碳氮同位素结合稳定同位素模型解析沉积土壤碳源
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李娜,孙占祥,张燕卿,刘恩科,李凤鸣,李纯乾,李菲
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Contribution of Carbon Sources in Sedimentary Soils Combining Carbon and Nitrogen Isotope with Stable Isotope Model
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LI Na,SUN ZhanXiang,ZHANG YanQing,LIU EnKe,LI FengMing,LI ChunQian,LI Fei
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表1 不同土地利用类型土壤理化性质
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Table 1 Soil physical and chemical properties of different land use types
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土地利用类型
Land-use type | 容重
Bulk density (g·cm-3) | pH | 土壤含水量
Soil water content (%) | 土壤质地 Soil texture (%) | | 黏粒Clay | 粉粒 Silt | 砂粒 Sand | | 林地 Forest | 1.38±0.21a | 7.74b | 7.31±0.21ab | 17.17bc | 34.48c | 48.1a | | 耕地Cropland | 1.19±0.12c | 7.86b | 5.21±0.21a | 15.66bc | 40.31a | 44.03b | | 草地Gralssland | 1.27±0.05ab | 8.2a | 8.2±0.21ab | 18.31b | 40.63a | 41.06bc | | 沟渠Gully | 1.18±0.15c | 8.0a | 12.21±0.21c | 26.31a | 38.56abc | 35.13c |
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