盐碱胁迫下松嫩草地2种生态型羊草根际效应及光合生理响应
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姚远,徐月乔,王贵,孙伟
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Salt-Alkalinze Stress Induced Rhizosphere Effects and Photosynthetic Physiological Response of Two Ecotypes of Leymus chinensis in Songnen Meadow Steppe
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YAO Yuan,XU YueQiao,WANG Gui,SUN Wei
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表1 灰绿型羊草(GG)与黄绿型羊草(YG)非根际土壤及根际土壤理化性质对盐碱胁迫的响应
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Table 1 The response of soil physicochemical properties of bulk soil and rhizosphere soil of grey green (GG) and yellow green (YG) ecotypes of L. chinensis to the salt-alkaline stress
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土壤理化性质 Soil physicochemical property | 处理 Treatment | 灰绿型羊草 (GG) | 黄绿型羊草 (YG) | 非根际土 Bulk soil | 根际土 Rhizosphere soil | 非根际土 Bulk soil | 根际土 Rhizosphere soil | pH | 对照组CK | 8.46±0.01Ca | 8.27±0.02Cb | 8.53±0.03Ca | 8.44±0.02Cb | 中度盐碱MS | 9.22±0.05Ba | 8.98±0.05Bb | 9.20±0.04Ba | 8.99±0.04Bb | 重度盐碱SS | 9.87±0.04Aa | 9.66±0.02Ab | 9.77±0.04Aa | 9.62±0.04Ab | 电导率 Electrical conductivity (μs·cm-1) | 对照组CK | 174.25±27.92Ca | 135.5±9.37Ba | 133.25±9.11Cb | 213.50±12.14Ba | 中度盐碱MS | 1191.25±11.27Bb | 1248.0±16.7Aa | 1229.75±7.55Ba | 1259.50±25.65Aa | 重度盐碱SS | 1270.25±10.96Aa | 1181.5±64.85Aa | 1318.50±14.75Aa | 1198.25±68.38Aa | 总有机碳含量 Total organic carbon content (g·kg-1) | 对照组CK | 6.08±0.07Aa | 6.19±0.07Aa | 6.15±0.05Aa | 6.30±0.05Aa | 中度盐碱MS | 6.06±0.05Aa | 6.15±0.08Aa | 5.82±0.23Ba | 6.03±0.05Aa | 重度盐碱SS | 6.06±0.03Aa | 6.1±0.06Aa | 5.71±0.16Ba | 5.88±0.06Aa | 总氮含量 Total nitrogen content (g·kg-1) | 对照组CK | 1.40±0.1Aa | 1.53±0.13Aa | 1.08±0.1Aa | 1.17±0.06Aa | 中度盐碱MS | 1.16±0.07ABb | 1.4±0.03Aa | 0.84±0.05Aa | 0.92±0.02Ba | 重度盐碱SS | 0.85±0.16Bb | 1.28±0.02Aa | 0.83±0.09Aa | 0.87±0.03Ba | 铵态氮含量 NH4+-N content (mg·kg-1) | 对照组CK | 0.96±0.04Ab | 3.33±0.24Aa | 1.86±0.12Ab | 6.51±0.42Aa | 中度盐碱MS | 0.79±0.05Bb | 3.06±0.4Aa | 1.37±0.06Bb | 6.02±0.35Aa | 重度盐碱SS | 0.44±0.03Cb | 1.37±0.19Ba | 0.89±0.04Cb | 3.31±0.22Ba | 硝态氮含量 NO3--N content (mg·kg-1) | 对照组CK | 3.76±0.32Aa | 4.03±0.12Aa | 4.02±0.09Aa | 4.43±0.26Aa | 中度盐碱MS | 2.46±0.33Ba | 3.17±0.1Ba | 2.78±0.3Ba | 2.84±0.31Ba | 重度盐碱SS | 0.59±0.02Cb | 0.82±0.02Ca | 0.35±0.02Ca | 0.44±0.05Ca | 有效氮含量 Available nitrogen content (mg·kg-1) | 对照组CK | 4.37±0.19Ab | 7.28±0.5Aa | 6.1±0.28Ab | 10.70±0.21Aa | 中度盐碱MS | 3.36±0.16Bb | 6.02±0.22Ba | 3.56±0.2Bb | 8.32±0.42Ba | 重度盐碱SS | 1.09±0.04Cb | 1.97±0.14Ca | 1.23±0.08Cb | 3.39±0.14Ca |
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