Information that is not available at this time, must be included when available. For these fields, enter . For fields that will not have information, enter . See data manager for any questions regarding this form. Characterized by an abundance of sunshine, a wide range between day and night temperatures, low relative humidity, an evapotranspiration rate averaging 229 cm per year, and extremely variable precipitation.
Droughts are recurrent climatic phenomenon.
For each community type, three permanent plots representing a range of primary productivity have been established to examine patterns of NPP, soil moisture, plant nutrients as a function of climatic variation. Plant nutrient distribution beneath and between plant canopies in the Mesquite, Grassland, Playa, Creosotebush, and Tarbush plant communities. Samples were analyzed for total Kjeldahl N, and total phosphorus. Usually 1-10 which are listed sequentially with no spacing. Plant samples are harvested adjacent to permanent NPP sites, avoiding plants obviously damaged by livestock or by previous harvests, or otherwise unrepresentative of plants within permanent quadrats.