Water Relations: Habitats
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Water relations and microclimate around the upper limit of a cloud forest in Maui, Hawai'i.
The goal of this study was to determine the effects of atmospheric demand on both plant water relations and daily whole-tree water balance across the upper limit of a cloud forest at the mean base height of the trade wind inversion in the tropical trade wind belt. We measured the microclimate and water relations (sap flow, water potential, stomatal conductance, pressure-volume relations) of Met...
متن کاملLife in extreme environments
Extreme habitats lie outside the range of conditions in which most of organisms live. 'Extreme' includes physical extremes, e.g. temperature, radiation, pressure, and geochemical extreme, for example desiccation, salinity, pH, depletion of oxygen or extreme redox potential. Investigations of these environments are important for the study of evolution relationships, emergence of new species and ...
متن کاملPlant Responses to an Edaphic Gradient across an Active Sand Dune/desert Boundary in the Great Basin Desert
In arid ecosystems, variation in precipitation causes broad-scale spatial heterogeneity in soil moisture, but differences in soil texture, development, and plant cover can also create substantial local soil moisture heterogeneity. The boundary between inland desert sand dunes and adjacent desert habitats exhibits abrupt changes in soil and vegetation characteristics that may be associated with ...
متن کاملHydraulic architecture and water relations of a flood-tolerant tropical tree, Annona glabra.
Hydraulic architecture parameters, water relation parameters and wood anatomy were studied in roots and shoots of the flood-tolerant tree Annona glabra L. on Barro Colorado Island, Panama. Hydraulic conductivity, leaf specific conductivity, and Huber value were similar to the corresponding values for tree species living in non-flooded habitats. The vulnerability of stems to loss of hydraulic co...
متن کاملAgricultural Set-aside Programs and Grassland Birds: Insights from Broad-scale Population Trends
The Conservation Reserve Program (CRP) is a voluntary set-aside program in the United States designed to ameliorate soil erosion, control crop overproduction, enhance water quality, and provide wildlife habitat by replacing crops with other forms of land cover. Because CRP includes primarily grass habitats, it has great potential to benefit declining North American grassland bird populations. W...
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تاریخ انتشار 2017