دورية أكاديمية
Phosphorus limitation of aboveground production in northern hardwood forests.
| العنوان: | Phosphorus limitation of aboveground production in northern hardwood forests. |
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| المؤلفون: | Goswami S; Department of Biology, Miami University, Oxford, Ohio, 45056, USA., Fisk MC; Department of Biology, Miami University, Oxford, Ohio, 45056, USA., Vadeboncoeur MA; Earth Systems Research Center, University of New Hampshire, Durham, New Hampshire, 03824, USA., Garrison-Johnston M; SUNY-ESF Ranger School, 257 Ranger School Road, Wanakena, New York, 13695, USA., Yanai RD; Department of Forest and Natural Resource Management, SUNY College of Environmental Science and Forestry, Syracuse, New York, 13210, USA., Fahey TJ; Department of Natural Resources, Cornell University, Ithaca, New York, 14853, USA. |
| المصدر: | Ecology [Ecology] 2018 Feb; Vol. 99 (2), pp. 438-449. Date of Electronic Publication: 2018 Jan 16. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Ecological Society of America Country of Publication: United States NLM ID: 0043541 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0012-9658 (Print) Linking ISSN: 00129658 NLM ISO Abbreviation: Ecology Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Washington, DC : Ecological Society of America Original Publication: Brooklyn, NY : Brooklyn Botanical Garden |
| مواضيع طبية MeSH: | Ecosystem*, Phosphorus/*analysis, Forests ; New Hampshire ; Nitrogen/analysis ; Soil ; Trees |
| مستخلص: | Forest productivity on glacially derived soils with weatherable phosphorus (P) is expected to be limited by nitrogen (N), according to theories of long-term ecosystem development. However, recent studies and model simulations based on resource optimization theory indicate that productivity can be co-limited by N and P. We conducted a full factorial N × P fertilization experiment in 13 northern hardwood forest stands of three age classes in central New Hampshire, USA, to test the hypothesis that forest productivity is co-limited by N and P. We also asked whether the response of productivity to N and P addition differs among species and whether differential species responses contribute to community-level co-limitation. Plots in each stand were fertilized with 30 kg N·ha -1 ·yr -1 , 10 kg P·ha -1 ·yr -1 , N + P, or neither nutrient (control) for four growing seasons. The productivity response to treatments was assessed using per-tree annual relative basal area increment (RBAI) as an index of growth. RBAI responded significantly to P (P = 0.02) but not to N (P = 0.73). However, evidence for P limitation was not uniform among stands. RBAI responded to P fertilization in mid-age (P = 0.02) and mature (P = 0.07) stands, each taken as a group, but was greatest in N-fertilized plots of two stands in these age classes, and there was no significant effect of P in the young stands. Both white birch (Betula papyrifera Marsh.) and beech (Fagus grandifolia Ehrh.) responded significantly to P; no species responded significantly to N. We did not find evidence for N and P co-limitation of tree growth. The response to N + P did not differ from that to P alone, and there was no significant N × P interaction (P = 0.68). Our P limitation results support neither the N limitation prediction of ecosystem theory nor the N and P co-limitation prediction of resource optimization theory, but could be a consequence of long-term anthropogenic N deposition in these forests. Inconsistencies in response to P suggest that successional status and variation in site conditions influence patterns of nutrient limitation and recycling across the northern hardwood forest landscape. (© 2017 by the Ecological Society of America.) |
| فهرسة مساهمة: | Keywords: aboveground productivity; co-limitation; nitrogen; northern hardwoods; nutrient fertilization; phosphorus |
| المشرفين على المادة: | 0 (Soil) 27YLU75U4W (Phosphorus) N762921K75 (Nitrogen) |
| تواريخ الأحداث: | Date Created: 20171206 Date Completed: 20190902 Latest Revision: 20190902 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1002/ecy.2100 |
| PMID: | 29205288 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 0012-9658 |
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| DOI: | 10.1002/ecy.2100 |