Land Ecosystems and Hydrology
نویسندگان
چکیده
منابع مشابه
Hydrology of Southwestern Encinal Oak Ecosystems: a Review and More
Information about the hydrology of oak ecosystems of the southwestern United States and northern Mexico is lacking (Lopes and Ffolliott 1992, Baker et al. 1995) even though the woodlands and savannas cover more than 31,000 square miles. These ecosystems generally are found between 4,000 and 7,300 feet in elevation. Precipitation occurs in the winter and summer and averages between 15 and 20 inc...
متن کاملLinking Ground Hydrology to Ecosystems and Carbon Cycle in a Climate Model
The paper discusses land surface processes in a climate model, linking the roles of hydrology, ecosystems, and carbon cycling. The integrating factor is the movement of water and carbon dioxide through the stomates of leaves. This molecular gas transfer is a major control of coupling between land and the atmosphere, as required for modeling climate variability and change, land storage of carbon...
متن کاملThe Current Extent and Recent Loss of Dryland Forest Ecosystems
Land-cover change is regarded as the most important global change affecting ecological systems (Vitousek, 1994). Natural landscapes – i.e. those largely unaffected or hardly affected by human activities – are being rapidly transformed into urban and farmland landscapes throughout the world (Foley et al., 2005; Feranec et al., 2010; López and Sierra, 2010). As the characteristics of land-cover h...
متن کاملVegetation dynamics and soil water balance in a water-limited Mediterranean ecosystem on Sardinia, Italy
Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Mediterranean ecosystems are commonly heterogeneous savanna-like ecosystems, with contrasting plant functional types (PFTs, e.g., grass and woody vegetation) competing for the water use. Mediterranean ecosystems are also commonly character...
متن کاملResponse of the nitrogen isotopic composition of tree-rings following tree-clearing and land-use change.
Clear-cutting of forests affects the nitrogen cycle and the nitrogen isotopic composition of bioavailable ammonium and nitrate in the soil. Here, we have used nitrogen isotopic variations of tree-rings in red oak (Quercus rubra) and white oak (Quercus alba) as indicators of changes in the nitrogen cycle on a local scale. The delta15N values of late-wood from trees at two remnant forest stands i...
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