生态因子
Ecological factors
|
分类等级
Grouping
|
样方总数(个)
Total sample
|
利用数(个)
Utilized number
|
百分率(%)
Percent
|
利用率(%)
Percent of
total sample
|
海拔高度
Elevation
|
≤2000 m
|
45
|
7
|
13.21%
|
15.56%
|
2000~2500 m
|
80
|
42
|
79.24%
|
52.50%
|
|
2500~2700 m
|
15
|
4
|
7.55%
|
26.67%
|
|
≥2700 m
|
7
|
0
|
0.00%
|
0.00%
|
|
植被类型
Vegetation type
|
落叶阔叶林
Broadleaf deciduous forest
|
27
|
4
|
7.55%
|
14.81%
|
针阔混交林
Coniferous-broadleaved forest
|
105
|
41
|
77.36%
|
39.05%
|
|
针叶林
Coniferous forest
|
9
|
6
|
11.32%
|
66.67%
|
|
亚高山草甸
Subalpinemeadow
|
6
|
2
|
3.77%
|
33.33%
|
|
乔木高度
Canopy height
|
≤5 m
|
23
|
16
|
30.19%
|
69.57%
|
5~10 m
|
74
|
22
|
41.51%
|
29.73%
|
|
≥10 m
|
50
|
15
|
28.30%
|
30.00%
|
|
乔木郁闭度
Canopy coverage of trees
|
≤0.2
|
30
|
13
|
24.53%
|
43.33%
|
0.3~0.5
|
86
|
31
|
58.49%
|
36.05%
|
|
0.5~0.7
|
28
|
9
|
16.98%
|
32.14%
|
|
≥0.8
|
3
|
0
|
0.00%
|
0.00%
|
|
灌木盖度
Cover of shrub
|
≤0.2
|
89
|
36
|
67.92%
|
40.45%
|
0.3~0.5
|
43
|
16
|
30.19%
|
37.21%
|
|
0.5~0.7
|
6
|
1
|
1.89%
|
16.67%
|
|
≥0.8
|
9
|
0
|
0.00%
|
0.00%
|
|
竹林盖度
Cover of bamboo
|
无箭竹分布
Nodistribution ofbamboo
|
33
|
13
|
24.53%
|
39.39%
|
≤0.3
|
68
|
18
|
33.96%
|
26.47%
|
|
0.3~0.6
|
25
|
12
|
22.64%
|
48.00%
|
|
≥0.6
|
21
|
10
|
18.87%
|
47.62%
|
|
坡位
Slope position
|
下坡位
Slope bottom
|
26
|
4
|
7.55%
|
15.38%
|
中坡位
Slope middle
|
57
|
16
|
30.19%
|
28.07%
|
|
上坡位
Slope peak
|
64
|
33
|
62.26%
|
51.56%
|
|
坡度
Slope gradient
|
≤25°
|
92
|
29
|
54.72%
|
31.52%
|
25°~40°
|
32
|
16
|
30.19%
|
50.00%
|
|
≥40°
|
23
|
8
|
15.09%
|
34.78%
|
|
坡向
Aspect
|
阳坡
Slope facing south
|
45
|
14
|
26.41%
|
31.11%
|
半阴半阳坡
Half sunny-shady direction
|
80
|
35
|
66.04%
|
43.75%
|
|
阴坡
Slope facing northern
|
22
|
4
|
7.55%
|
18.18%
|
|
隐蔽性
Shelter
|
≤5 m
|
12
|
5
|
9.44%
|
41.67%
|
5~10 m
|
41
|
12
|
22.64%
|
29.27%
|
|
≥15 m
|
94
|
36
|
67.92%
|
38.30%
|
|
水源距离
Distance to water resource
|
≤50 m
|
32
|
7
|
13.21%
|
21.88%
|
50~100 m
|
13
|
7
|
13.21%
|
53.85%
|
|
100~150 m
|
19
|
8
|
15.09%
|
42.11%
|
|
≥150 m
|
83
|
31
|
58.49%
|
37.35%
|
|
人为干扰距离Distance to human disturbance
|
≤10 m
|
41
|
13
|
24.53%
|
31.71%
|
10~50 m
|
50
|
24
|
45.28%
|
48.00%
|
|
≥50 m
|
56
|
16
|
30.19%
|
28.57%
|
成份components
|
初始特征值initial eigenvalue
|
提取平方和载入extraction of square and load
|
||||
特征值
Eigenvalue
|
贡献率 %
% of variance
|
累积贡献率 %
Cumulative %
|
特征值
Eigenvalue
|
贡献率 %
% of variance
|
累积贡献率 %
Cumulative %
|
|
1
|
2.557
|
21.306
|
21.306
|
2.557
|
21.306
|
21.306
|
2
|
1.764
|
14.697
|
36.003
|
1.764
|
14.697
|
36.003
|
3
|
1.472
|
12.266
|
48.269
|
1.472
|
12.266
|
48.269
|
4
|
1.197
|
9.975
|
58.244
|
1.197
|
9.975
|
58.244
|
5
|
1.070
|
8.915
|
67.159
|
1.070
|
8.915
|
67.159
|
6
|
1.021
|
8.510
|
75.668
|
1.021
|
8.510
|
75.668
|
7
|
.764
|
6.366
|
82.035
|
|
|
|
8
|
.606
|
5.048
|
87.083
|
|
|
|
9
|
.580
|
4.834
|
91.916
|
|
|
|
10
|
.423
|
3.525
|
95.442
|
|
|
|
11
|
.325
|
2.709
|
98.150
|
|
|
|
12
|
.222
|
1.850
|
100.000
|
|
|
|
生态因子Ecological factors
|
主成分Principal components
|
|||||
1
|
2
|
3
|
4
|
5
|
6
|
|
海拔高度Elevation
|
.342
|
.417
|
-.135
|
.580
|
.220
|
.189
|
植被类型Vegetation type
|
.104
|
.809
|
-.164
|
.142
|
-.102
|
.185
|
乔木高度Canopy height
|
.135
|
-.111
|
.235
|
.757
|
.218
|
-.167
|
乔木郁闭度Canopy coverage of trees
|
-.685
|
-.155
|
.325
|
-.132
|
-.077
|
.301
|
灌木盖度Cover of shrub
|
-.003
|
.020
|
-.074
|
.005
|
.121
|
.916
|
竹林盖度Cover of bamboo
|
.817
|
-.090
|
.213
|
-.002
|
.034
|
.223
|
坡位Slope position
|
.049
|
.774
|
.144
|
-.166
|
.171
|
-.187
|
坡度Slope gradient
|
.262
|
-.133
|
.738
|
.208
|
-.344
|
.019
|
坡向Aspect
|
.040
|
.049
|
.013
|
.117
|
.891
|
.136
|
隐蔽性Shelter
|
-.004
|
-.068
|
-.810
|
.009
|
-.190
|
.093
|
水源距离Distance to water resource
|
.683
|
.375
|
.292
|
.008
|
-.036
|
-.074
|
人为干扰距离Distance to human disturbance
|
.403
|
.010
|
.043
|
-.655
|
.388
|
-.168
|