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Regional assessment of environmental vulnerability in the Tibetan Plateau: Development and application of a new method
Source/sink removal affects mobile carbohydrates in Pinus cembra at the Swiss treeline
It is concluded that the NSC pool in treeline trees responds to a perturbation of the source/sink balance over a wide range of NSC concentrations, which reflects the availability of carbohydrates.
Litterfall production, decomposition and nutrient use efficiency varies with tropical forest types in Xishuangbanna, SW China: a 10-year study
Litterfall production, decomposition and nutrient use efficiency in three different tropical forest ecosystems in SW China were studied for 10 years. Annual mean litterfall production in tropical…
Trace elements in sub-alpine forest soils on the eastern edge of the Tibetan Plateau, China
Industrial development has increased fast in China during the last decades. This has led to a range of environmental problems. Deposition of trace elements to forest ecosystems via the atmosphere is…
Environmental changes drive the temporal stability of semi‐arid natural grasslands through altering species asynchrony
Stability is an important property of ecological systems, many of which are experiencing increasing levels of anthropogenic environmental changes. However, how these environmental changes influence…
Recovery of trees from drought depends on belowground sink control
These findings show that trees prioritize the investment of assimilates below ground, probably to regain root functions after drought, and propose that root restoration plays a key role in ecosystem resilience to drought, in that the increased sink activity controls the recovery of carbon balances.
Nitrogen and carbon source-sink relationships in trees at the Himalayan treelines compared with lower elevations.
It is suggested that the persistence and development of treeline trees in a harsh alpine environment may require a minimum level of the total NSC concentration, a sufficiently high sugar:starch ratio, and a balanced carbon source-sink relationship.
Fractal characteristics of soils under different land-use patterns in the arid and semiarid regions of the Tibetan Plateau, China
Mobile carbohydrates in Himalayan treeline trees I. Evidence for carbon gain limitation but not for growth limitation.
It is concluded that survival and growth of trees at the elevational or latitudinal climate limit depend not only on NSC concentration in perennial tissues, but also on the maintenance of an overwintering sugar:starch ratio greater than three.
Seasonal Exposure to Drought and Air Warming Affects Soil Collembola and Mites
- Guo-liang Xu, T. Kuster, M. Günthardt-Goerg, M. Dobbertin, Maihe Li
- Biology, MedicinePloS one
- 15 August 2012
Drought appeared to have a negative impact on soil microarthropod fauna, but the effects of climate change on soil fauna may vary with the soil type.