![]() Specifically, since nutrients derived from capture become less expensive than those from resorption as soil nutrient availability increases, the root capture strategy would be more favored than leaf resorption ( Wright and Westoby, 2003 Kou et al., 2017). In barren soils, plants should bear traits that prioritize conservation over active absorption of resources, whereas the opposite was expected in nutrient-rich soils. Naturally, whether these plant nutrient acquisition strategies co-vary or exhibit coordinated responses to a changing environment has drawn great attention from ecologists.Īllocation of effort toward nutrient capture and resorption depends on both the environment nutrient availability and the cost involved in these processes ( Wright and Westoby, 2003 Wang et al., 2014a). In recent decades, some other plant nutrient acquisition strategies have also been proposed, such as leaf nutrient resorption proficiency and efficiency ( Reed et al., 2012 He et al., 2020 Xu et al., 2020). It has been always considered that roots are the major tissue for the plant to acquire nutrients, and root nutrient acquisition strategies play a decisive role in the maintenance of forest ecosystem health and vitality ( Andersen et al., 2017 Ma et al., 2018 Li et al., 2019). ![]() The plant nutrient acquisition strategies cannot be underestimated in forest ecosystems, given that the plants usually do not have sufficient amounts of biologically available nutrients to support growth, survival, and reproduction, especially in nutrient-impoverished habitats ( Abrahão et al., 2018 Wang et al., 2020). glyptostroboides plantations under future environmental changes and the results could be applied to the nutrient management practices. Overall, our results can shed light on the nutrient acquisition strategies of M. The covariance-based structural equation modeling (CB-SEM) analysis indicated that stand age had positive effects on PRE whether under N or P fertilization, as well as on RSAF-P under N fertilization, whereas had no effects on the NRE or RSAF-N. Under N fertilization in young plantations, NRE was significantly positive correlated with root-soil accumulation factor for N ( RSAF-N). Under P fertilization in young and middle-aged plantations, PRE had a significant positive correlation with RSAF-P. For middle-aged forests under P fertilization, the NRE and leaf P resorption efficiency ( PRE) increased and the RSAF-P decreased. For young forests under P fertilization, the NRE increased whereas RSAF-P decreased. Results showed that under N fertilization in young plantations, leaf N resorption efficiency ( NRE) increased, and root-soil accumulation factor for P ( RSAF-P) decreased. Herein, this study investigated the responses of root-soil accumulation factor ( RSAF) and leaf nutrient resorption efficiency ( NuRE) to long-term N and P fertilization, and further explored the trade-off between them in Metasequoia glyptostroboides plantations with different stand age. However, it is still in a debate whether there is a synergy or tradeoff between above- and below-ground nutrient acquisition strategy under nitrogen (N) and phosphorus (P) addition, or with stand age. The plant nutrient acquisition strategies are diverse, such as root nutrient acquisition and leaf nutrient resorption, playing important roles in driving soil processes, vegetation performance as well as ecosystem nutrient cycling. 4Department of Forestry and Environmental Conservation, Clemson University, Clemson, SC, United States.3Forestry and Biotechnology College, Zhejiang A&F University, Hangzhou, China.2East China Coastal Forest Ecosystem Long-term Research Station, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China.1College of Forestry, Shanxi Agricultural University, Taigu, China.Geoff Wang 4, Tonggui Wu 2* and Xiuqing Yang 1* Rui Song 1,2, Ran Tong 2, Hui Zhang 3, G.
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