caa a22 4500 606219188 CHVBK 20210128101117.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s11104-015-2406-8 doi (NATIONALLICENCE)springer-10.1007/s11104-015-2406-8 Changes in nitrogen and phosphorus limitation during secondary succession in a karst region in southwest China [Elektronische Daten] [Wei Zhang, Jie Zhao, Fujing Pan, Dejun Li, Hongsong Chen, Kelin Wang] Background and aims: Nitrogen (N) and/or phosphorus (P) limitation to primary productivity and other biological processes can change in a variety of ways as ecosystems develop. How N limitation and P limitation change from the early to the late stages of a secondary succession following farmland abandonment remains unclear in karst ecosystems in southwest China. Methods: We used community foliar N:P ratio, soil alkaline phosphatase activity (APA) and other indicators of nutrient status (soil organic carbon [SOC], total soil N [TN], and total soil P [TP], Alkali-hydrolyzable N [AN], and available soil phosphorus [AP] concentrations) to examine changes in N and P status during secondary vegetation succession. Four types of plant communities (grasslands, shrublands, secondary forest, and primary forest) represented the early, middle, late, and very late successional stages, respectively. Results: Community foliar N:P ratio, APA, and APA per unit SOC increased as succession proceeded from the grassland to the secondary and primary forest communities. Moreover, community foliar N:P ratios in the grassland were positively correlated with soil TN, while community foliar N:P ratios in the secondary forest and primary forest were negatively correlated with soil TP, but were not correlated with soil TN. Community foliar N:P ratios in the shrubland were not correlated with either soil TN or TP. Conclusions: Our results suggest that the grassland in the karst region of southwest China is N limited, that the secondary and primary forests are P limited, and that the shrubland is constrained by N and P together or by other nutrients. Springer International Publishing Switzerland, 2015 Nitrogen limitation nationallicence Phosphorus limitation nationallicence N:P ratio nationallicence Phosphatase activity nationallicence Vegetation succession nationallicence Karst ecosystems nationallicence APA : Alkaline phosphatase activity nationallicence SOC : Soil organic carbon nationallicence Zhang Wei Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut Zhao Jie Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut Pan Fujing Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut Li Dejun Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut Chen Hongsong Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut Wang Kelin Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut Plant and Soil Springer International Publishing 391/1-2(2015-06-01), 77-91 0032-079X 391:1-2<77 2015 391 11104 https://doi.org/10.1007/s11104-015-2406-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2406-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Wei Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut NATIONALLICENCE 700 1- Zhao Jie Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut NATIONALLICENCE 700 1- Pan Fujing Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut NATIONALLICENCE 700 1- Li Dejun Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut NATIONALLICENCE 700 1- Chen Hongsong Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut NATIONALLICENCE 700 1- Wang Kelin Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, Hunan, China aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 391/1-2(2015-06-01), 77-91 0032-079X 391:1-2<77 2015 391 11104