草业学报 ›› 2023, Vol. 32 ›› Issue (5): 13-26.DOI: 10.11686/cyxb2022232
收稿日期:
2022-05-25
修回日期:
2022-07-06
出版日期:
2023-05-20
发布日期:
2023-03-20
通讯作者:
李广
作者简介:
E-mail: lig@gsau.edu.cn基金资助:
Yun-liang LIANG(), Jie LI, Yan-hua LU, Guang LI()
Received:
2022-05-25
Revised:
2022-07-06
Online:
2023-05-20
Published:
2023-03-20
Contact:
Guang LI
摘要:
为理清土地利用变化对生态系统服务价值的影响效应,基于甘肃省农牧交错带2000、2010、2020年3个时期的土地利用/覆盖变化(LUCC)数据,运用改进的当量因子定量评估甘肃省农牧交错带生态系统服务价值,结合空间自相关分析法探究各乡镇级单位生态系统服务价值变化的时空格局演变特征。结果显示:1)2000-2020年甘肃省农牧交错带土地利用类型主要以草地、耕地、林地为主,其中,草地、林地和建设用地面积增加,而耕地和湿地面积减少。2)2000-2020年甘肃省农牧交错带生态系统服务总价值增加了11.2358×108元,调节服务在各时期占主导地位,水文调节和气候调节生态系统服务价值较大,草地和林地在维持水文调节和气候调节服务价值方面作用重大,是维持甘肃省农牧交错带生态系统服务总价值的关键土地利用类型。3)地均生态系统服务价值(ESV)呈较强的空间正相关性,在空间上整体表现为显著的集聚分布格局,高值集聚区和低值集聚区的空间演变保持平稳。研究结果可为甘肃省农牧交错带制定科学合理的生态保护政策、建立生态保护修复的长效机制提供科学依据。
梁赟亮, 李杰, 陆燕花, 李广. 基于LUCC的甘肃省农牧交错带生态系统服务价值评估及时空演变特征研究[J]. 草业学报, 2023, 32(5): 13-26.
Yun-liang LIANG, Jie LI, Yan-hua LU, Guang LI. Ecosystem service value evaluation and temporal-spatial evolution characteristics in an agro-pastoral ecotone of Gansu Province based on LUCC[J]. Acta Prataculturae Sinica, 2023, 32(5): 13-26.
生态系统分类 Ecosystem classification | 供给服务 Provisioning services | 调节服务 Regulating services | 支持服务 Habitat services | 文化服务Cultural services | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
食物生产 Food production | 原料生产 Raw material production | 水资源 供给 Water supply | 气体调节 Gas regulation | 气候调节 Climate regulation | 净化环境 Purifying the environment | 水文调节 Hydrologic regulation | 土壤保持 Soil conservation | 维持养分循环Maintenance of soil fertility | 维持生物多样性Biodiversity maintenance | 美学景观 Aesthetic landscape | |
耕地Cultivated land | 0.85 | 0.40 | 0.02 | 0.67 | 0.36 | 0.10 | 0.27 | 1.03 | 0.12 | 0.13 | 0.06 |
林地Woodland | 0.29 | 0.66 | 0.34 | 2.17 | 6.50 | 1.93 | 4.74 | 2.65 | 0.20 | 2.41 | 1.06 |
草地Grassland | 0.10 | 0.14 | 0.08 | 0.51 | 1.34 | 0.44 | 0.98 | 0.62 | 0.05 | 0.56 | 0.25 |
水域Waters | 0.50 | 0.23 | 8.29 | 0.77 | 2.29 | 5.55 | 102.24 | 0.93 | 0.07 | 2.55 | 1.89 |
未利用地Unused land | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.10 | 0.03 | 0.02 | 0.00 | 0.02 | 0.01 |
湿地Wetlands | 0.51 | 0.50 | 2.59 | 1.90 | 3.60 | 3.60 | 24.23 | 2.31 | 0.18 | 7.87 | 4.73 |
表1 甘肃省农牧交错带生态系统服务价值当量表
Table 1 Ecological service value equivalent scale of the interlaced zone of agro-pastoral ecotone of Gansu Province
生态系统分类 Ecosystem classification | 供给服务 Provisioning services | 调节服务 Regulating services | 支持服务 Habitat services | 文化服务Cultural services | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
食物生产 Food production | 原料生产 Raw material production | 水资源 供给 Water supply | 气体调节 Gas regulation | 气候调节 Climate regulation | 净化环境 Purifying the environment | 水文调节 Hydrologic regulation | 土壤保持 Soil conservation | 维持养分循环Maintenance of soil fertility | 维持生物多样性Biodiversity maintenance | 美学景观 Aesthetic landscape | |
耕地Cultivated land | 0.85 | 0.40 | 0.02 | 0.67 | 0.36 | 0.10 | 0.27 | 1.03 | 0.12 | 0.13 | 0.06 |
林地Woodland | 0.29 | 0.66 | 0.34 | 2.17 | 6.50 | 1.93 | 4.74 | 2.65 | 0.20 | 2.41 | 1.06 |
草地Grassland | 0.10 | 0.14 | 0.08 | 0.51 | 1.34 | 0.44 | 0.98 | 0.62 | 0.05 | 0.56 | 0.25 |
水域Waters | 0.50 | 0.23 | 8.29 | 0.77 | 2.29 | 5.55 | 102.24 | 0.93 | 0.07 | 2.55 | 1.89 |
未利用地Unused land | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.10 | 0.03 | 0.02 | 0.00 | 0.02 | 0.01 |
湿地Wetlands | 0.51 | 0.50 | 2.59 | 1.90 | 3.60 | 3.60 | 24.23 | 2.31 | 0.18 | 7.87 | 4.73 |
一级类型 Primary classi?cation | 二级类型 Secondary classi?cation | 生态系统服务价值系数Ecosystem service value coefficient (yuan·km-2·a-1) | |||||
---|---|---|---|---|---|---|---|
耕地 Cultivated land | 草地 Grassland | 林地 Woodland | 湿地 Wetlands | 水域 Waters | 未利用地 Unused land | ||
供给服务 Provisioning services | 食物生产Food production | 726.41 | 85.46 | 247.83 | 435.85 | 427.30 | 0.00 |
原材料生产Raw material production | 341.84 | 119.64 | 564.04 | 427.30 | 196.56 | 0.00 | |
水资源供给Water supply | 17.09 | 68.37 | 290.56 | 2213.41 | 7084.63 | 0.00 | |
调节服务 Regulating services | 气体调节Gas regulation | 572.58 | 435.85 | 1854.48 | 1623.74 | 658.04 | 17.09 |
气候调节Climate regulation | 307.66 | 1145.16 | 5554.90 | 3076.56 | 1957.03 | 0.00 | |
净化环境Purifying the environment | 85.46 | 376.02 | 1649.38 | 3076.56 | 4743.03 | 85.46 | |
水文调节Hydrologic regulation | 230.74 | 837.51 | 4050.80 | 20706.96 | 87374.30 | 25.64 | |
支持服务Habitat services | 土壤保持Soil conservation | 880.24 | 529.85 | 2264.69 | 1974.13 | 794.78 | 17.09 |
维持养分循环Maintenance of soil fertility | 102.55 | 42.73 | 170.92 | 153.83 | 59.82 | 0.00 | |
维持生物多样性Biodiversity maintenance | 111.10 | 478.58 | 2059.59 | 6725.70 | 2179.23 | 17.09 | |
文化服务Cultural services | 美学景观Aesthetic landscape | 51.28 | 213.65 | 905.88 | 4042.26 | 1615.19 | 8.55 |
表2 甘肃省农牧交错带生态系统服务价值系数
Table 2 The value coefficient of ecosystem service in the agro-pastoral ecotone of Gansu Province
一级类型 Primary classi?cation | 二级类型 Secondary classi?cation | 生态系统服务价值系数Ecosystem service value coefficient (yuan·km-2·a-1) | |||||
---|---|---|---|---|---|---|---|
耕地 Cultivated land | 草地 Grassland | 林地 Woodland | 湿地 Wetlands | 水域 Waters | 未利用地 Unused land | ||
供给服务 Provisioning services | 食物生产Food production | 726.41 | 85.46 | 247.83 | 435.85 | 427.30 | 0.00 |
原材料生产Raw material production | 341.84 | 119.64 | 564.04 | 427.30 | 196.56 | 0.00 | |
水资源供给Water supply | 17.09 | 68.37 | 290.56 | 2213.41 | 7084.63 | 0.00 | |
调节服务 Regulating services | 气体调节Gas regulation | 572.58 | 435.85 | 1854.48 | 1623.74 | 658.04 | 17.09 |
气候调节Climate regulation | 307.66 | 1145.16 | 5554.90 | 3076.56 | 1957.03 | 0.00 | |
净化环境Purifying the environment | 85.46 | 376.02 | 1649.38 | 3076.56 | 4743.03 | 85.46 | |
水文调节Hydrologic regulation | 230.74 | 837.51 | 4050.80 | 20706.96 | 87374.30 | 25.64 | |
支持服务Habitat services | 土壤保持Soil conservation | 880.24 | 529.85 | 2264.69 | 1974.13 | 794.78 | 17.09 |
维持养分循环Maintenance of soil fertility | 102.55 | 42.73 | 170.92 | 153.83 | 59.82 | 0.00 | |
维持生物多样性Biodiversity maintenance | 111.10 | 478.58 | 2059.59 | 6725.70 | 2179.23 | 17.09 | |
文化服务Cultural services | 美学景观Aesthetic landscape | 51.28 | 213.65 | 905.88 | 4042.26 | 1615.19 | 8.55 |
年份 Year | 指标 Indicators | 土地利用类型Land use type | ||||||
---|---|---|---|---|---|---|---|---|
耕地 Cultivated land | 草地 Grassland | 林地 Woodland | 湿地 Wetlands | 水域 Waters | 建设用地 Construction land | 未利用地 Unused land | ||
2000 | 面积Area (km2) | 24935.53 | 54834.25 | 15633.16 | 668.80 | 379.34 | 1227.24 | 1583.21 |
比例Proportion (%) | 25.22 | 55.45 | 15.81 | 0.68 | 0.38 | 1.24 | 1.60 | |
2010 | 面积Area (km2) | 23969.76 | 54763.49 | 16221.74 | 719.17 | 394.71 | 1506.17 | 1695.03 |
比例Proportion (%) | 24.15 | 55.17 | 16.34 | 0.72 | 0.40 | 1.52 | 1.71 | |
2020 | 面积Area (km2) | 23396.53 | 54944.46 | 16187.57 | 668.40 | 427.59 | 1958.38 | 1638.79 |
比例Proportion (%) | 23.58 | 55.38 | 16.31 | 0.67 | 0.43 | 1.97 | 1.65 | |
2000-2010 | 变化量Amount of change (km2) | -965.77 | -70.76 | 588.58 | 50.37 | 15.37 | 278.93 | 111.82 |
动态度Dynamic degree (%) | -0.39 | -0.01 | 0.38 | 0.75 | 0.41 | 2.27 | 0.71 | |
2010-2020 | 变化量Amount of change (km2) | -573.23 | 180.97 | -34.17 | -50.77 | 32.88 | 452.21 | -56.24 |
动态度Dynamic degree (%) | -0.24 | 0.03 | -0.02 | -0.71 | 0.83 | 3.00 | -0.33 | |
2000-2020 | 变化量Amount of change (km2) | -1539.00 | 110.21 | 554.41 | -0.40 | 48.25 | 731.14 | 55.58 |
动态度Dynamic degree (%) | -0.62 | 0.02 | 0.35 | -0.01 | 1.27 | 5.96 | 0.35 |
表3 2000-2020年土地利用类型变化
Table 3 Land use type change from 2000 to 2020
年份 Year | 指标 Indicators | 土地利用类型Land use type | ||||||
---|---|---|---|---|---|---|---|---|
耕地 Cultivated land | 草地 Grassland | 林地 Woodland | 湿地 Wetlands | 水域 Waters | 建设用地 Construction land | 未利用地 Unused land | ||
2000 | 面积Area (km2) | 24935.53 | 54834.25 | 15633.16 | 668.80 | 379.34 | 1227.24 | 1583.21 |
比例Proportion (%) | 25.22 | 55.45 | 15.81 | 0.68 | 0.38 | 1.24 | 1.60 | |
2010 | 面积Area (km2) | 23969.76 | 54763.49 | 16221.74 | 719.17 | 394.71 | 1506.17 | 1695.03 |
比例Proportion (%) | 24.15 | 55.17 | 16.34 | 0.72 | 0.40 | 1.52 | 1.71 | |
2020 | 面积Area (km2) | 23396.53 | 54944.46 | 16187.57 | 668.40 | 427.59 | 1958.38 | 1638.79 |
比例Proportion (%) | 23.58 | 55.38 | 16.31 | 0.67 | 0.43 | 1.97 | 1.65 | |
2000-2010 | 变化量Amount of change (km2) | -965.77 | -70.76 | 588.58 | 50.37 | 15.37 | 278.93 | 111.82 |
动态度Dynamic degree (%) | -0.39 | -0.01 | 0.38 | 0.75 | 0.41 | 2.27 | 0.71 | |
2010-2020 | 变化量Amount of change (km2) | -573.23 | 180.97 | -34.17 | -50.77 | 32.88 | 452.21 | -56.24 |
动态度Dynamic degree (%) | -0.24 | 0.03 | -0.02 | -0.71 | 0.83 | 3.00 | -0.33 | |
2000-2020 | 变化量Amount of change (km2) | -1539.00 | 110.21 | 554.41 | -0.40 | 48.25 | 731.14 | 55.58 |
动态度Dynamic degree (%) | -0.62 | 0.02 | 0.35 | -0.01 | 1.27 | 5.96 | 0.35 |
年份 Year | 指标 Indicators | 土地利用类型Land use type | 合计 Total | ||||||
---|---|---|---|---|---|---|---|---|---|
耕地 Cultivated land | 草地 Grassland | 林地 Woodland | 湿地 Wetlands | 水域 Waters | 未利用地 Unused land | 建设用地 Construction land | |||
2000 | 生态系统服务价值ESV (×108 yuan) | 85.4541 | 237.5968 | 306.6132 | 29.7322 | 40.6235 | 0.2707 | 0 | 700.2905 |
2010 | 生态系统服务价值ESV (×108 yuan) | 82.1444 | 237.2902 | 318.1570 | 31.9714 | 42.2695 | 0.2899 | 0 | 712.1223 |
2020 | 生态系统服务价值ESV (×108 yuan) | 80.1799 | 238.0743 | 317.4868 | 29.7144 | 45.7906 | 0.2802 | 0 | 711.5263 |
2000-2010 | 变化量Amount of change (×108 yuan) | -3.3097 | -0.3066 | 11.5438 | 2.2392 | 1.6460 | 0.0191 | 0 | 11.8319 |
变化率Rate of change (%) | -3.8731 | -0.1290 | 3.7649 | 7.5314 | 4.0518 | 7.0628 | 0 | 1.6896 | |
2010-2020 | 变化量Amount of change (×108 yuan) | -1.9645 | 0.7841 | -0.6702 | -2.2570 | 3.5211 | -0.0096 | 0 | -0.5960 |
变化率Rate of change (%) | -2.3915 | 0.3305 | -0.2106 | -7.0595 | 8.3302 | -3.3179 | 0 | -0.0837 | |
2000-2020 | 变化量Amount of change (×108 yuan) | -5.2742 | 0.4775 | 10.8736 | -0.0178 | 5.1671 | 0.0095 | 0 | 11.2358 |
变化率Rate of change (%) | -6.1719 | 0.2010 | 3.5464 | -0.0598 | 12.7195 | 3.5105 | 0 | 1.6045 |
表4 2000-2020年各类型土地生态系统服务总价值及变化
Table 4 Total value of ecosystem service by land type and changes from 2000 to 2020
年份 Year | 指标 Indicators | 土地利用类型Land use type | 合计 Total | ||||||
---|---|---|---|---|---|---|---|---|---|
耕地 Cultivated land | 草地 Grassland | 林地 Woodland | 湿地 Wetlands | 水域 Waters | 未利用地 Unused land | 建设用地 Construction land | |||
2000 | 生态系统服务价值ESV (×108 yuan) | 85.4541 | 237.5968 | 306.6132 | 29.7322 | 40.6235 | 0.2707 | 0 | 700.2905 |
2010 | 生态系统服务价值ESV (×108 yuan) | 82.1444 | 237.2902 | 318.1570 | 31.9714 | 42.2695 | 0.2899 | 0 | 712.1223 |
2020 | 生态系统服务价值ESV (×108 yuan) | 80.1799 | 238.0743 | 317.4868 | 29.7144 | 45.7906 | 0.2802 | 0 | 711.5263 |
2000-2010 | 变化量Amount of change (×108 yuan) | -3.3097 | -0.3066 | 11.5438 | 2.2392 | 1.6460 | 0.0191 | 0 | 11.8319 |
变化率Rate of change (%) | -3.8731 | -0.1290 | 3.7649 | 7.5314 | 4.0518 | 7.0628 | 0 | 1.6896 | |
2010-2020 | 变化量Amount of change (×108 yuan) | -1.9645 | 0.7841 | -0.6702 | -2.2570 | 3.5211 | -0.0096 | 0 | -0.5960 |
变化率Rate of change (%) | -2.3915 | 0.3305 | -0.2106 | -7.0595 | 8.3302 | -3.3179 | 0 | -0.0837 | |
2000-2020 | 变化量Amount of change (×108 yuan) | -5.2742 | 0.4775 | 10.8736 | -0.0178 | 5.1671 | 0.0095 | 0 | 11.2358 |
变化率Rate of change (%) | -6.1719 | 0.2010 | 3.5464 | -0.0598 | 12.7195 | 3.5105 | 0 | 1.6045 |
年份 Year | 指标 Indicators | 生态系统服务类型Ecosystem service types | |||||
---|---|---|---|---|---|---|---|
食物生产 Food production | 原料生产 Raw material production | 水资源供给 Water supply | 气体调节 Gas regulation | 气候调节 Climate regulation | 净化环境 Purifying the environment | ||
2000 | 生态系统服务功能价值ESVf (×108 yuan) | 27.0947 | 24.2855 | 12.8696 | 68.5423 | 160.1078 | 52.5080 |
2010 | 生态系统服务功能价值ESVf (×108 yuan) | 26.9875 | 24.7199 | 15.3996 | 70.7279 | 166.1867 | 56.6099 |
2020 | 生态系统服务功能价值ESVf (×108 yuan) | 26.5678 | 24.5087 | 15.5007 | 70.3444 | 165.9188 | 56.5510 |
2000-2010 | 变化量Amount of change (×108 yuan) | -0.1072 | 0.4344 | 2.5300 | 2.1856 | 6.0789 | 4.1020 |
变化率Rate of change (%) | -0.3956 | 1.7887 | 19.6587 | 3.1887 | 3.7967 | 7.8121 | |
2010-2020 | 变化量Amount of change (×108 yuan) | -0.4197 | -0.2111 | 0.1011 | -0.3836 | -0.2679 | -0.0589 |
变化率Rate of change (%) | -1.5553 | -0.8541 | 0.6566 | -0.5423 | -0.1612 | -0.1041 | |
2000-2020 | 变化量Amount of change (×108 yuan) | -0.5269 | 0.2233 | 2.6311 | 1.8020 | 5.8110 | 4.0431 |
变化率Rate of change (%) | -1.9448 | 0.9193 | 20.4444 | 2.6291 | 3.6294 | 7.6999 | |
年份 Year | 指标 Indicators | 生态系统服务类型Ecosystem service types | |||||
水文调节 Hydrologic regulation | 土壤保持 Soil conservation | 维持养分循环 Maintenance of soil fertility | 维持生物多样性 Biodiversity maintenance | 美学景观 Aesthetic landscape | 总计 Total | ||
2000 | 服务功能价值ESVf (×108 yuan) | 162.0756 | 88.0632 | 7.7253 | 66.5896 | 30.5001 | 700.3616 |
2010 | 服务功能价值ESVf (×108 yuan) | 186.7735 | 90.5489 | 7.8824 | 74.5988 | 35.1428 | 755.5778 |
2020 | 服务功能价值ESVf (×108 yuan) | 188.3612 | 89.9771 | 7.8186 | 74.2439 | 34.9466 | 754.7387 |
2000-2010 | 变化量Amount of change (×108 yuan) | 24.6979 | 2.4857 | 0.1571 | 8.0092 | 4.6427 | 55.2162 |
变化率Rate of change (%) | 15.2385 | 2.8226 | 2.0335 | 12.0277 | 15.2220 | 7.8840 | |
2010-2020 | 变化量Amount of change (×108 yuan) | 1.5876 | -0.5718 | -0.0638 | -0.3549 | -0.1962 | -0.8391 |
变化率Rate of change (%) | 0.8500 | -0.6314 | -0.8093 | -0.4758 | -0.5583 | -0.1111 | |
2000-2020 | 变化量Amount of change (×108 yuan) | 26.2856 | 1.9139 | 0.0933 | 7.6543 | 4.4465 | 54.3771 |
变化率Rate of change (%) | 16.2181 | 2.1733 | 1.2077 | 11.4947 | 14.5787 | 7.7642 |
表5 2000-2020年单项生态系统服务功能价值及变化
Table 5 Value of individual ecosystem service functions and changes from 2000 to 2020
年份 Year | 指标 Indicators | 生态系统服务类型Ecosystem service types | |||||
---|---|---|---|---|---|---|---|
食物生产 Food production | 原料生产 Raw material production | 水资源供给 Water supply | 气体调节 Gas regulation | 气候调节 Climate regulation | 净化环境 Purifying the environment | ||
2000 | 生态系统服务功能价值ESVf (×108 yuan) | 27.0947 | 24.2855 | 12.8696 | 68.5423 | 160.1078 | 52.5080 |
2010 | 生态系统服务功能价值ESVf (×108 yuan) | 26.9875 | 24.7199 | 15.3996 | 70.7279 | 166.1867 | 56.6099 |
2020 | 生态系统服务功能价值ESVf (×108 yuan) | 26.5678 | 24.5087 | 15.5007 | 70.3444 | 165.9188 | 56.5510 |
2000-2010 | 变化量Amount of change (×108 yuan) | -0.1072 | 0.4344 | 2.5300 | 2.1856 | 6.0789 | 4.1020 |
变化率Rate of change (%) | -0.3956 | 1.7887 | 19.6587 | 3.1887 | 3.7967 | 7.8121 | |
2010-2020 | 变化量Amount of change (×108 yuan) | -0.4197 | -0.2111 | 0.1011 | -0.3836 | -0.2679 | -0.0589 |
变化率Rate of change (%) | -1.5553 | -0.8541 | 0.6566 | -0.5423 | -0.1612 | -0.1041 | |
2000-2020 | 变化量Amount of change (×108 yuan) | -0.5269 | 0.2233 | 2.6311 | 1.8020 | 5.8110 | 4.0431 |
变化率Rate of change (%) | -1.9448 | 0.9193 | 20.4444 | 2.6291 | 3.6294 | 7.6999 | |
年份 Year | 指标 Indicators | 生态系统服务类型Ecosystem service types | |||||
水文调节 Hydrologic regulation | 土壤保持 Soil conservation | 维持养分循环 Maintenance of soil fertility | 维持生物多样性 Biodiversity maintenance | 美学景观 Aesthetic landscape | 总计 Total | ||
2000 | 服务功能价值ESVf (×108 yuan) | 162.0756 | 88.0632 | 7.7253 | 66.5896 | 30.5001 | 700.3616 |
2010 | 服务功能价值ESVf (×108 yuan) | 186.7735 | 90.5489 | 7.8824 | 74.5988 | 35.1428 | 755.5778 |
2020 | 服务功能价值ESVf (×108 yuan) | 188.3612 | 89.9771 | 7.8186 | 74.2439 | 34.9466 | 754.7387 |
2000-2010 | 变化量Amount of change (×108 yuan) | 24.6979 | 2.4857 | 0.1571 | 8.0092 | 4.6427 | 55.2162 |
变化率Rate of change (%) | 15.2385 | 2.8226 | 2.0335 | 12.0277 | 15.2220 | 7.8840 | |
2010-2020 | 变化量Amount of change (×108 yuan) | 1.5876 | -0.5718 | -0.0638 | -0.3549 | -0.1962 | -0.8391 |
变化率Rate of change (%) | 0.8500 | -0.6314 | -0.8093 | -0.4758 | -0.5583 | -0.1111 | |
2000-2020 | 变化量Amount of change (×108 yuan) | 26.2856 | 1.9139 | 0.0933 | 7.6543 | 4.4465 | 54.3771 |
变化率Rate of change (%) | 16.2181 | 2.1733 | 1.2077 | 11.4947 | 14.5787 | 7.7642 |
指标 Indicators | 地均生态系统服务价值 Ground-average ESV | ||
---|---|---|---|
2000 | 2010 | 2020 | |
全局Moran’s I Global Moran’s I | 0.1773 | 0.1253 | 0.1212 |
期望值Expectations | -0.0021 | -0.0021 | -0.0021 |
Z得分Z-score | 12.7709 | 10.5518 | 9.9270 |
P检验P-test | 0.0000 | 0.0000 | 0.0000 |
表6 相关指标的全局空间自相关
Table 6 Global spatial autocorrelation of relevant indicators
指标 Indicators | 地均生态系统服务价值 Ground-average ESV | ||
---|---|---|---|
2000 | 2010 | 2020 | |
全局Moran’s I Global Moran’s I | 0.1773 | 0.1253 | 0.1212 |
期望值Expectations | -0.0021 | -0.0021 | -0.0021 |
Z得分Z-score | 12.7709 | 10.5518 | 9.9270 |
P检验P-test | 0.0000 | 0.0000 | 0.0000 |
图4 2000-2020年甘肃省农牧交错带生态系统服务价值重心及标准差椭圆分布
Fig.4 Elliptical distribution of the center of gravity and standard deviation of ecosystem service value in the agro-pastoral ecotone of Gansu Province from 2000 to 2020
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