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767 results for “Soil Moisture”
Continuously measured soil moisture, soil temperature, and air temperature from stations in Watershed 2, Coweeta Hydrologic Laboratory
Long-term soil moisture stations were established within the Coweeta Hydrologic Lab Basin to collect measurements of soil moisture, soil temperature, air temperature, and relative humidity at a range of spatial scales, from ridge to cove and low to high elevations in the southern Appalachians, and across the regional range of rainfall amounts.
Continuously measured soil moisture, soil temperature, and air temperature from stations in Watershed 5, Coweeta Hydrologic Laboratory
Long-term soil moisture stations were established within the Coweeta Hydrologic Lab Basin to collect measurements of soil moisture, soil temperature, air temperature, and relative humidity at a range of spatial scales, from ridge to cove and low to high elevations in the southern Appalachians, and across the regional range of rainfall amounts.
Continuously measured soil moisture, soil temperature, and air temperature from stations in Watershed 7, Coweeta Hydrologic Laboratory
Long-term soil moisture stations were established within the Coweeta Hydrologic Lab Basin to collect measurements of soil moisture, soil temperature, air temperature, and relative humidity at a range of spatial scales, from ridge to cove and low to high elevations in the southern Appalachians, and across the regional range of rainfall amounts.
Continuously measured soil moisture, soil temperature, and air temperature from a side-slope station located in Watershed 27, Coweeta Hydrologic Laboratory
Long-term soil moisture stations were established within the Coweeta Hydrologic Lab Basin to collect measurements of soil moisture, soil temperature, air temperature, and relative humidity at a range of spatial scales, from ridge to cove and low to high elevations in the southern Appalachians, and across the regional range of rainfall amounts.
Continuously measured soil moisture, soil temperature, and air temperature from a ridge station in Watershed 18, Coweeta Hydrologic Laboratory
Long-term soil moisture stations were established within the Coweeta Hydrologic Lab Basin to collect measurements of soil moisture, soil temperature, air temperature, and relative humidity at a range of spatial scales, from ridge to cove and low to high elevations in the southern Appalachians, and across the regional range of rainfall amounts.
Continuously measured soil moisture, soil temperature, and air temperature from stations in Watershed 32, Coweeta Hydrologic Laboratory
Long-term soil moisture stations were established within the Coweeta Hydrologic Lab Basin to collect measurements of soil moisture, soil temperature, air temperature, and relative humidity at a range of spatial scales, from ridge to cove and low to high elevations in the southern Appalachians, and across the regional range of rainfall amounts.
Continuously measured soil moisture, soil temperature, and air temperature from stations in Watershed 36, Coweeta Hydrologic Laboratory
Long-term soil moisture stations were established within the Coweeta Hydrologic Lab Basin to collect measurements of soil moisture, soil temperature, air temperature, and relative humidity at a range of spatial scales, from ridge to cove and low to high elevations in the southern Appalachians, and across the regional range of rainfall amounts.
Soil Moisture in the Biodiversity Gradient Experiment at the Kellogg Biological Station, Hickory Corners, MI (2001 to 2001)
Dataset Abstract Soil moisture measurements from the Fall of 2001 original data source http://lter.kbs.msu.edu/datasets/70
McMurdo Dry Valleys Human Disturbance Effects on soils - Soil Moisture
Concerns over environmental disturbance in the McMurdo Dry Valleys are increasing with increasing foot traffic from tourists and scientist. The effect of pedestrian disturbance were monitored by comparing the species composition, depth distribution and soil properties between adjacent high-, low- and no- traffic sites. This study began in the austral summer 1995/1996.
McMurdo Dry Valleys Soil Moistures for Soil Biota Distribution Experiment
Investigation of the variation in soil biota and soil properties across the McMurdo Dry Valleys was part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project.  The moisture content of soil samples collected for organism extraction and identification was determined.   The study began in the austral summer of 1993/1994. Samples were taken on:    * December 31, 1993  * January 3, 8, 10 and 13, 1994,  * December 12 and 22, 1994,  * January 6 and 9, 1995,  * November 1, 8, 16 and 27, 1995,  * December 5 and 7, 1995, and  * January 12, 1998. Â
McMurdo Dry Valleys Diurnal Effects on Soil Moisture
Investigation of the effect of short-term variation in soil moisture and soil temperature on nematode anhydrobiosis as part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project. The percent of anhydrobiotic nematodes with relation to soil moisture and temperature was determined. The study began at 0930 on 22 December 1997 and ended on 23 December 1997. The samples were taken at 0, 6, 12, 18, and 24 hrs.
McMurdo Dry Valleys Seasonal Effects on Soil Moisture
Investigation of the effect of long-term variation in soil moisture and soil temperature on nematode anhydrobiosis as part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project. The percent of anhydrobiotic (coiled) nematodes with relation to season was determined. The study took place on three separate dates during the 1997-1998 austral summer: 21 November 1997, 16 December 1997, and 13 January 1998.
McMurdo Dry Valleys Soil Properties Effects on Soil Moisture
Investigation of the effect of short-term variation in soil moisture and soil temperature on nematode anhydrobiosis as part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project. The percent of anhydrobiotic nematodes with relation to soil moisture, temperature, and salinity was determined. The study began in the austral summer of 1996/1997. Locations: South side Lake Hoare and Fryxell, and moss site near Canada Glacier.
McMurdo Dry Valleys Soilwetting Effects on Soil Moisture
Investigation of the effect of short-term variation in soil moisture and soil temperature on nematode anhydrobiosis as part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project. The percent of anhydrobiotic (coiled) nematodes with relation to soil moisture, temperature, and salinity was determined. The study began at 1030 on 10 December 1997 and ended on 11 December 1997. The samples were taken at 0, 6, 12, 18, and 24 hrs. Samples were collected in the south side of Lake Hoare
McMurdo Dry Valleys Habitat Suitability - Soil Moisture
Investigation of the variation in soil biota and soil properties across the McMurdo Dry Valleys as part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project. The moisture content of soil samples which are collected for organism extraction and identification is determined. This study was carried out in the austral summer 1993/1994
Con-mod soil moisture data in the Black Sand experiment plots for East Knoll, Audubon, Lefty, Soddie and Trough, 2019 - ongoing.
In the alpine tundra, shrubs modify wind distribution of snow, increasing snowpack on the leeward side of shrubs, and they provide shading, which modifies temperatures. In order to mimic these abiotic effect of shrubs, structures called connectivity modifiers, hereafter referred to as con-mods, were deployed in Black Band experiment plots in September 2018. Briefly, the Black Sand experiment was initiated in May 2018 to measure the effects of an extended growing season, by initiating earlier snow melt through the application of black sand, on plants and biogeochemistry. Together, this experimental framework allows us to ask how biotic effects influence climate exposure and ecological responsiveness.
Soil methane flux, temperature, moisture, C, and N data for South of saddle, 1991.
Methane emissions were measured from dry and wet meadow plots established by W. Bowman in the Boulder watershed south of the Saddle. The effects of N and P fertilization were evaluated.
Soil moisture and nutrient data for Saddle grid, 1990.
Soil samples from a 10-cm depth were collected at each vegetated grid stake on the Saddle. These samples were analyzed for carbon and organic matter content. Texture, pH, moisture, and bulk density were also determined. The samples were collected in 1990 and were analyzed at the Soil Testing Laboratory at Colorado State University and at the INSTAAR sedimentology laboratory.
Time domain reflectometry soil moisture data for Niwot Ridge, 1992 - 2002.
Soil moisture was estimated at several locations on Niwot Ridge using a portable PC in conjunction with time-domain reflectometry (TDR) technology. The system used consisted of a Tektronics 1502B reflectometer, a Tektronics SP232 interface module, a Compaq LTE/232 PC, coaxial cable, and a probe that was left semi-permanently in the soil. The reflectometer generated an electrical step voltage pulse which was propagated down the cable to the probe. The reflected voltage waveform was measured, stored, and displayed by the reflectometer and the Tektronics SP232 interface module. The waveform is represented as a 2-dimensional data array, with the x-axis representing time (which is converted to distance using the dielectric constant of the cable) and the y-axis representing voltage for the given time: in this system this value is represented in millirho units (Tektronics 1991). The length of the waveform is determined by measuring the difference between the soil air interface (SAI) and the end of the voltage step reflection (RE). The SAI value is equivalent to the apex of the first peak in the wave and the RE value is equivalent to the intersection of tangents "drawn" at (a) the bottom of the wave and (b) the point of the steepest rise (see Taylor and Seastedt 1992). The waveform length is then used to estimate the volumetric and gravimetric moisture of the surrounding soil.
Soil moisture data for Saddle nodal plots, 1982 - 1989.
Soil moisture sampling in the Saddle area was performed at the ends (outside of) 12 permanent plots representing 6 plant communities or noda (two from each nodum) in the Saddle (May 1973). The design and location of the nodal plots was described in Pollak et al. (1988). Soil moisture data were collected from the 12 nodal plots weekly during the growing season from 1 June (Julian day 152) 1982 through mid-August 1988. Less-intensive sampling was done during the 1989 growing season. Sampling began when the plots became snow-free. The last sampling date varied among years and depended upon when plants had dehisced, weather, and available personnel. Soil moisture percentages were determined gravimetrically using soil samples collected outside of but adjacent to the ends of the plots (within 0.5 m of plot end). A #6 cork borer (64 mm^2) was used to remove a soil sample from each plot end (two per plot). Samples were taken from the rooting zone to a depth of 5 to 10 cm. A length of 5/8-inch diameter pipe (198 mm^2) was used instead of the cork borer in 1988. If rocks prevented an adequate sample depth, collection of a new sample was attempted nearby. Prior to the 1986 season a metal probe was used to detect below-ground rocks. Extracted cores were pushed into film canisters which were then sealed and labeled. Samples were collected before noon and were weighed within 10 hr. The wet soil samples were placed on aluminum pans, weighed, and oven dried at 100 degrees C for at least 24 hr. Dried soil was removed from the oven and immediately weighed. Prior to 1986 dried soil was placed in a dessicator for 15 min before weighing. Dried soil cores were saved and returned to the core holes. Wet+pan weights, dry+pan weights, and pan weights were recorded. Soil moisture was calculated as (((wet + pan weight) - (dry + pan weight)/((dry + pan weight) - pan weight)) * 100.
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