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Concentrations and resorption patterns of 13 nutrients in different plant functional types in the karst region of south-western China
Changcheng Liu;  Yuguo Liu;  Ke Guo;  Shijie Wang;  Yao Yang
2014
Source PublicationAnnals of Botany
Volume113Issue:5Pages:873-885
Abstract

Background and Aims Elucidating the stoichiometry and resorption patterns of multiple nutrients is an essential requirement for a holistic understanding of plant nutrition and biogeochemical cycling. However, most studies have focused on nitrogen (N) and phosphorus (P), and largely ignored other nutrients. The current study aimed to determine relationships between resorption patterns and leaf nutrient status for 13 nutrient elements in a karst vegetation region. † Methods Plant and soil samples were collected from four vegetation types in the karst region of south-western China and divided into eight plant functional types. Samples of newly expanded and recently senesced leaves were analysed to determine concentrations of boron (B), calcium (Ca), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), manganese (Mn), molybdenum (Mo), N, sodium (Na), P, sulphur (S) and zinc (Zn). †Key Results Nutrient concentrations of the karst plants were lower than those normally found in other regions of China and the rest of the world, and plant growth was mainly limited by P. Overall, four nutrients revealed resorption [N (resorption efficiency 34.6 %), P (48.4 %), K (63.2 %) and Mg (13.2 %)], seven nutrients [B (–16.1 %), Ca (–44.0 %), Cu (–14.5 %), Fe (–205.5 %), Mn (–72.5 %), Mo (–35.6 %) and Zn (–184.3 %)] showed accumulation in senesced leaves and two nutrients (Na and S) showed no resorption or accumulation. Resorption efficiencies of K and Mg and accumulation of B, Ca, Fe and Mn differed among plant functional types, and this strongly affected litter quality. Resorption efficiencies of N, P and K and accumulation of Ca and Zn increased with decreasing concentrations of these nutrients in green leaves. The N:P, N:K and N:Mg ratios in green leaves predicted resorption proficiency for N, K and Mg, respectively. †Conclusions The results emphasize the fact that nutrient resorption patterns strongly depend on element and plant functional type, which provides new insights into plant nutrient use strategies and nutrient cycling in karst ecosystems

KeywordKarst Ecosystem Multiple Nutrients Nutrient Concentration Nutrient Limitation Plant Functional Type Plant Nutrient Use Strategy Resorption Efficiency Resorption Proficiency Stoichiometry
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/11194
Collection环境地球化学国家重点实验室
Affiliation1.State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
2.Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
4.Puding Karst Ecosystem Research Station, Chinese Academy of Sciences, Puding 562101, China and
5.University of Chinese Academy of Sciences, Beijing 100049, China
Recommended Citation
GB/T 7714
Changcheng Liu;Yuguo Liu;Ke Guo;Shijie Wang;Yao Yang. Concentrations and resorption patterns of 13 nutrients in different plant functional types in the karst region of south-western China[J]. Annals of Botany,2014,113(5):873-885.
APA Changcheng Liu;Yuguo Liu;Ke Guo;Shijie Wang;Yao Yang.(2014).Concentrations and resorption patterns of 13 nutrients in different plant functional types in the karst region of south-western China.Annals of Botany,113(5),873-885.
MLA Changcheng Liu;Yuguo Liu;Ke Guo;Shijie Wang;Yao Yang."Concentrations and resorption patterns of 13 nutrients in different plant functional types in the karst region of south-western China".Annals of Botany 113.5(2014):873-885.
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