Acta Prataculturae Sinica ›› 2025, Vol. 34 ›› Issue (1): 226-237.DOI: 10.11686/cyxb2024070
Zhen-hao ZHANG1(), Zi-yu JIA1, Xin-yu LI1, Yun-xiang CHENG1,2()
Received:
2024-03-05
Revised:
2024-05-08
Online:
2025-01-20
Published:
2024-11-04
Contact:
Yun-xiang CHENG
Zhen-hao ZHANG, Zi-yu JIA, Xin-yu LI, Yun-xiang CHENG. Grazing behavior traits of cattle and sheep on mixed pasture in desert steppe[J]. Acta Prataculturae Sinica, 2025, 34(1): 226-237.
物种 Species | 分类类别 Classification types | 模型精度Accuracy | ||
---|---|---|---|---|
XGBoost | SVM | CART | ||
牛Cattle | 二分类Binary classification | 96.44 | 95.80 | 93.86 |
多分类Multiple classification | 77.00 | 73.00 | 74.70 | |
羊Sheep | 二分类Binary classification | 94.16 | 96.27 | 93.52 |
多分类Multiple classification | 75.61 | 72.85 | 73.58 |
Table 1 Classification accuracy of machine learning model (%)
物种 Species | 分类类别 Classification types | 模型精度Accuracy | ||
---|---|---|---|---|
XGBoost | SVM | CART | ||
牛Cattle | 二分类Binary classification | 96.44 | 95.80 | 93.86 |
多分类Multiple classification | 77.00 | 73.00 | 74.70 | |
羊Sheep | 二分类Binary classification | 94.16 | 96.27 | 93.52 |
多分类Multiple classification | 75.61 | 72.85 | 73.58 |
指标 Indexes | 2021 | 2022 | ||||
---|---|---|---|---|---|---|
7月July | 8月August | 9月September | 7月July | 8月August | 9月September | |
地上生物量Above ground biomass (AGB, g·m-2) | 40.12±4.96a | 50.72±9.55a | 58.02±8.52a | 41.07±6.35ab | 50.56±5.07a | 37.26±6.03b |
粗脂肪Ether extract (EE, g·100 g-1) | 2.27±0.15a | 2.65±0.16a | 2.44±0.04a | 1.81±0.07a | 2.02±0.08a | 1.91±0.10a |
粗蛋白Crude protein (CP, g·100 g-1) | 16.46±0.98a | 17.75±0.86a | 17.25±1.12a | 16.05±1.18b | 19.52±1.15a | 16.26±1.09b |
中性洗涤纤维Neutral detergent fibre (NDF, g·100 g-1) | 54.74±0.40b | 56.70±0.26a | 57.01±0.42a | 38.66±1.56ab | 36.64±1.39b | 41.48±1.26a |
酸性洗涤纤维Acid detergent fibre (ADF, g·100 g-1) | 36.55±0.27a | 37.00±0.30a | 37.16±0.23a | 32.91±1.72a | 32.83±1.28a | 34.68±1.24a |
香农指数Shannon index | 2.12±0.055a | 2.28±0.071a | 2.25±0.060a | 2.00±0.046a | 1.96±0.059ab | 1.83±0.047b |
均匀度指数Pielou index | 0.89±0.005a | 0.88±0.013ab | 0.86±0.009b | 0.85±0.009a | 0.85±0.011a | 0.84±0.011a |
禾本科重要值Graminae important value | 0.251±0.11a | 0.235±0.08a | 0.248±0.06a | 0.180±0.08b | 0.195±0.11ab | 0.243±0.12a |
百合科重要值Liliaceae important value | 0.252±0.16a | 0.280±0.15a | 0.261±0.13a | 0.218±0.15ab | 0.261±0.18a | 0.177±0.16b |
豆科重要值Leguminosae important value | 0.154±0.10a | 0.138±0.08a | 0.177±0.10a | 0.130±0.11a | 0.085±0.10a | 0.108±0.16a |
旋花科重要值Convolvulaceae important value | 0.148±0.09a | 0.083±0.07ab | 0.062±0.09b | 0.116±0.13a | 0.091±0.09a | 0.140±0.15a |
菊科重要值Compositae important value | 0.060±0.06a | 0.007±0.02b | 0.014±0.02b | 0.022±0.03a | 0.011±0.02a | 0.011±0.02a |
毒杂草重要值Poisonous weeds important value | 0.065±0.09a | 0.085±0.10a | 0.077±0.10a | 0.069±0.13a | 0.074±0.14a | 0.071±0.15a |
其他杂类草重要值Other forbs important value | 0.073±0.04b | 0.172±0.06a | 0.163±0.09a | 0.202±0.14a | 0.283±0.13a | 0.249±0.15a |
Table 2 Monthly dynamics of nutritional quality and community species composition of pasture forages
指标 Indexes | 2021 | 2022 | ||||
---|---|---|---|---|---|---|
7月July | 8月August | 9月September | 7月July | 8月August | 9月September | |
地上生物量Above ground biomass (AGB, g·m-2) | 40.12±4.96a | 50.72±9.55a | 58.02±8.52a | 41.07±6.35ab | 50.56±5.07a | 37.26±6.03b |
粗脂肪Ether extract (EE, g·100 g-1) | 2.27±0.15a | 2.65±0.16a | 2.44±0.04a | 1.81±0.07a | 2.02±0.08a | 1.91±0.10a |
粗蛋白Crude protein (CP, g·100 g-1) | 16.46±0.98a | 17.75±0.86a | 17.25±1.12a | 16.05±1.18b | 19.52±1.15a | 16.26±1.09b |
中性洗涤纤维Neutral detergent fibre (NDF, g·100 g-1) | 54.74±0.40b | 56.70±0.26a | 57.01±0.42a | 38.66±1.56ab | 36.64±1.39b | 41.48±1.26a |
酸性洗涤纤维Acid detergent fibre (ADF, g·100 g-1) | 36.55±0.27a | 37.00±0.30a | 37.16±0.23a | 32.91±1.72a | 32.83±1.28a | 34.68±1.24a |
香农指数Shannon index | 2.12±0.055a | 2.28±0.071a | 2.25±0.060a | 2.00±0.046a | 1.96±0.059ab | 1.83±0.047b |
均匀度指数Pielou index | 0.89±0.005a | 0.88±0.013ab | 0.86±0.009b | 0.85±0.009a | 0.85±0.011a | 0.84±0.011a |
禾本科重要值Graminae important value | 0.251±0.11a | 0.235±0.08a | 0.248±0.06a | 0.180±0.08b | 0.195±0.11ab | 0.243±0.12a |
百合科重要值Liliaceae important value | 0.252±0.16a | 0.280±0.15a | 0.261±0.13a | 0.218±0.15ab | 0.261±0.18a | 0.177±0.16b |
豆科重要值Leguminosae important value | 0.154±0.10a | 0.138±0.08a | 0.177±0.10a | 0.130±0.11a | 0.085±0.10a | 0.108±0.16a |
旋花科重要值Convolvulaceae important value | 0.148±0.09a | 0.083±0.07ab | 0.062±0.09b | 0.116±0.13a | 0.091±0.09a | 0.140±0.15a |
菊科重要值Compositae important value | 0.060±0.06a | 0.007±0.02b | 0.014±0.02b | 0.022±0.03a | 0.011±0.02a | 0.011±0.02a |
毒杂草重要值Poisonous weeds important value | 0.065±0.09a | 0.085±0.10a | 0.077±0.10a | 0.069±0.13a | 0.074±0.14a | 0.071±0.15a |
其他杂类草重要值Other forbs important value | 0.073±0.04b | 0.172±0.06a | 0.163±0.09a | 0.202±0.14a | 0.283±0.13a | 0.249±0.15a |
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