生物多样性 ›› 2013, Vol. 21 ›› Issue (6): 651-657. DOI: 10.3724/SP.J.1003.2013.07095
所属专题: 青藏高原生物多样性与生态安全
董世魁1,*(), 汤琳1, 王学霞1, 刘颖慧2, 刘世梁1, 刘全儒3, 吴娱1, 李媛媛1, 苏旭坤1, 赵晨1
收稿日期:
2013-04-11
接受日期:
2013-09-05
出版日期:
2013-11-20
发布日期:
2013-12-02
通讯作者:
董世魁
基金资助:
Shikui Dong1,*(), Lin Tang1, Xuexia Wang1, Yinghui Liu2, Shiliang Liu1, Quanru Liu2, Yu Wu1, Yuanyuan Li1, Xukun Su1, Chen Zhao1
Received:
2013-04-11
Accepted:
2013-09-05
Online:
2013-11-20
Published:
2013-12-02
Contact:
Dong Shikui
摘要:
为科学设定青藏高原地区草地植物多样性研究的样地面积, 提高研究结果的精确性, 本研究拟合研究了7种模型, 分别筛选出高寒草甸、高寒草原和高寒荒漠3种草地类型的最优拟合模型, 并基于种-面积曲线计算各类草地植物多样性估测的适宜样地面积。结果表明: (1)非饱和曲线模型较适宜拟合青藏高原地区的种-面积关系; (2)3类高寒草地健康样地的最小面积均大于退化样地; (3)对于高寒草甸, 健康样地和退化样地的最小面积分别为108 m2和82 m2; 对于高寒草原, 健康样地和退化样地的最小面积分别为130 m2和81 m2 ; 对于高寒荒漠, 健康样地和退化样地的最小面积分别为60 m2和41 m2。
董世魁, 汤琳, 王学霞, 刘颖慧, 刘世梁, 刘全儒, 吴娱, 李媛媛, 苏旭坤, 赵晨 (2013) 青藏高原高寒草地植物多样性测定的最小样地面积. 生物多样性, 21, 651-657. DOI: 10.3724/SP.J.1003.2013.07095.
Shikui Dong,Lin Tang,Xuexia Wang,Yinghui Liu,Shiliang Liu,Quanru Liu,Yu Wu,Yuanyuan Li,Xukun Su,Chen Zhao (2013) Minimum plot size for estimating plant biodiversity of the alpine grasslands on the Qinghai-Tibetan Plateau. Biodiversity Science, 21, 651-657. DOI: 10.3724/SP.J.1003.2013.07095.
草地类型 Grassland type | 健康状况 Health status | 方程 Function | a | b | c | F | Pr>F | R2 |
---|---|---|---|---|---|---|---|---|
高寒草甸 Alpine meadow | 健康 Healthy | 1 | 3.441 | 24.946 | - | 651.257 | <0.0001 | 0.875 |
2 | 6.272 | 40.071 | 0.876 | 423.507 | <0.0001 | 0.871 | ||
3 | 3.451 | 1,364.587 | - | 650.831 | <0.0001 | 0.875 | ||
4 | 23.342 | 0.113 | - | 482.725 | <0.0001 | 0.832 | ||
5 | 26.939 | 0.278 | 41.808 | 274.171 | <0.0001 | 0.804 | ||
6 | 1.680 | 0.466 | 41.638 | 259.646 | <0.0001 | 0.793 | ||
7 | 217.283 | 5.588 | - | 271.118 | <0.0001 | 0.708 | ||
退化 Degraded | 1 | 2.769 | 21.515 | - | 1,540.854 | <0.0001 | 0.937 | |
2 | 11.953 | 69.405 | 0.732 | 1,100.360 | <0.0001 | 0.941 | ||
3 | 2.770 | 2,353.238 | - | 1,532.933 | <0.0001 | 0.937 | ||
4 | 20.307 | 0.106 | - | 846.787 | <0.0001 | 0.886 | ||
5 | 21.343 | 0.385 | 34.407 | 380.051 | <0.0001 | 0.832 | ||
6 | 1.478 | 0.529 | 34.447 | 348.447 | <0.0001 | 0.818 | ||
7 | 238.525 | 7.376 | - | 422.309 | <0.0001 | 0.776 | ||
高寒草原 Alpine steppe | 健康 Healthy | 1 | 1.862 | 12.181 | - | 1,427.120 | <0.0001 | 0.947 |
2 | 2.991 | 17.420 | 0.881 | 941.193 | <0.0001 | 0.946 | ||
3 | 1.871 | 658.661 | - | 1,418.386 | <0.0001 | 0.947 | ||
4 | 11.255 | 0.124 | - | 747.963 | <0.0001 | 0.900 | ||
5 | 14.171 | 0.490 | 20.504 | 264.256 | <0.0001 | 0.814 | ||
6 | 2.277 | 1.836 | 19.771 | 240.815 | <0.0001 | 0.797 | ||
7 | 93.693 | 4.730 | - | 393.353 | <0.0001 | 0.813 | ||
退化 Degraded | 1 | 2.015 | 13.200 | - | 353.851 | <0.0001 | 0.870 | |
2 | 3.554 | 18.528 | 0.243 | 226.514 | <0.0001 | 0.865 | ||
3 | 2.023 | 670.840 | - | 352.227 | <0.0001 | 0.870 | ||
4 | 12.174 | 0.124 | - | 266.130 | <0.0001 | 0.829 | ||
5 | 15.700 | 1.006 | 21.505 | 110.500 | <0.0001 | 0.730 | ||
6 | 2.280 | 1.912 | 21.357 | 104.383 | <0.0001 | 0.715 | ||
7 | 104.588 | 4.889 | - | 171.842 | <0.0001 | 0.740 | ||
高寒荒漠 Alpine desert | 健康 Healthy | 1 | 0.911 | 4.119 | - | 113.059 | <0.0001 | 0.776 |
2 | 0.039 | 1.206 | 6.395 | 99.742 | <0.0001 | 0.827 | ||
3 | 1.062 | 29.764 | - | 128.208 | <0.0001 | 0.801 | ||
4 | 3.298 | 0.189 | - | 156.035 | <0.0001 | 0.834 | ||
5 | 8.207 | 0.023 | 10.542 | 71.423 | <0.0001 | 0.764 | ||
6 | 3.284 | 0.112 | 9.667 | 63.087 | <0.0001 | 0.735 | ||
7 | 2.141 | 0.221 | - | 70.931 | <0.0001 | 0.659 | ||
退化 Degraded | 1 | 0.367 | 1.876 | - | 70.169 | <0.0001 | 0.545 | |
2 | 0.448 | 1.911 | 0.929 | 44.850 | <0.0001 | 0.527 | ||
3 | 0.387 | 108.802 | - | 71.025 | <0.0001 | 0.550 | ||
4 | 1.644 | 0.156 | - | 67.907 | <0.0001 | 0.533 | ||
5 | 2.858 | 0.680 | 3.477 | 38.833 | <0.0001 | 0.468 | ||
6 | 4.215 | 2.275 | 3.399 | 38.392 | <0.0001 | 0.463 | ||
7 | 6.695 | 1.886 | - | 60.357 | <0.0001 | 0.487 |
表1 青藏高原高寒草甸、高寒草原和高寒荒漠3类草地的种-面积曲线拟合结果
Table 1 Fitting results of species-area relationships for alpine meadow, alpine steppe and alpine desert in Qinghai-Tibetan Plateau
草地类型 Grassland type | 健康状况 Health status | 方程 Function | a | b | c | F | Pr>F | R2 |
---|---|---|---|---|---|---|---|---|
高寒草甸 Alpine meadow | 健康 Healthy | 1 | 3.441 | 24.946 | - | 651.257 | <0.0001 | 0.875 |
2 | 6.272 | 40.071 | 0.876 | 423.507 | <0.0001 | 0.871 | ||
3 | 3.451 | 1,364.587 | - | 650.831 | <0.0001 | 0.875 | ||
4 | 23.342 | 0.113 | - | 482.725 | <0.0001 | 0.832 | ||
5 | 26.939 | 0.278 | 41.808 | 274.171 | <0.0001 | 0.804 | ||
6 | 1.680 | 0.466 | 41.638 | 259.646 | <0.0001 | 0.793 | ||
7 | 217.283 | 5.588 | - | 271.118 | <0.0001 | 0.708 | ||
退化 Degraded | 1 | 2.769 | 21.515 | - | 1,540.854 | <0.0001 | 0.937 | |
2 | 11.953 | 69.405 | 0.732 | 1,100.360 | <0.0001 | 0.941 | ||
3 | 2.770 | 2,353.238 | - | 1,532.933 | <0.0001 | 0.937 | ||
4 | 20.307 | 0.106 | - | 846.787 | <0.0001 | 0.886 | ||
5 | 21.343 | 0.385 | 34.407 | 380.051 | <0.0001 | 0.832 | ||
6 | 1.478 | 0.529 | 34.447 | 348.447 | <0.0001 | 0.818 | ||
7 | 238.525 | 7.376 | - | 422.309 | <0.0001 | 0.776 | ||
高寒草原 Alpine steppe | 健康 Healthy | 1 | 1.862 | 12.181 | - | 1,427.120 | <0.0001 | 0.947 |
2 | 2.991 | 17.420 | 0.881 | 941.193 | <0.0001 | 0.946 | ||
3 | 1.871 | 658.661 | - | 1,418.386 | <0.0001 | 0.947 | ||
4 | 11.255 | 0.124 | - | 747.963 | <0.0001 | 0.900 | ||
5 | 14.171 | 0.490 | 20.504 | 264.256 | <0.0001 | 0.814 | ||
6 | 2.277 | 1.836 | 19.771 | 240.815 | <0.0001 | 0.797 | ||
7 | 93.693 | 4.730 | - | 393.353 | <0.0001 | 0.813 | ||
退化 Degraded | 1 | 2.015 | 13.200 | - | 353.851 | <0.0001 | 0.870 | |
2 | 3.554 | 18.528 | 0.243 | 226.514 | <0.0001 | 0.865 | ||
3 | 2.023 | 670.840 | - | 352.227 | <0.0001 | 0.870 | ||
4 | 12.174 | 0.124 | - | 266.130 | <0.0001 | 0.829 | ||
5 | 15.700 | 1.006 | 21.505 | 110.500 | <0.0001 | 0.730 | ||
6 | 2.280 | 1.912 | 21.357 | 104.383 | <0.0001 | 0.715 | ||
7 | 104.588 | 4.889 | - | 171.842 | <0.0001 | 0.740 | ||
高寒荒漠 Alpine desert | 健康 Healthy | 1 | 0.911 | 4.119 | - | 113.059 | <0.0001 | 0.776 |
2 | 0.039 | 1.206 | 6.395 | 99.742 | <0.0001 | 0.827 | ||
3 | 1.062 | 29.764 | - | 128.208 | <0.0001 | 0.801 | ||
4 | 3.298 | 0.189 | - | 156.035 | <0.0001 | 0.834 | ||
5 | 8.207 | 0.023 | 10.542 | 71.423 | <0.0001 | 0.764 | ||
6 | 3.284 | 0.112 | 9.667 | 63.087 | <0.0001 | 0.735 | ||
7 | 2.141 | 0.221 | - | 70.931 | <0.0001 | 0.659 | ||
退化 Degraded | 1 | 0.367 | 1.876 | - | 70.169 | <0.0001 | 0.545 | |
2 | 0.448 | 1.911 | 0.929 | 44.850 | <0.0001 | 0.527 | ||
3 | 0.387 | 108.802 | - | 71.025 | <0.0001 | 0.550 | ||
4 | 1.644 | 0.156 | - | 67.907 | <0.0001 | 0.533 | ||
5 | 2.858 | 0.680 | 3.477 | 38.833 | <0.0001 | 0.468 | ||
6 | 4.215 | 2.275 | 3.399 | 38.392 | <0.0001 | 0.463 | ||
7 | 6.695 | 1.886 | - | 60.357 | <0.0001 | 0.487 |
草地类型 Grassland type | 健康状况 Health status | 最优拟合模型 Optimal function | 不同精度下的样地面积 Plot areas under different accuracy (m2) | ||||
---|---|---|---|---|---|---|---|
ρ= 60% | ρ= 70% | ρ= 80% | ρ= 84% | ρ= 90% | |||
高寒草甸 Alpine meadow | 健康 Healthy | S = 24.956 + 3.441* lnA | 5 | 24 | 108 | 197 | 481 |
退化 Degraded | S = (69.405+11.952* lnA)0.732 | 6 | 33 | 210 | 455 | 1477 | |
高寒草原 Alpine steppe | 健康 Healthy | S = 12.181 + 1.862 * lnA | 13 | 61 | 279 | 514 | 1280 |
退化 Degraded | S = 13.200 + 2.015 * lnA | 17 | 81 | 386 | 720 | 1841 | |
高寒荒漠 Alpine desert | 健康 Healthy | S = 3.298*A0.189 | 39 | 88 | 178 | 231 | 332 |
退化 Degraded | S = 0.387*ln(108.802*A+1) | 8 | 23 | 72 | 113 | 220 |
表2 草地植物多样性估测精度和样地面积的关系
Table 2 Relationship between estimation accuracy and plot size for estimating plant diversity in different types of grassland
草地类型 Grassland type | 健康状况 Health status | 最优拟合模型 Optimal function | 不同精度下的样地面积 Plot areas under different accuracy (m2) | ||||
---|---|---|---|---|---|---|---|
ρ= 60% | ρ= 70% | ρ= 80% | ρ= 84% | ρ= 90% | |||
高寒草甸 Alpine meadow | 健康 Healthy | S = 24.956 + 3.441* lnA | 5 | 24 | 108 | 197 | 481 |
退化 Degraded | S = (69.405+11.952* lnA)0.732 | 6 | 33 | 210 | 455 | 1477 | |
高寒草原 Alpine steppe | 健康 Healthy | S = 12.181 + 1.862 * lnA | 13 | 61 | 279 | 514 | 1280 |
退化 Degraded | S = 13.200 + 2.015 * lnA | 17 | 81 | 386 | 720 | 1841 | |
高寒荒漠 Alpine desert | 健康 Healthy | S = 3.298*A0.189 | 39 | 88 | 178 | 231 | 332 |
退化 Degraded | S = 0.387*ln(108.802*A+1) | 8 | 23 | 72 | 113 | 220 |
草地类型 Grassland type | 健康状况 Health status | 平均总物种数 Average numbers of plant species | 占总物种比例 Proportions of total species numbers | 最小样地面积 Minimum area of sampling plots | 最小面积处曲线斜率 Slope at the minimum plot size |
---|---|---|---|---|---|
高寒草甸 Alpine meadow | 健康 Healthy | 51.33 | 80% | 108 | 0.03 |
退化 Degraded | 45.00 | 75% | 82 | 0.03 | |
高寒草原 Alpine steppe | 健康 Healthy | 28.33 | 75% | 130 | 0.01 |
退化 Degraded | 31.50 | 70% | 81 | 0.02 | |
高寒荒漠 Alpine desert | 健康 Healthy | 11.00 | 65% | 60 | 0.02 |
退化 Degraded | 4.33 | 75% | 41 | 0.01 |
表3 各类草地植物多样性估测的最小样地面积
Table 3 Minimum plot for estimating the plant diversity in different types of grassland
草地类型 Grassland type | 健康状况 Health status | 平均总物种数 Average numbers of plant species | 占总物种比例 Proportions of total species numbers | 最小样地面积 Minimum area of sampling plots | 最小面积处曲线斜率 Slope at the minimum plot size |
---|---|---|---|---|---|
高寒草甸 Alpine meadow | 健康 Healthy | 51.33 | 80% | 108 | 0.03 |
退化 Degraded | 45.00 | 75% | 82 | 0.03 | |
高寒草原 Alpine steppe | 健康 Healthy | 28.33 | 75% | 130 | 0.01 |
退化 Degraded | 31.50 | 70% | 81 | 0.02 | |
高寒荒漠 Alpine desert | 健康 Healthy | 11.00 | 65% | 60 | 0.02 |
退化 Degraded | 4.33 | 75% | 41 | 0.01 |
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