tarbush

Dataset: 

Study number: 

398

Data set ID: 

210398002

Date range: 

1991-01-01 to 1991-12-31

Original investigator: 

Ross Virginia

Data contact: 

Abstract: 

Soil nutrient distribution in NPP quads in the Mesquite, Grassland, Playa, Creosotebush, and Tarbush plant communities sampled at 3 spatial scales of grids. Soils were sampled from the NPP (biomass plots). Each of the five vegetation types (mesquite, grassland, playa, creosote, tarbush) had three sites (with low, medium, and high production levels).

At 14 of 15 sites a grid of 70 by 70 meters was set out. Within this 49 plots of 10 by 10 meters were placed and labeled (numbered) in serpentine design. At the 15th site, Playa College, 48 plots of 10 by 10 meters were laid out in three long rows of 16 plots per row. At all sites the soil sample of 0-10 cm depth was taken 1 meter from the NE marker bar at a diagonal (heading toward the SW marker). 70m x 70m layout of NPP quads where 1 is in NE corner. 43 42 29 28 15 14 1 44 41 30 27 16 13 2 45 40 31 26 17 12 3 46 39 32 25 18 11 4 47 38 33 24 19 10 5 48 37 34 23 20 9 6 49 36 35 22 21 8 7 160m x 30m layout of P-COLL NPP quads where 1 is in NE corner. 33 32 1 34 31 2 35 30 3 36 29 4 37 28 5 38 27 6 39 26 7 40 25 8 41 24 9 42 23 10 43 22 11 44 21 12 45 20 13 46 19 14 47 18 15 48 17 16 At one of each of the five vegetation types another set of 49 soils (#101-149) was taken from within one of the 10 by 10 meter plots. Using a 7 by 7 meter grid (bounded by the southern east-west boundary line and the western north-south boundary line[#149 is in the SW corner]) soils were sampled 1 meter apart using a serpentine design. 7m x 7m layout within single 10m x 10m NPP plot. 143 142 129 128 115 114 101 144 141 130 127 116 113 102 145 140 131 126 117 112 103 146 139 132 125 118 111 104 147 138 133 124 119 110 105 148 137 134 123 120 109 106 149 136 135 122 121 108 107

Data download: 

Description: 

Data file information for the following Jornada data set: Soil nutrient distribution in long-term NPP plots - 1991

LTER Core Area(s): 

Dataset: 

Study number: 

398

Data set ID: 

210398001

Date range: 

1989-01-01 to 1989-12-31

Original investigator: 

Ross Virginia

Data contact: 

Abstract: 

Soil nutrient distribution beneath and between plant canopies in the Mesquite, Grassland, Playa, Creosotebush, and Tarbush plant communities. The LTER plant biomass plots was sampled in June 1989.

A total of 750 soil samples were collected from 5 depths (0- 10, 10-20, 20-40, 40-60, 60-100 cm), 2 locations (under and between shrubs), within 5 vegetation zones (Mesquite, Grassland, Playa, Creosotebush, Tarbush), 3 sites per zone (site with low, medium, and high biomass, ranked based on FALL-89 biomass), and 5 directions per site (in buffer zone just outside of NPP plots N, S, E, W, and in the center of NPP plots C). Samples were analyzed for pH, CaCO3, NaHCO3- extractable P, KCl-extractable NH4 and NO3, total kjeldahl N, Saturation extrac cations, and DTPA-extractable micronutrients.

Data download: 

Description: 

Data file information for the following Jornada data set: Soil nutrient distribution in long-term NPP plots

LTER Core Area(s): 

Dataset: 

Study number: 

29

Data set ID: 

210029001

Date range: 

1989-01-01 to 1990-12-31

Original investigator: 

John Anderson

Data contact: 

Abstract: 

Plant nutrient distribution beneath and between plant canopies in the Mesquite, Grassland, Playa, Creosotebush, and Tarbush plant communities.

The LTER plant biomass plots were harvested during spring, fall, 1989 and winter 1990, in 5 vegetation zones (Mesquite, Grassland, Playa, Creosotebush, Tarbush), 3 sites per zone (site with low, medium, and high biomass, ranked based on fall-89 biomass). Samples were analyzed for total Kjeldahl N, and total phosphorus. Site ranking based on Fall 1989 biomass estimates: ZONE SITES BIOMASS (using FALL-89 rank of plant) M RABB low M NORT medium M WELL high G IBPE low G SUMM medium G BASN high P TABO low P COLL medium P SMAL high C CALI low C GRAV medium C SAND high T WEST low T TAYL medium T EAST high

Description: 

Data file information for the following Jornada data set: NPP plant tissue chemistry 1989-1990

LTER Core Area(s): 

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