Nitrogen and phosphorus additions alter nutrient dynamics but not resorption efficiencies of Chinese fir leaves and twigs differing in age
نویسندگان
چکیده
منابع مشابه
Nitrogen and phosphorus additions alter nutrient dynamics but not resorption efficiencies of Chinese fir leaves and twigs differing in age.
It is unclear how or even if phosphorus (P) input alters the influence of nitrogen (N) deposition in a forest. In theory, nutrients in leaves and twigs differing in age may show different responses to elevated nutrient input. To test this possibility, we selected Chinese fir (Cunninghamia lanceolata) for a series of N and P addition experiments using treatments of +N1 - P (50 kg N ha(-1) year(-...
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Stand density regulation is an important measure of plantation forest management, and phosphorus (P) is often the limiting factor of tree productivity, especially in the subtropics and tropics. However, the stand density influence on ecosystem P cycling is unclear in Chinese fir (Cunninghamia lanceolata) plantations of subtropical China. We collected rhizosphere and bulk soils, leaves and twigs...
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M. E. S. Bracken ([email protected]), Dept of Ecology and Evolutionary Biology, Univ. of California, Irvine, CA 93923-2525, USA. – H. Hillebrand, Inst. for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky Univ. Oldenburg, Schleusenstrasse 1, DE-26382 Wilhelmshaven, Germany. – E. T. Borer and E. W. Seabloom, Dept of Ecology, Evolution and Behavior, Univ. of Minnesota, M...
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امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
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ژورنال
عنوان ژورنال: Tree Physiology
سال: 2015
ISSN: 0829-318X,1758-4469
DOI: 10.1093/treephys/tpv076