It is unclear how or even if phosphorus (P) input alters the influence of nitrogen (N) deposition in a forest. In theory, nutrients leaves and twigs differing age may show different responses to elevated nutrient input. To test this possibility, we selected Chinese fir (Cunninghamia lanceolata) for series N P addition experiments using treatments +N1 − (50 kg ha−1 year−1), +N2 (100 −N + P, (without addition). Soil samples were analyzed mineral available concentrations. Leaves summer their...

Phosphate-solubilizing fungi (PSF) generally enhance available phosphorus (P) released from soil, which contributes to plants' P requirement, especially in P-limiting regions. In this study, two PSF, TalA-JX04 and AspN-JX16, were isolated the rhizosphere soil of moso bamboo (Phyllostachys edulis) widely distributed P-deficient areas China identified as Talaromyces aurantiacus Aspergillus neoniger, respectively. The PSF cultured potato dextrose liquid medium with six types initial pH values...

The impact of reforestation on soil organic carbon (OC), especially in deep layer, is poorly understood and OC stabilization relation with aggregation vegetation type afforested area unknown. Here, we collected topsoil (0–15 cm) (30–45 from six paired coniferous forests (CF) broad-leaved (BF) reforested the early 1990s subtropical China. Soil aggregates were separated by size dry sieving stability was measured closed-jar alkali-absorption 71 incubation days. concentration mean weight...

Abstract Atmospheric nitrogen (N) deposition greatly affects ecosystem processes and properties. However, few studies have simultaneously examined the responses of both above‐ belowground communities to N deposition. Here, we investigated effects 8 years simulated on soil microbial plant diversity in a subtropical forest. The quantities experimental added (g m −2 year −1 ) treatment codes were 0 (N0, control), 6 (N1), 12 (N2), 24 (N3). Phospholipid fatty acids (PLFAs) analysis was used...

Abstract. While we know that understory vegetation affects the soil microbial biomass and extracellular enzyme activities in subtropical Chinese fir (Cunninghamia lanceolata) forests, are less certain about degree of its influence. We determined to which abiotic biotic properties, such as PLFAs activities, were controlled by vegetation. established a paired treatment plantation, comprised one plot from litter removed (None) another was but left intact (Understory). evaluated how influenced...

Nutrient accumulation in desert soil can facilitate the succession of biological crusts (BSCs) from cyanobacterial to moss. The induction BSCs through cyanobacteria inoculation has already been successfully achieved. However, information on how utilize moss rapidly form is still limited. In this study, an 80-day experiment was conducted by inoculating and greenhouse Hobq Desert Field Station. Results showed that were reproduced with a maximum chlorophyll content 12.5 µg cm−2. stability...

Reforested plantations have substantial effects on terrestrial carbon cycling due to their large coverage area. Although understory plants are important components of reforested plantations, ecosystem dynamics remain unclear. This study was designed investigate the vegetation removal/understory removal and tree girdling soil respiration in Eucalyptus South China with contrasting ages (2 24 years old). We conducted a field manipulation experiment from 2008 2009. Understory reduced both...

Liming can affect soil biota through alterations in pH and structure. Many earlier studies monitored the responses of nematode communities to lime application but they did not come a consensus use indices community multivariate statistical approaches developed over past two decades. The present research explored short-term effects on an acrisol three Eucalyptus plantations southern China. Nematodes were sampled from control lime-treated plots at periods October 2011 February 2012 0-10 cm...

Plant–plant interactions are important not only for understanding biodiversity maintenance and plant community assembly but also forest conservation management. However, our knowledge about how species of different functional groups interact in forests is limited. For example, understory removal thought to enhance tree growth subtropical plantations such enhancement has been experimentally confirmed. In the present study, we conducted an experiment combined with nutrient addition examine...

Abstract Soil bacteria may be influenced by vegetation and play important roles in global carbon efflux nutrient cycling under changes. Coniferous broadleaved forests are two phyletically distinct types. microbial communities these have been extensively investigated but few studies presented comparable data regarding the characteristics of bacterial subtropical forests. We soil biomass community composition three pairs coniferous across a climatic gradient. found that differed between...

Ecological interactions between aboveground and belowground biodiversity have received many attentions in the recent decades. Although soil declined with decrease of plant diversity, previous studies found species identities were more important than diversity controlling biodiversity. This study focused on responses to altering functional groups, namely overstory understory vegetations, rather gradient. We conducted an experiment by removing and/or vegetation compare their effects microbial...

Soil microorganisms play key roles in ecosystems and respond quickly to environmental changes. Liming and/or understory removal are important forest management practices have been widely applied planted forests humid subtropical tropical regions of the world. However, few studies explored impacts lime application, removal, their interactive effects on soil microbial communities. We conducted a application experiment combined with Eucalyptus L’Hér. plantation. Responses communities (indicated...

Urbanization causes increases in temperature and alters soil carbon (C), nitrogen (N), phosphorus (P) cycles, but the degree to which these processes vary sensitivity along urban-rural gradient are unclear. We selected three typical vegetation types (forests, shrub, lawn) an urban-subruban-rural Nanchang, China, collected topsoil (at 0–15 cm depth) from 27 plots each measure C, N, P mineralization rates using thermostatic incubation. This was performed at ambient temperatures of 5 °C, 15 25...

Stand density regulation is an important measure of plantation forest management, and phosphorus (P) often the limiting factor tree productivity, especially in subtropics tropics. However, stand influence on ecosystem P cycling unclear Chinese fir (Cunninghamia lanceolata) plantations subtropical China. We collected rhizosphere bulk soils, leaves twigs with different ages roots orders to nitrogen (N) variables low (LDCF) high (HDCF) at Fujian Hunan provinces Rhizosphere soil labile P, slow...

Abstract Aims Drought stress and the degree of drought severity are predicted to rise under highly variable patterns precipitation due climate change, while capacity trees cope with recovery through physiological biochemical adjustment remains unclear. We aimed examine coupling physiology biochemistry in during following recovery. Methods Potted seedlings Cinnamomum camphora were grown well watered conditions prior experimental stress, which was initiated by withholding water. Seedlings...