Rethinking species selection for restoration of arid shrublands
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منابع مشابه
Directional climate change and potential reversal of desertification in arid and semiarid ecosystems
Our objective was to determine if long-term increases in precipitation can maintain grasslands susceptible to desertification, and initiate a reversal of historic regime shifts on desertified shrublands. Perennial grass production and species richness in a multi-year wet period were hypothesized to be greater than expected based on precipitation in a sequence of dry years. These responses were ...
متن کاملStability of exotic annual grasses following restoration efforts in southern California coastal sage scrub
1. Restoration of semi-arid shrub ecosystems often requires control of invasive grasses but the effects of these grass-control treatments on native and exotic forbs have not been investigated adequately to assess long-term stability. In southern California, coastal sage scrub (CSS) vegetation is one semi-arid shrub community that has been invaded extensively by both exotic grasses and exotic fo...
متن کاملAssessing vegetation rehabilitation under restoration operations in arid rangelands (Case study: Bastak, Hormozgan province)
Background and objectives A large area of Iran rangelands is located in arid and semi-arid areas which a significant percentage of them have been degraded and are not in good condition. In these areas, vegetation restoration is not easy due to the water scarcity. Water harvesting operations are among the necessary management measures to restore and develop the rangelands of these areas. Water ...
متن کاملPlant Community Water Use and Invasibility of Semi-arid Shrublands by Woody Species in Southern California
Soil moisture is a key limiting resource in arid and semi-arid environments for woody shrub species. We assessed if three arid communities differed in their level of dry season soil moisture content and if the dominant species in these communities differed in their ability to use soil moisture. Water potential of all of the dominant woody plant species occurring in chaparral, coastal sage, and ...
متن کاملEvaluating the complementary relationship for estimating evapotranspiration from arid shrublands
[1] Given increasing demands on finite water supplies, accurate estimates of evapotranspiration (LE) from arid shrublands of the Southwestern United States are needed to develop or refine basin water budgets. In this work, a novel approach to estimating the equilibrium (or wet environment) surface temperature (Te) and LE from regionally extensive phreatophyte shrublands is tested using compleme...
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تاریخ انتشار 2010