Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (1): 105-120.DOI: 10.7522/j.issn.1000-694X.2025.00334
Junwei Chen1,2(
), Xuexiang Chang1,2(
), Quanyan Tian1,2
Received:2025-11-23
Revised:2025-12-23
Online:2026-01-20
Published:2026-03-09
Contact:
Xuexiang Chang
CLC Number:
Junwei Chen, Xuexiang Chang, Quanyan Tian. Response of arboreal forest ecosystem stability to climate change in Qilian Mountain National Park[J]. Journal of Desert Research, 2026, 46(1): 105-120.
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URL: http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2025.00334
| 稳定性等级 | FSI 范围 | CV 范围 |
|---|---|---|
| 极高稳定性 | FSI≥2.0 | CV≤e-2.0≈0.135 |
| 高稳定性 | 1.5≤FSI<2.0 | 0.135<CV≤e-1.5≈0.223 |
| 中等稳定性 | 1.0≤FSI<1.5 | 0.223<CV≤e-1.0≈0.368 |
| 较低稳定性 | 0.5≤FSI<1.0 | 0.368<CV≤e-0.5≈0.607 |
| 极低稳定性 | FSI<0.5 | CV>e-0.5≈0.607 |
Table 1 Classification of ecosystem stability levels in arboreal forests
| 稳定性等级 | FSI 范围 | CV 范围 |
|---|---|---|
| 极高稳定性 | FSI≥2.0 | CV≤e-2.0≈0.135 |
| 高稳定性 | 1.5≤FSI<2.0 | 0.135<CV≤e-1.5≈0.223 |
| 中等稳定性 | 1.0≤FSI<1.5 | 0.223<CV≤e-1.0≈0.368 |
| 较低稳定性 | 0.5≤FSI<1.0 | 0.368<CV≤e-0.5≈0.607 |
| 极低稳定性 | FSI<0.5 | CV>e-0.5≈0.607 |
| 分析单元 | 分析单元 面积/km2 | 乔木林 | 景观多样性 | 空间异质性 | 破碎化 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 面积/km2 | 覆盖率/% | 面积占比/% | 香农多样性指数 | 辛普森多样性指数 | 香农均匀度 | 平均形状指数 | 平均斑块周长/km | 边界密度/(km·km-2) | 乔木林斑块数/个 | 乔木林斑块密度/(个·km-2) | 平均斑块面积/km² | 最大斑块指数/% | 平均最近邻距离/km | 平均连续度指数 | ||||
| 合计 | 9 509.93 | 1 652.25 | 17.37 | 100.00 | — | — | — | — | — | — | — | — | — | — | — | — | ||
| Ⅰ | 1 774.07 | 287.41 | 16.20 | 17.40 | 1.34 | 0.68 | 0.61 | 1.75 | 2.22 | 2.85 | 2 341 | 1.32 | 0.12 | 21.23 | 0.15 | 0.58 | ||
| Ⅱ | 789.82 | 172.01 | 21.78 | 10.41 | 1.37 | 0.69 | 0.66 | 1.81 | 2.28 | 4.07 | 1 453 | 1.84 | 0.12 | 9.79 | 0.13 | 0.57 | ||
| Ⅲ | 178.67 | 52.82 | 29.57 | 3.20 | 1.25 | 0.66 | 0.64 | 1.84 | 3.35 | 4.68 | 256 | 1.43 | 0.20 | 35.03 | 0.13 | 0.59 | ||
| Ⅳ | 1 141.45 | 190.34 | 16.68 | 11.52 | 1.19 | 0.60 | 0.57 | 1.77 | 2.13 | 3.41 | 1 808 | 1.58 | 0.10 | 11.59 | 0.13 | 0.58 | ||
| Ⅴ | 323.31 | 41.79 | 12.92 | 2.53 | 1.26 | 0.64 | 0.60 | 1.80 | 2.06 | 2.77 | 435 | 1.35 | 0.09 | 9.27 | 0.17 | 0.60 | ||
| Ⅵ | 258.03 | 23.68 | 9.18 | 1.43 | 0.90 | 0.44 | 0.43 | 1.64 | 1.51 | 1.73 | 301 | 1.17 | 0.08 | 12.76 | 0.18 | 0.59 | ||
| Ⅶ | 3 626.77 | 795.94 | 21.95 | 48.17 | 1.34 | 0.70 | 0.61 | 1.77 | 2.55 | 3.30 | 4 865 | 1.34 | 0.16 | 15.63 | 0.13 | 0.57 | ||
| Ⅷ | 1 417.81 | 88.27 | 6.23 | 5.34 | 1.22 | 0.65 | 0.56 | 1.69 | 1.39 | 1.55 | 1 651 | 1.16 | 0.05 | 3.53 | 0.17 | 0.57 | ||
Table 2 Landscape pattern metrics of arboreal forests in different analysis units of Qilian Mountain National Park
| 分析单元 | 分析单元 面积/km2 | 乔木林 | 景观多样性 | 空间异质性 | 破碎化 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 面积/km2 | 覆盖率/% | 面积占比/% | 香农多样性指数 | 辛普森多样性指数 | 香农均匀度 | 平均形状指数 | 平均斑块周长/km | 边界密度/(km·km-2) | 乔木林斑块数/个 | 乔木林斑块密度/(个·km-2) | 平均斑块面积/km² | 最大斑块指数/% | 平均最近邻距离/km | 平均连续度指数 | ||||
| 合计 | 9 509.93 | 1 652.25 | 17.37 | 100.00 | — | — | — | — | — | — | — | — | — | — | — | — | ||
| Ⅰ | 1 774.07 | 287.41 | 16.20 | 17.40 | 1.34 | 0.68 | 0.61 | 1.75 | 2.22 | 2.85 | 2 341 | 1.32 | 0.12 | 21.23 | 0.15 | 0.58 | ||
| Ⅱ | 789.82 | 172.01 | 21.78 | 10.41 | 1.37 | 0.69 | 0.66 | 1.81 | 2.28 | 4.07 | 1 453 | 1.84 | 0.12 | 9.79 | 0.13 | 0.57 | ||
| Ⅲ | 178.67 | 52.82 | 29.57 | 3.20 | 1.25 | 0.66 | 0.64 | 1.84 | 3.35 | 4.68 | 256 | 1.43 | 0.20 | 35.03 | 0.13 | 0.59 | ||
| Ⅳ | 1 141.45 | 190.34 | 16.68 | 11.52 | 1.19 | 0.60 | 0.57 | 1.77 | 2.13 | 3.41 | 1 808 | 1.58 | 0.10 | 11.59 | 0.13 | 0.58 | ||
| Ⅴ | 323.31 | 41.79 | 12.92 | 2.53 | 1.26 | 0.64 | 0.60 | 1.80 | 2.06 | 2.77 | 435 | 1.35 | 0.09 | 9.27 | 0.17 | 0.60 | ||
| Ⅵ | 258.03 | 23.68 | 9.18 | 1.43 | 0.90 | 0.44 | 0.43 | 1.64 | 1.51 | 1.73 | 301 | 1.17 | 0.08 | 12.76 | 0.18 | 0.59 | ||
| Ⅶ | 3 626.77 | 795.94 | 21.95 | 48.17 | 1.34 | 0.70 | 0.61 | 1.77 | 2.55 | 3.30 | 4 865 | 1.34 | 0.16 | 15.63 | 0.13 | 0.57 | ||
| Ⅷ | 1 417.81 | 88.27 | 6.23 | 5.34 | 1.22 | 0.65 | 0.56 | 1.69 | 1.39 | 1.55 | 1 651 | 1.16 | 0.05 | 3.53 | 0.17 | 0.57 | ||
| 分析单元 | 气温变化速率/(℃·a⁻¹) | 气温标准差/℃ | 降水变化速率/(mm·a⁻¹) | 降水标准差/mm |
|---|---|---|---|---|
| Ⅰ | 0.016 | 0.40 | 6.88 | 116.46 |
| Ⅱ | 0.033 | 0.47 | 9.76 | 187.85 |
| Ⅲ | 0.036 | 0.51 | 7.70 | 145.90 |
| Ⅳ | 0.035 | 0.50 | 7.48 | 131.52 |
| Ⅴ | 0.032 | 0.47 | 2.91 | 76.45 |
| Ⅵ | 0.028 | 0.42 | 6.47 | 96.07 |
| Ⅶ | 0.016 | 0.35 | 5.53 | 103.75 |
| Ⅷ | 0.015 | 0.42 | 8.62 | 152.68 |
| 乔木林区 | 0.024 | 0.42 | 7.32 | 135.68 |
| 全区 | 0.0036 | 0.10 | 1.43 | 27.67 |
Table 3 Climatic trends in Qilian Mountain National Park
| 分析单元 | 气温变化速率/(℃·a⁻¹) | 气温标准差/℃ | 降水变化速率/(mm·a⁻¹) | 降水标准差/mm |
|---|---|---|---|---|
| Ⅰ | 0.016 | 0.40 | 6.88 | 116.46 |
| Ⅱ | 0.033 | 0.47 | 9.76 | 187.85 |
| Ⅲ | 0.036 | 0.51 | 7.70 | 145.90 |
| Ⅳ | 0.035 | 0.50 | 7.48 | 131.52 |
| Ⅴ | 0.032 | 0.47 | 2.91 | 76.45 |
| Ⅵ | 0.028 | 0.42 | 6.47 | 96.07 |
| Ⅶ | 0.016 | 0.35 | 5.53 | 103.75 |
| Ⅷ | 0.015 | 0.42 | 8.62 | 152.68 |
| 乔木林区 | 0.024 | 0.42 | 7.32 | 135.68 |
| 全区 | 0.0036 | 0.10 | 1.43 | 27.67 |
| 分析单元 | 极高稳定性 | 高稳定性 | 中等稳定性 | 较低稳定性 | 极低稳定性 | 合计 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | ||||||
| Ⅰ | 278.90 | 97.04 | 8.16 | 2.84 | 0.26 | 0.09 | 0.09 | 0.03 | 0.00 | 0.00 | 287.41 | 17.40 | |||||
| Ⅱ | 157.89 | 91.79 | 14.02 | 8.15 | 0.10 | 0.06 | 0.00 | 0.0 | 0.00 | 0.00 | 172.01 | 10.41 | |||||
| Ⅲ | 50.34 | 95.31 | 2.47 | 4.67 | 0.01 | 0.02 | 0.00 | 0.0 | 0.00 | 0.00 | 52.82 | 3.20 | |||||
| Ⅳ | 168.11 | 88.32 | 22.10 | 11.61 | 0.11 | 0.06 | 0.00 | 0.0 | 0.00 | 0.00 | 190.34 | 11.52 | |||||
| Ⅴ | 35.51 | 84.97 | 6.24 | 14.93 | 0.04 | 0.10 | 0.00 | 0.0 | 0.00 | 0.00 | 41.79 | 2.53 | |||||
| Ⅵ | 14.29 | 60.36 | 8.85 | 37.37 | 0.54 | 2.27 | 0.00 | 0.0 | 0.00 | 0.00 | 23.68 | 1.43 | |||||
| Ⅶ | 529.46 | 66.52 | 253.83 | 31.89 | 12.50 | 1.57 | 0.16 | 0.02 | 0.00 | 0.00 | 795.94 | 48.17 | |||||
| Ⅷ | 34.01 | 38.53 | 42.89 | 48.59 | 11.34 | 12.85 | 0.03 | 0.03 | 0.00 | 0.00 | 88.27 | 5.34 | |||||
| 全区 | 1 276.36 | 77.25 | 347.14 | 21.01 | 28.58 | 1.73 | 0.33 | 0.02 | 0.00 | 0.00 | 1 652.25 | 100.00 | |||||
Table 4 Distribution of ecosystem stability classes in arboreal forests of Qilian Mountain National Park
| 分析单元 | 极高稳定性 | 高稳定性 | 中等稳定性 | 较低稳定性 | 极低稳定性 | 合计 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | 面积/km2 | 占比/% | ||||||
| Ⅰ | 278.90 | 97.04 | 8.16 | 2.84 | 0.26 | 0.09 | 0.09 | 0.03 | 0.00 | 0.00 | 287.41 | 17.40 | |||||
| Ⅱ | 157.89 | 91.79 | 14.02 | 8.15 | 0.10 | 0.06 | 0.00 | 0.0 | 0.00 | 0.00 | 172.01 | 10.41 | |||||
| Ⅲ | 50.34 | 95.31 | 2.47 | 4.67 | 0.01 | 0.02 | 0.00 | 0.0 | 0.00 | 0.00 | 52.82 | 3.20 | |||||
| Ⅳ | 168.11 | 88.32 | 22.10 | 11.61 | 0.11 | 0.06 | 0.00 | 0.0 | 0.00 | 0.00 | 190.34 | 11.52 | |||||
| Ⅴ | 35.51 | 84.97 | 6.24 | 14.93 | 0.04 | 0.10 | 0.00 | 0.0 | 0.00 | 0.00 | 41.79 | 2.53 | |||||
| Ⅵ | 14.29 | 60.36 | 8.85 | 37.37 | 0.54 | 2.27 | 0.00 | 0.0 | 0.00 | 0.00 | 23.68 | 1.43 | |||||
| Ⅶ | 529.46 | 66.52 | 253.83 | 31.89 | 12.50 | 1.57 | 0.16 | 0.02 | 0.00 | 0.00 | 795.94 | 48.17 | |||||
| Ⅷ | 34.01 | 38.53 | 42.89 | 48.59 | 11.34 | 12.85 | 0.03 | 0.03 | 0.00 | 0.00 | 88.27 | 5.34 | |||||
| 全区 | 1 276.36 | 77.25 | 347.14 | 21.01 | 28.58 | 1.73 | 0.33 | 0.02 | 0.00 | 0.00 | 1 652.25 | 100.00 | |||||
| 分析单元 | 气温 | 降水 | 气候弹性指数 | R² | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 回归系数 | FSI变化量/℃ | R² | 回归系数 | FSI变化量 /1000 mm | R² | 系数 | FSI变化量/0.10 CE | R² | ||||
| Ⅰ | 0.12 | 0.30 | 0.11 | -0.03 | -0.26 | 0.10 | -0.31 | -1.25 | 0.39 | 0.52 | ||
| Ⅱ | 0.11 | 0.23 | 0.10 | 0.04 | 0.21 | 0.09 | -0.27 | -1.15 | 0.33 | 0.49 | ||
| Ⅲ | 0.12 | 0.24 | 0.13 | 0.04 | 0.27 | 0.07 | -0.31 | -1.00 | 0.43 | 0.56 | ||
| Ⅳ | 0.09 | 0.18 | 0.09 | 0.02 | 0.15 | 0.07 | -0.32 | -1.10 | 0.44 | 0.53 | ||
| Ⅴ | 0.07 | 0.15 | 0.09 | 0.02 | 0.26 | 0.04 | -0.28 | -1.35 | 0.43 | 0.50 | ||
| Ⅵ | 0.07 | 0.17 | 0.08 | 0.00 | 0.00 | 0.07 | -0.31 | -1.15 | 0.38 | 0.46 | ||
| Ⅶ | 0.03 | 0.09 | 0.05 | 0.07 | 0.68 | 0.08 | -0.34 | -1.75 | 0.47 | 0.54 | ||
| Ⅷ | 0.04 | 0.10 | 0.05 | 0.03 | 0.20 | 0.05 | -0.25 | -1.40 | 0.33 | 0.41 | ||
Table 5 Regression results of climatic variables and climate elasticity on arboreal forest ecosystems stability
| 分析单元 | 气温 | 降水 | 气候弹性指数 | R² | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 回归系数 | FSI变化量/℃ | R² | 回归系数 | FSI变化量 /1000 mm | R² | 系数 | FSI变化量/0.10 CE | R² | ||||
| Ⅰ | 0.12 | 0.30 | 0.11 | -0.03 | -0.26 | 0.10 | -0.31 | -1.25 | 0.39 | 0.52 | ||
| Ⅱ | 0.11 | 0.23 | 0.10 | 0.04 | 0.21 | 0.09 | -0.27 | -1.15 | 0.33 | 0.49 | ||
| Ⅲ | 0.12 | 0.24 | 0.13 | 0.04 | 0.27 | 0.07 | -0.31 | -1.00 | 0.43 | 0.56 | ||
| Ⅳ | 0.09 | 0.18 | 0.09 | 0.02 | 0.15 | 0.07 | -0.32 | -1.10 | 0.44 | 0.53 | ||
| Ⅴ | 0.07 | 0.15 | 0.09 | 0.02 | 0.26 | 0.04 | -0.28 | -1.35 | 0.43 | 0.50 | ||
| Ⅵ | 0.07 | 0.17 | 0.08 | 0.00 | 0.00 | 0.07 | -0.31 | -1.15 | 0.38 | 0.46 | ||
| Ⅶ | 0.03 | 0.09 | 0.05 | 0.07 | 0.68 | 0.08 | -0.34 | -1.75 | 0.47 | 0.54 | ||
| Ⅷ | 0.04 | 0.10 | 0.05 | 0.03 | 0.20 | 0.05 | -0.25 | -1.40 | 0.33 | 0.41 | ||
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