FOREST RESOURCES WANAGEMENT ›› 2020, Vol. 0 ›› Issue (4): 34-43.doi: 10.13466/j.cnki.lyzygl.2020.04.006
• Scientific Research • Previous Articles Next Articles
LI Xianxian1(), YANG Peihua2, HAO Hongke1(), KANG Le3, CHEN Xuejiao4
Received:
2020-06-15
Revised:
2020-07-17
Online:
2020-08-28
Published:
2020-10-10
Contact:
HAO Hongke
E-mail:lixx609@163.com;hhk2018@126.com
CLC Number:
LI Xianxian, YANG Peihua, HAO Hongke, KANG Le, CHEN Xuejiao. A Study on Rational Management Density of Pinus Tabulaeformis Plantation[J]. FOREST RESOURCES WANAGEMENT, 2020, 0(4): 34-43.
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URL: http://www.lyzygl.com.cn/EN/10.13466/j.cnki.lyzygl.2020.04.006
Tab.1
Basic information of sample plots
样地号 | 样地经纬度 | 坡度/(°) | 坡向 | 坡位 | 标准地株数 /株 | 林分密度/ (株/hm2) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
东经/(°) | 北纬/(°) | |||||||||||
1 | 110.323488 | 34.056007 | 38 | 阴坡 | 全 | 108 | 1728 | |||||
2 | 110.325408 | 34.055743 | 38 | 阴坡 | 上坡 | 155 | 2480 | |||||
3 | 110.323624 | 34.060054 | 29 | 阳坡 | 下坡 | 63 | 1008 | |||||
4 | 110.322616 | 34.061043 | 30 | 阳坡 | 坡上 | 198 | 3168 | |||||
5 | 110.306501 | 34.071406 | 36 | 阴坡 | 坡下 | 185 | 2960 | |||||
6 | 110.306638 | 34.068115 | 29 | 阴坡 | 坡下 | 118 | 1888 | |||||
7 | 110.30418 | 34.082407 | 33 | 阳坡 | 坡下 | 168 | 2688 | |||||
8 | 110.305449 | 34.068068 | 27 | 阴坡 | 坡中 | 158 | 2528 | |||||
9 | 110.306146 | 34.067417 | 16 | 阳坡 | 坡中 | 166 | 2656 | |||||
10 | 110.304111 | 34.06819 | 22 | 阳坡 | 坡上 | 207 | 3312 | |||||
11 | 110.323777 | 34.101611 | 27 | 阴坡 | 坡下 | 98 | 1568 | |||||
12 | 110.32265 | 34.099425 | 30 | 阳坡 | 坡下 | 81 | 1296 | |||||
13 | 110.322296 | 34.098762 | 40 | 阳坡 | 坡中 | 166 | 2656 | |||||
14 | 110.3225 | 34.099167 | 43 | 阴坡 | 坡上 | 104 | 1664 | |||||
15 | 110.321948 | 34.098143 | 34 | 阳坡 | 坡中 | 73 | 1168 | |||||
16 | 110.3530556 | 34.049722 | 28 | 阴坡 | 坡下 | 53 | 848 | |||||
17 | 110.353195 | 34.048858 | 42 | 阴坡 | 坡中 | 82 | 1312 | |||||
18 | 110.3527778 | 34.048056 | 27 | 阳坡 | 坡中 | 117 | 1872 | |||||
19 | 110.335885 | 34.093563 | 36 | 阴坡 | 坡下 | 124 | 1984 | |||||
20 | 110.32205 | 34.097486 | 36.5 | 阴坡 | 坡中 | 210 | 3360 | |||||
21 | 110.337404 | 34.094211 | 39 | 阴坡 | 坡下 | 97 | 1552 | |||||
22 | 110.339345 | 34.094153 | 36 | 阴坡 | 坡下 | 133 | 2128 | |||||
23 | 110.340421 | 34.095143 | 41 | 阴坡 | 坡下 | 148 | 2368 | |||||
24 | 110.352485 | 34.049126 | 38 | 阴坡 | 坡下 | 75 | 1200 | |||||
25 | 110.343439 | 34.101554 | 19 | 阴坡 | 上 | 208 | 3328 | |||||
26 | 110.343905 | 34.101979 | 14 | 阴坡 | 上 | 240 | 3840 | |||||
27 | 110.4019444 | 34.0713889 | 36 | 阳坡 | 上 | 84 | 1344 | |||||
28 | 110.400747 | 34.070802 | 35 | 阴坡 | 中 | 104 | 1664 | |||||
29 | 110.394223 | 34.04599 | 36 | 阴坡 | 中 | 292 | 4672 | |||||
30 | 110.3427778 | 34.1 | 19 | 阴坡 | 上 | 145 | 2320 | |||||
31 | 110.344556 | 34.102836 | 13 | 阴坡 | 上 | 117 | 1872 | |||||
32 | 110.5108333 | 34.033333 | 24 | 阳坡 | 上 | 157 | 2512 | |||||
33 | 110.510461 | 34.028003 | 15 | 阴坡 | 上 | 112 | 1792 | |||||
34 | 110.5075 | 34.028611 | 22 | 阴坡 | 上 | 145 | 2320 | |||||
35 | 110.511895 | 34.028282 | 26 | 阴坡 | 上 | 139 | 2224 | |||||
样地号 | 样地经纬度 | 坡度/(°) | 坡向 | 坡位 | 标准地株数/ 株 | 林分密度/ (株/hm2) | ||||||
东经/(°) | 北纬/(°) | |||||||||||
36 | 110.380851 | 34.002207 | 22 | 阳坡 | 上 | 21 | 336 | |||||
37 | 110.379471 | 34.002287 | 29 | 阳坡 | 上 | 21 | 336 | |||||
38 | 110.342882 | 34.099753 | 12 | 阳坡 | 上 | 320 | 5120 | |||||
39 | 110.345409 | 34.105477 | 15 | 阴坡 | 上 | 177 | 2832 | |||||
40 | 110.342882 | 34.099753 | 13 | 阳坡 | 上 | 302 | 4832 | |||||
41 | 110.344285 | 34.107015 | 20 | 阳坡 | 上 | 119 | 1904 | |||||
42 | 110.343596 | 34.108033 | 20 | 阳坡 | 上 | 139 | 2224 | |||||
43 | 110.18326 | 34.5426 | 22 | 阳坡 | 上 | 171 | 2565 | |||||
44 | 110.345254 | 34.106188 | 15 | 阴坡 | 上 | 110 | 1650 | |||||
45 | 110.34291 | 34.108588 | 23 | 阳坡 | 上 | 120 | 1800 | |||||
46 | 110.20559 | 34.6474 | 20 | 阳坡 | 上 | 121 | 1815 | |||||
47 | 110.344484 | 34.105648 | 20 | 阴坡 | 上 | 113 | 1695 | |||||
48 | 110.342806 | 34.099949 | 23 | 阴坡 | 上 | 156 | 2340 | |||||
49 | 110.20521 | 34.6457 | 15 | 阳坡 | 下 | 97 | 1455 | |||||
50 | 110.342986 | 34.102446 | 20 | 阴坡 | 上 | 255 | 3825 | |||||
51 | 110.343803 | 34.099348 | 16 | 阳坡 | 上 | 239 | 3585 | |||||
52 | 110.20467 | 34.6450 | 14 | 阳坡 | 下 | 189 | 2835 | |||||
53 | 110.343001 | 34.102102 | 20 | 阳坡 | 上 | 169 | 2535 | |||||
54 | 110.340445 | 34.100988 | 16 | 阴坡 | 上 | 135 | 2025 | |||||
55 | 110.20526 | 34.5966 | 15 | 阳坡 | 上 | 230 | 3450 | |||||
56 | 110.342425 | 34.102863 | 17 | 阳坡 | 上 | 246 | 3690 | |||||
57 | 110.337679 | 34.100578 | 23 | 阴坡 | 中 | 113 | 1695 | |||||
58 | 110.20666 | 34.5929 | 10 | 阳坡 | 下 | 290 | 4350 | |||||
59 | 110.341313 | 34.103005 | 10 | 阳坡 | 上 | 127 | 1905 | |||||
60 | 110.518462 | 33.9677 | 26 | 阴坡 | 上 | 19 | 285 | |||||
61 | 110.31053 | 33.58033 | 32 | 阴坡 | 下 | 26 | 390 | |||||
62 | 110.517512 | 33.969096 | 34 | 阳坡 | 上 | 28 | 420 | |||||
63 | 110.518383 | 33.966882 | 35 | 阳坡 | 下 | 27 | 405 | |||||
64 | 110.516544 | 33.969605 | 36 | 阴坡 | 中 | 182 | 2730 | |||||
65 | 110.449916 | 34.052308 | 40 | 阴坡 | 下 | 134 | 2010 | |||||
66 | 110.450737 | 34.052166 | 38 | 阴坡 | 中 | 186 | 2790 | |||||
67 | 110.449305 | 34.051875 | 43 | 阳坡 | 上 | 22 | 330 | |||||
68 | 110.424916 | 33.992712 | 38 | 阳坡 | 下 | 135 | 2025 | |||||
69 | 110.424791 | 33.993961 | 36 | 阴坡 | 上 | 121 | 1815 |
Tab.2
Table of crown and DBH of pinus tabulaeformis in Luonan County
径阶/cm | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
---|---|---|---|---|---|---|---|---|
样本个数/个 | 55 | 260 | 1114 | 340 | 278 | 153 | 74 | 62 |
平均胸径/cm | 4.3 | 6.1 | 7.4 | 9.9 | 11.8 | 13.8 | 15.9 | 17.9 |
平均冠幅/m | 1.37 | 1.76 | 2.15 | 2.64 | 3.07 | 3.55 | 3.76 | 4.38 |
径阶/cm | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
样本个数/个 | 56 | 38 | 29 | 16 | 8 | 5 | 4 | 2 |
平均胸径/cm | 19.9 | 22.0 | 24.0 | 26.0 | 28.0 | 29.8 | 31.9 | 33.5 |
平均冠幅/m | 4.67 | 4.92 | 5.13 | 5.33 | 5.63 | 5.72 | 6.36 | 6.00 |
Tab.4
Results of regression models related to crown width and DBH
序号 | 表达式 | a | b | c | R2 | SSE | F值 |
---|---|---|---|---|---|---|---|
(1) | CD=a+bD | 0.18058 | 1.06554 | 0.98005 | 0.02812 | 4716.06583 | |
(2) | CD=a+bDc | -0.50669 | 0.79871 | 0.62976 | 0.98738 | 0.01778 | 23943.4899 |
(3) | CD=a+bD-1 | 5.8722 | -26.32701 | 0.76814 | 0.32669 | 1909.6053 | |
(4) | CD=a+ bD+cD2 | 0.59186 | 0.24838 | -0.00194 | 0.98577 | 0.02005 | 21228.1291 |
(5) | LnCD=a+bD | 0.6518 | 0.0415 | 0.93659 | 0.08935 | 7108.30382 |
Tab.5
Table of maximum density of diameter grade
径阶/cm | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
---|---|---|---|---|---|---|---|---|
理论冠幅(CD)/m | 1.41 | 1.96 | 2.45 | 2.90 | 3.31 | 3.70 | 4.07 | 4.42 |
最大密度(Nmax)/(株/hm2) | 6445 | 3308 | 2117 | 1515 | 1160 | 929 | 768 | 651 |
修正最大密度( | 10801 | 5544 | 3549 | 2540 | 1944 | 1557 | 1287 | 1090 |
径阶/cm | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
理论冠幅(CD)/m | 4.76 | 5.09 | 5.40 | 5.71 | 6.01 | 6.30 | 6.58 | 6.85 |
最大密度(Nmax)/(株/hm2) | 561 | 493 | 436 | 391 | 353 | 321 | 294 | 271 |
修正最大密度( | 941 | 824 | 731 | 655 | 592 | 538 | 493 | 454 |
Tab.6
Table of density management in standard plots
样地号 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 11 |
---|---|---|---|---|---|---|---|---|---|---|
密度经营度DN | 0.611 | 0.726 | 0.317 | 0.927 | 0.725 | 0.743 | 0.981 | 0.922 | 0.777 | 0.739 |
样地号 | 12 | 14 | 15 | 16 | 17 | 18 | 19 | 53 | 21 | 22 |
密度经营度DN | 0.556 | 0.579 | 0.420 | 0.506 | 0.724 | 0.871 | 0.828 | 0.896 | 0.818 | 0.913 |
样地号 | 54 | 24 | 27 | 28 | 57 | 30 | 31 | 32 | 33 | 34 |
密度经营度DN | 0.905 | 0.544 | 0.553 | 0.724 | 0.861 | 0.968 | 0.859 | 0.804 | 0.654 | 0.873 |
样地号 | 35 | 36 | 37 | 39 | 59 | 41 | 42 | 60 | 44 | 45 |
密度经营度DN | 0.928 | 0.395 | 0.484 | 0.937 | 0.728 | 0.897 | 0.994 | 0.383 | 0.798 | 0.762 |
样地号 | 46 | 47 | 48 | 49 | 61 | |||||
密度经营度DN | 0.811 | 0.928 | 0.881 | 0.757 | 0.412 |
Tab.7
Table of normal distribution hypothesis testing for maximum density model
DNC | Gi | Bi | Ui | φ(U) | DNi | nDNi | χ2 |
---|---|---|---|---|---|---|---|
0.30~0.35 | 1 | -0.38593 | -2.14406 | 0.01601 | 0.04006 | 1.80261 | 0.357 |
0.35~0.40 | 2 | -0.33593 | -1.86628 | 0.03100 | 0.01499 | 0.67442 | 2.605 |
0.40~0.45 | 2 | -0.28593 | -1.58850 | 0.05609 | 0.02509 | 1.12885 | 0.672 |
0.45~0.50 | 1 | -0.23593 | -1.31072 | 0.09498 | 0.03889 | 1.75001 | 0.321 |
0.50~0.55 | 2 | -0.18593 | -1.03294 | 0.15081 | 0.05584 | 2.51276 | 0.105 |
0.55~0.60 | 3 | -0.13593 | -0.75517 | 0.22507 | 0.07426 | 3.34168 | 0.035 |
0.60~0.65 | 2 | -0.08593 | -0.47739 | 0.31654 | 0.09147 | 4.11606 | 1.088 |
0.65~0.70 | 1 | -0.03593 | -0.19961 | 0.42089 | 0.10435 | 4.69574 | 2.909 |
0.70~0.75 | 7 | 0.01407 | 0.07817 | 0.53115 | 0.11026 | 4.96170 | 0.837 |
0.75~0.80 | 4 | 0.06407 | 0.35594 | 0.63906 | 0.10791 | 4.85580 | 0.151 |
0.80~0.85 | 4 | 0.11407 | 0.63372 | 0.73687 | 0.09781 | 4.40145 | 0.037 |
0.85~0.90 | 7 | 0.16407 | 0.91150 | 0.81898 | 0.08212 | 3.69518 | 2.956 |
0.90~0.95 | 6 | 0.21407 | 1.18928 | 0.88283 | 0.06385 | 2.87329 | 3.402 |
0.95~1.00 | 3 | 0.26407 | 1.46706 | 0.92882 | 0.04598 | 2.06931 | 0.419 |
∑ | 45 | 42.87886 | 15.894 |
Tab.8
Table of reasonable management density of pinustabulaeformis in Luonan County
径阶/cm | 最大密度/ (株/hm2) | 密度经营度合理经营区间 | |||||
---|---|---|---|---|---|---|---|
0.52 | 0.60 | 0.70 | 0.8 | 0.94 | |||
4 | 10801 | 5617 | 6481 | 7561 | 8641 | 10153 | |
6 | 5544 | 2883 | 3327 | 3881 | 4435 | 5212 | |
8 | 3549 | 1845 | 2129 | 2484 | 2839 | 3336 | |
10 | 2540 | 1321 | 1524 | 1778 | 2032 | 2387 | |
12 | 1944 | 1011 | 1167 | 1361 | 1555 | 1828 | |
14 | 1557 | 810 | 934 | 1090 | 1245 | 1463 | |
16 | 1287 | 669 | 772 | 901 | 1030 | 1210 | |
18 | 1090 | 567 | 654 | 763 | 872 | 1025 | |
20 | 941 | 489 | 565 | 659 | 753 | 884 | |
22 | 824 | 429 | 495 | 577 | 659 | 775 | |
24 | 731 | 380 | 439 | 512 | 585 | 687 | |
26 | 655 | 340 | 393 | 458 | 524 | 615 | |
28 | 592 | 308 | 355 | 414 | 473 | 556 | |
30 | 538 | 280 | 323 | 377 | 431 | 506 | |
32 | 493 | 257 | 296 | 345 | 395 | 464 | |
34 | 454 | 236 | 273 | 318 | 364 | 427 |
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