Journal of Desert Research ›› 2024, Vol. 44 ›› Issue (3): 247-258.DOI: 10.7522/j.issn.1000-694X.2023.00111
Tian Yong1(), Jinxia Zhang1(
), Lijuan Chen2, Haiyang Xi2, Binwu Zhang3, Kaiyuan Gan1
Received:
2023-09-23
Revised:
2023-12-11
Online:
2024-05-20
Published:
2024-06-11
Contact:
Jinxia Zhang
CLC Number:
Tian Yong, Jinxia Zhang, Lijuan Chen, Haiyang Xi, Binwu Zhang, Kaiyuan Gan. Characteristics of soil water and salt spatial differentiation along the Yellow River section of Ulan Buh Desert and its causes[J]. Journal of Desert Research, 2024, 44(3): 247-258.
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URL: http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2023.00111
插值方法 | 土壤理化指标 | RMSE | MRE | MAE | R2 |
---|---|---|---|---|---|
反距离 权重 | 含水量/% | 2.959 | 0.018 | 2.171 | 0.903 |
电导率/(dS·m-1) | 0.231 | 0.442 | 0.021 | 0.977 | |
Cl-/(g·kg-1) | 0.142 | 0.748 | 0.126 | 0.787 | |
HCO | 0.185 | 0.343 | 0.128 | 0.950 | |
SO | 0.748 | 0.844 | 0.436 | 0.962 | |
K+/(g·kg-1) | 0.121 | 1.501 | 0.015 | 0.945 | |
Na+/(g·kg-1) | 0.119 | 2.344 | 0.102 | 0.842 | |
Ca2+/(g·kg-1) | 0.692 | 4.817 | 0.538 | 0.941 | |
Mg2+/(g·kg-1) | 0.076 | 1.280 | 0.053 | 0.869 | |
局部 多项式 | 含水量/% | 8.754 | 0.930 | 2.795 | 0.743 |
电导率/(dS·m-1) | 0.051 | 0.573 | 0.065 | 0.982 | |
Cl-/(g·kg-1) | 0.150 | 0.130 | 0.110 | 0.709 | |
HCO | 0.126 | 0.238 | 0.079 | 0.824 | |
SO | 0.307 | 0.664 | 0.170 | 0.147 | |
K+/(g·kg-1) | 0.011 | 1.171 | 0.009 | 0.764 | |
Na+/(g·kg-1) | 0.106 | 1.916 | 0.138 | 0.752 | |
Ca2+/(g·kg-1) | 0.501 | 0.475 | 0.003 | 0.881 | |
Mg2+/(g·kg-1) | 0.007 | 0.071 | 0.004 | 0.979 | |
径向基 函数 | 含水量/% | 4.609 | 0.907 | 3.250 | 0.749 |
电导率/(dS·m-1) | 0.133 | 0.077 | 0.084 | 0.990 | |
Cl-/(g·kg-1) | 0.107 | 0.259 | 0.083 | 0.763 | |
HCO | 0.093 | 0.208 | 0.068 | 0.921 | |
SO | 0.264 | 0.900 | 0.170 | 0.204 | |
K+/(g·kg-1) | 0.015 | 0.753 | 0.011 | 0.279 | |
Na+/(g·kg-1) | 0.134 | 1.485 | 0.098 | 0.553 | |
Ca2+/(g·kg-1) | 1.511 | 0.604 | 1.178 | 0.799 | |
Mg2+/(g·kg-1) | 0.073 | 0.743 | 0.047 | 0.806 | |
普通 克里金 | 含水量/% | 3.223 | 0.720 | 7.103 | 0.786 |
电导率/(dS·m-1) | 0.236 | 0.013 | 6.628 | 0.892 | |
Cl-/(g·kg-1) | 0.107 | 0.275 | 0.083 | 0.739 | |
HCO | 0.087 | 0.213 | 0.066 | 0.944 | |
SO | 0.303 | 0.891 | 0.168 | 0.208 | |
K+/(g·kg-1) | 0.032 | 1.249 | 0.022 | 0.617 | |
Na+/(g·kg-1) | 0.083 | 0.161 | 0.057 | 0.791 | |
Ca2+/(g·kg-1) | 1.903 | 0.213 | 1.416 | 0.764 | |
Mg2+/(g·kg-1) | 0.072 | 0.743 | 0.047 | 0.807 |
Table 1 Results of the space interpolation validation
插值方法 | 土壤理化指标 | RMSE | MRE | MAE | R2 |
---|---|---|---|---|---|
反距离 权重 | 含水量/% | 2.959 | 0.018 | 2.171 | 0.903 |
电导率/(dS·m-1) | 0.231 | 0.442 | 0.021 | 0.977 | |
Cl-/(g·kg-1) | 0.142 | 0.748 | 0.126 | 0.787 | |
HCO | 0.185 | 0.343 | 0.128 | 0.950 | |
SO | 0.748 | 0.844 | 0.436 | 0.962 | |
K+/(g·kg-1) | 0.121 | 1.501 | 0.015 | 0.945 | |
Na+/(g·kg-1) | 0.119 | 2.344 | 0.102 | 0.842 | |
Ca2+/(g·kg-1) | 0.692 | 4.817 | 0.538 | 0.941 | |
Mg2+/(g·kg-1) | 0.076 | 1.280 | 0.053 | 0.869 | |
局部 多项式 | 含水量/% | 8.754 | 0.930 | 2.795 | 0.743 |
电导率/(dS·m-1) | 0.051 | 0.573 | 0.065 | 0.982 | |
Cl-/(g·kg-1) | 0.150 | 0.130 | 0.110 | 0.709 | |
HCO | 0.126 | 0.238 | 0.079 | 0.824 | |
SO | 0.307 | 0.664 | 0.170 | 0.147 | |
K+/(g·kg-1) | 0.011 | 1.171 | 0.009 | 0.764 | |
Na+/(g·kg-1) | 0.106 | 1.916 | 0.138 | 0.752 | |
Ca2+/(g·kg-1) | 0.501 | 0.475 | 0.003 | 0.881 | |
Mg2+/(g·kg-1) | 0.007 | 0.071 | 0.004 | 0.979 | |
径向基 函数 | 含水量/% | 4.609 | 0.907 | 3.250 | 0.749 |
电导率/(dS·m-1) | 0.133 | 0.077 | 0.084 | 0.990 | |
Cl-/(g·kg-1) | 0.107 | 0.259 | 0.083 | 0.763 | |
HCO | 0.093 | 0.208 | 0.068 | 0.921 | |
SO | 0.264 | 0.900 | 0.170 | 0.204 | |
K+/(g·kg-1) | 0.015 | 0.753 | 0.011 | 0.279 | |
Na+/(g·kg-1) | 0.134 | 1.485 | 0.098 | 0.553 | |
Ca2+/(g·kg-1) | 1.511 | 0.604 | 1.178 | 0.799 | |
Mg2+/(g·kg-1) | 0.073 | 0.743 | 0.047 | 0.806 | |
普通 克里金 | 含水量/% | 3.223 | 0.720 | 7.103 | 0.786 |
电导率/(dS·m-1) | 0.236 | 0.013 | 6.628 | 0.892 | |
Cl-/(g·kg-1) | 0.107 | 0.275 | 0.083 | 0.739 | |
HCO | 0.087 | 0.213 | 0.066 | 0.944 | |
SO | 0.303 | 0.891 | 0.168 | 0.208 | |
K+/(g·kg-1) | 0.032 | 1.249 | 0.022 | 0.617 | |
Na+/(g·kg-1) | 0.083 | 0.161 | 0.057 | 0.791 | |
Ca2+/(g·kg-1) | 1.903 | 0.213 | 1.416 | 0.764 | |
Mg2+/(g·kg-1) | 0.072 | 0.743 | 0.047 | 0.807 |
饱和浸提液ECe/(dS·m-1) | 全盐量/(g·kg-1) | 盐碱化程度 | 植物反应 |
---|---|---|---|
0~2 | <1.0 | 非盐碱土 | 对植物无危害 |
2~4 | 1.0~3.0 | 轻度盐碱土 | 可能影响对盐分极敏感的植物 |
4~8 | 3.0~5.0 | 中度盐碱土 | 影响对盐分敏感的植物,不影响耐盐植物 |
8~16 | 5.0~10.0 | 重度盐碱土 | 只有耐盐植物可以存活,但影响种子发芽 |
>16 | >10.0 | 极重度盐碱土 | 只生长极少数耐盐植物 |
Table 2 Relations between electrical conductivity of the saturation extract, soil salt and vegetation growth
饱和浸提液ECe/(dS·m-1) | 全盐量/(g·kg-1) | 盐碱化程度 | 植物反应 |
---|---|---|---|
0~2 | <1.0 | 非盐碱土 | 对植物无危害 |
2~4 | 1.0~3.0 | 轻度盐碱土 | 可能影响对盐分极敏感的植物 |
4~8 | 3.0~5.0 | 中度盐碱土 | 影响对盐分敏感的植物,不影响耐盐植物 |
8~16 | 5.0~10.0 | 重度盐碱土 | 只有耐盐植物可以存活,但影响种子发芽 |
>16 | >10.0 | 极重度盐碱土 | 只生长极少数耐盐植物 |
土壤盐分指标 | 影响因子指标 | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
K+ | Na+ | Ca2+ | Mg2+ | Cl- | SO | HCO | 电导率 | 含水量 | 容重 | 黏粒 | 粉粒 | 砂粒 | pH值 | 全氮 | 全碳 | ||
K+ | 1.000 | 0.576** | 0.681** | 0.373** | 0.675** | 0.732** | 0.443** | 0.832** | 0.385** | -0.186* | 0.276** | 0.431** | -0.422** | 0.092 | 0.381** | 0.398** | |
Na+ | 1.000 | 0.460** | 0.795** | 0.634** | 0.551** | 0.520** | 0.697** | 0.642** | -0.333** | 0.547** | 0.745** | -0.737** | 0.183* | 0.593** | 0.691** | ||
Ca2+ | 1.000 | 0.242** | 0.702** | 0.903** | 0.541** | 0.778** | 0.490** | -0.087 | 0.411** | 0.527** | -0.524** | 0.161* | 0.539** | 0.531** | |||
Mg2+ | 1.000 | 0.349** | 0.267** | 0.319** | 0.452** | 0.535** | -0.216** | 0.426** | 0.607** | -0.598** | 0.126 | 0.516** | 0.569** | ||||
Cl- | 1.000 | 0.820** | 0.760** | 0.838** | 0.465** | -0.153* | 0.355** | 0.477** | -0.472** | 0.236** | 0.324** | 0.461** | |||||
SO | 1.000 | 0.461** | 0.942** | 0.319** | -0.063 | 0.223** | 0.370** | -0.361** | -0.043 | 0.306** | 0.336** | ||||||
HCO | 1.000 | 0.502** | 0.519** | -0.339** | 0.535** | 0.574** | -0.580** | 0.553** | 0.445** | 0.637** | |||||||
电导率 | 1.000 | 0.420** | -0.123 | 0.326** | 0.491** | -0.481** | -0.011 | 0.419** | 0.457** | ||||||||
含水量 | 1.000 | -0.369** | 0.715** | 0.834** | -0.836** | 0.303** | 0.690** | 0.780** | |||||||||
容重 | 1.000 | -0.403** | -0.471** | 0.472** | -0.253** | -0.379** | -0.515** | ||||||||||
黏粒 | 1.000 | 0.819** | -0.854** | 0.354** | 0.816** | 0.837** | |||||||||||
粉粒 | 1.000 | -0.998** | 0.365** | 0.830** | 0.958** | ||||||||||||
砂粒 | 1.000 | -0.371** | -0.844** | -0.962** | |||||||||||||
pH值 | 1.000 | 0.189* | 0.410** | ||||||||||||||
全氮 | 1.000 | 0.853** | |||||||||||||||
全碳 | 1.000 |
Table 3 Correlation analysis between soil physicochemical characteristics of different landscape types
土壤盐分指标 | 影响因子指标 | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
K+ | Na+ | Ca2+ | Mg2+ | Cl- | SO | HCO | 电导率 | 含水量 | 容重 | 黏粒 | 粉粒 | 砂粒 | pH值 | 全氮 | 全碳 | ||
K+ | 1.000 | 0.576** | 0.681** | 0.373** | 0.675** | 0.732** | 0.443** | 0.832** | 0.385** | -0.186* | 0.276** | 0.431** | -0.422** | 0.092 | 0.381** | 0.398** | |
Na+ | 1.000 | 0.460** | 0.795** | 0.634** | 0.551** | 0.520** | 0.697** | 0.642** | -0.333** | 0.547** | 0.745** | -0.737** | 0.183* | 0.593** | 0.691** | ||
Ca2+ | 1.000 | 0.242** | 0.702** | 0.903** | 0.541** | 0.778** | 0.490** | -0.087 | 0.411** | 0.527** | -0.524** | 0.161* | 0.539** | 0.531** | |||
Mg2+ | 1.000 | 0.349** | 0.267** | 0.319** | 0.452** | 0.535** | -0.216** | 0.426** | 0.607** | -0.598** | 0.126 | 0.516** | 0.569** | ||||
Cl- | 1.000 | 0.820** | 0.760** | 0.838** | 0.465** | -0.153* | 0.355** | 0.477** | -0.472** | 0.236** | 0.324** | 0.461** | |||||
SO | 1.000 | 0.461** | 0.942** | 0.319** | -0.063 | 0.223** | 0.370** | -0.361** | -0.043 | 0.306** | 0.336** | ||||||
HCO | 1.000 | 0.502** | 0.519** | -0.339** | 0.535** | 0.574** | -0.580** | 0.553** | 0.445** | 0.637** | |||||||
电导率 | 1.000 | 0.420** | -0.123 | 0.326** | 0.491** | -0.481** | -0.011 | 0.419** | 0.457** | ||||||||
含水量 | 1.000 | -0.369** | 0.715** | 0.834** | -0.836** | 0.303** | 0.690** | 0.780** | |||||||||
容重 | 1.000 | -0.403** | -0.471** | 0.472** | -0.253** | -0.379** | -0.515** | ||||||||||
黏粒 | 1.000 | 0.819** | -0.854** | 0.354** | 0.816** | 0.837** | |||||||||||
粉粒 | 1.000 | -0.998** | 0.365** | 0.830** | 0.958** | ||||||||||||
砂粒 | 1.000 | -0.371** | -0.844** | -0.962** | |||||||||||||
pH值 | 1.000 | 0.189* | 0.410** | ||||||||||||||
全氮 | 1.000 | 0.853** | |||||||||||||||
全碳 | 1.000 |
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