| 引用本文: |
宋运红, 刘凯, 戴慧敏, 张哲寰, 赵君, 杨佳佳, 魏明辉. 2021. 35年来东北松辽平原耕地土壤全氮时空变化[J]. 中国地质, 48(1): 332-333. doi: 10.12029/gc20210123
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| Citation: |
SONG Yunhong, LIU Kai, DAI Huimin, ZHANG Zhehuan, ZHAO Jun, YANG Jiajia, WEI Minghui. 2021. Spatio-temporal variation of total N content in farmland soil of Songliao Plain in Northeast China during the past 35 years[J]. Geology in China, 48(1): 332-333. doi: 10.12029/gc20210123
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表 1 松辽平原全氮含量特征值表（10-3）
Table 1. Characteristic table of total nitrogen content in Songliao Plain
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图(1)
表(1)
Distribution of soil total N during the two periods in cultivated land of Songliao Plain (a, b, c) and grading map of the change of total nitrogen content in Songliao Plain in the past 35 years
