Controls on soil arylsulfatase activity at a regional scale
Controls on soil arylsulfatase activity at a regional scale
复制标题
区域范围内土壤芳基硫酸酯酶活性的控制
DOI：
10.1016/j.ejsobi.2018.11.001
复制
发表时间：
2019
影响因子：
4.2
通讯作者：
Wang Kelin
中科院分区：
文献类型：
--
作者：
Chen Hao;Liu Jing;Li Dejun;Xiao Kongcao;Wang Kelin
土壤芳基硫酸酯酶（ARS）是控制土壤有机硫获得和硫循环的重要酶。然而，相对于那些参与有机碳、氮、磷获取的酶，ARS活性及其调控机制的研究却很少。本文通过对中国西南地区土壤ARS活性的区域性调查，探讨了影响土壤ARS活性的主要因素。结果表明，土壤ARS活性从农田到森林后农业演替增加，并在碎屑岩显着低于白云岩或石灰岩。在研究的14个土壤变量中，有5个变量（土壤pH、交换性钙、有机碳、粘粒和粉粒）与ARS活性之间存在显著的相关性，且这些相关性均为非线性。通径分析进一步表明，土壤pH和质地对土壤ARS活性的影响最大，而土壤钙和有机碳对ARS活性的影响是间接或虚假的。与以往大多采用线性分析的方法不同，非线性分析是探索土壤ARS活性控制因素的一种较好方法，在区域尺度上，土壤pH和土壤质地可能是土壤ARS活性最敏感的指标。
Soil arylsulfatase (ARS) is an important enzyme that controls the acquisition of organic sulfur and thus the soil sulfur cycling. However, compared to those enzymes that involved in the acquisition of organic carbon, nitrogen, and phosphorus, ARS activity and its regulations have rarely been investigated. Here, a regional-scale investigation on soil ARS activity was conducted in southwest China to determine the major controls on soil ARS activity. Results showed that soil ARS activity increased from cropland through to forest following post-agriculture succession, and was significantly lower in clasolite than in dolomite or limestone. Among 14 studied soil variables, five variables (i.e. soil pH, exchangeable calcium, organic carbon, clay and silt) showed significant relationships with ARS activity, and these relationships were non-linear. Path analysis further showed that the activity of soil ARS was most controlled by soil pH and soil texture, but soil calcium and organic carbon only had indirect or spurious effects on ARS activity. Differing from most previous studies that used linear analysis, our results highlight that non-linear analysis is a better way for exploring the controlling factors of soil ARS activity, and we suggest that at the regional scale, soil pH and soil texture may be the most sensitive indicators of soil ARS activity.
登录
查看更多内容
影响因子：
9.7
作者：
S. Klose;K. Wernecke;F. Makeschin
通讯作者：
S. Klose;K. Wernecke;F. Makeschin
影响因子：
9.7
作者：
Saiya-Cork, KR;Sinsabaugh, RL;Zak, DR
通讯作者：
Zak, DR
DOI：
10.1007/978-3-540-68027-7_3
发表时间：
2007
期刊：
--
影响因子：
--
作者：
E. Bünemann;L. Condron
通讯作者：
E. Bünemann;L. Condron
影响因子：
9.7
作者：
Baker, Nameer R.;Allison, Steven D.
通讯作者：
Allison, Steven D.
影响因子：
9.7
作者：
J. Prietzel
通讯作者：
J. Prietzel