2021-5-31 · Primary successional ecosystems and the related soil development are often N limited. To date, N2-fixing communities during primary succession in alpine ecosystems have remained underexplored. In this study, we applied quantitative PCR (qPCR) quantitation and targeted amplicon sequencing of nifH in the Hailuogou Glacier foreland to investigate the succession of N2-fixing …
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2018-10-5 · Introduction. As the third largest grassland ecosystem in the world, China''s grasslands, spanning from temperate grasslands on the Inner Mongolian Plateau to alpine grasslands on the Tibetan Plateau (Chinese Academy of Sciences 2001), cover 40% of the national land area and 13% of the global grassland area (Liao and Jia 1996, Kang et al. 2007). ...
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INTRODUCTION. Foliar nutrient resorption is an important mechanism of plant nutrient conservation (), being especially significant for perennial plants.As leaf senesces, parts of the nutrient components (e.g. ~50% of the total leaf nitrogen [N] and phosphorus [P]) of the hydrolysed proteins, enzymes, lecithin and nucleic acids will be re-translocated to seeds, roots and other live parts of plants.
2015-10-5 · To study how grazing affects the uptake of inorganic and organic N forms, three focal plant species (i.e., the graminoid species Kobresia pygmaea, which decreases with grazing, and the forbs Potentilla bifurca and Potentilla multifida, which increase with grazing) were selected in ungrazed and grazed plots in an alpine meadow on the Tibetan Plateau. Three times during the growing season (i.e ...
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