Response of Soil Microbial Biomass and Enzyme Activity to Soil Fertilization in an Eroded Farmland of Chinese Mollisols
Response of Soil Microbial Biomass and Enzyme Activity to Soil Fertilization in an Eroded Farmland of Chinese Mollisols
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DOI：
10.1080/00103624.2013.811525
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发表时间：
2013-08
影响因子：
1.8
通讯作者：
Y. Sui;Xiao-guang Jiao;Xiao-bing Liu;Xingyi Zhang;G. Ding
中科院分区：
文献类型：
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作者：
Y. Sui;Xiao-guang Jiao;Xiao-bing Liu;Xingyi Zhang;G. Ding
本研究的目的是探讨微生物生物量和土壤质量的酶活性之间的相互关系，并确定其适用于区分地区。研究包括5个模拟侵蚀土壤深度（0，5，10，20和30厘米），这已收到对比施肥处理在5年的时间在中国东北侵蚀黑土。结果表明，土壤微生物碳、氮、脲酶、磷酸酶和转化酶活性随侵蚀深度的增加而降低。土壤微生物碳、磷酸酶和转化酶在5个侵蚀深度上的变异范围分别为35.4- 53.3%、39.8- 45.2%和55.9- 67.1%。施肥+有机肥处理土壤微生物碳、氮、脲酶、磷酸酶和转化酶活性均显著高于施肥处理（P <0. 05）。本研究可为东北及类似地区土壤质量评价和肥力恢复提供依据。
The aims of this study were to examine interrelationships between microbial biomass and enzyme activities of soil quality and to determine their suitability for differentiating areas. The study included five simulated erosion soil depths (0, 5, 10, 20, and 30 cm), which had received contrasting fertilizer treatments over a 5-year period in an eroded black soil of northeastern China. Our results indicated that soil microbial carbon, nitrogen, urease, phosphatase, and invertase activities declined as the erosion depth increased. On the five erosion depths, soil microbial carbon, phosphatase, and invertase variation ranged as follows: 35.4–53.3, 39.8–45.2, and 55.9–67.1%, respectively. In the fertilizer + manure treatment, soil microbial carbon, nitrogen, urease, phosphatase, and invertase activities were significantly greater (P < 0.05) than those of fertilizer treatment in all five different erosion depths. Overall, this study may be considered as the foundation for soil quality evaluation and fertility restoration in northeastern China and similar regions.