.308 | -0.048 | 11.471 | 0.790 | 131.584 | 0.591 | |
X5 | 0.145 | -0.267 | -0.049 | 10.549 | 0.859 | 0.738 | 10.378 | |
Y5 | X1 | -0.289 | 8.094 | 0.535 | 27.068 | -0.731 | 0.084 | 34.966 |
X2 | -0.260 | 8.981 | 0.447 | 24.039 | -0.610 | 80.658 | 23.616 | |
X3 | -0.264 | 6.867 | 0.584 | 26.461 | -0.797 | 0.341 | 32.267 | |
X4 | -0.261 | 7.219 | 0.517 | 29.907 | -0.805 | 894.429 | 6.670 | |
X5 | -0.241 | 6.260 | 0.532 | 27.505 | -0.875 | 0.766 | 34.056 |
Table 7 Path coefficients of soil microbial quantity and enzyme activity to soil nutrient content
因变量 Dependent variable | 自变量 Independent variable | X1 | Χ2 | Χ3 | Χ4 | Χ5 | 决定系数 Determination coefficient R2 | 间接通径系数之和 Sum of indirect path coefficient |
---|---|---|---|---|---|---|---|---|
Y1 | X1 | -8.314 | 4.770 | 3.534 | 68.912 | 11.476 | 69.123 | 88.692 |
X2 | -7.493 | 5.292 | 2.950 | 61.202 | 9.577 | 28.005 | 66.236 | |
X3 | -7.615 | 4.046 | 3.858 | 67.368 | 12.513 | 14.884 | 76.312 | |
X4 | -7.525 | 4.254 | 3.414 | 76.142 | 12.635 | 5 797.604 | 12.778 | |
X5 | -6.945 | 3.689 | 3.514 | 70.026 | 13.739 | 188.760 | 70.284 | |
Y2 | X1 | 12.727 | 31.480 | -30.602 | -198.413 | 23.160 | 161.977 | -174.375 |
X2 | 11.471 | 34.930 | -25.545 | -176.214 | 19.326 | 1 220.105 | -170.962 | |
X3 | 11.657 | 26.706 | -33.411 | -193.967 | 25.251 | 1 116.295 | -130.353 | |
X4 | 11.519 | 28.076 | -29.561 | -219.229 | 25.499 | 48 061.354 | 35.533 | |
X5 | 10.631 | 24.347 | -30.429 | -201.618 | 27.726 | 768.731 | -197.069 | |
Y3 | X1 | -0.094 | -0.004 | 0.109 | 3.601 | 0.042 | 0.009 | 3.748 |
X2 | -0.085 | -0.005 | 0.091 | 3.198 | 0.035 | 0.000 | 3.239 | |
X3 | -0.086 | -0.004 | 0.119 | 3.521 | 0.046 | 0.014 | 3.477 | |
X4 | -0.085 | -0.004 | 0.105 | 3.979 | 0.046 | 15.832 | 0.062 | |
X5 | -0.079 | -0.003 | 0.108 | 3.659 | 0.050 | 0.003 | 3.685 | |
Y4 | X1 | 0.173 | -0.345 | -0.050 | 10.382 | 0.718 | 0.030 | 10.705 |
X2 | 0.156 | -0.383 | -0.041 | 9.220 | 0.599 | 0.147 | 9.934 | |
X3 | 0.159 | -0.293 | -0.054 | 10.149 | 0.782 | 0.003 | 10.797 | |
X4 | 0.157 | -0.308 | -0.048 | 11.471 | 0.790 | 131.584 | 0.591 | |
X5 | 0.145 | -0.267 | -0.049 | 10.549 | 0.859 | 0.738 | 10.378 | |
Y5 | X1 | -0.289 | 8.094 | 0.535 | 27.068 | -0.731 | 0.084 | 34.966 |
X2 | -0.260 | 8.981 | 0.447 | 24.039 | -0.610 | 80.658 | 23.616 | |
X3 | -0.264 | 6.867 | 0.584 | 26.461 | -0.797 | 0.341 | 32.267 | |
X4 | -0.261 | 7.219 | 0.517 | 29.907 | -0.805 | 894.429 | 6.670 | |
X5 | -0.241 | 6.260 | 0.532 | 27.505 | -0.875 | 0.766 | 34.056 |
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