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United States Department of Agriculture (USDA) 2003

CARBON MANAGEMENT POLICY AT THE STATE LEVEL : CARBON DYNAMICS AT SITE, LANDSCAPE, AND REGIONAL SCALES FOR ARIZONA STATE LANDS

Carbon State Level Arizona

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : CARBON MANAGEMENT POLICY AT THE STATE LEVEL : CARBON DYNAMICS AT SITE, LANDSCAPE, AND REGIONAL SCALES FOR ARIZONA STATE LANDS

Identification : 5342-13610-007-07R

Pays : Etats Unis

Durée : Jan 1, 2003 à Dec 31, 2005

Domaine : Watershed Protection and Management ; Weather and Climate ; Instrumentation and Control Systems ; Conservation and Efficient Use of Water ; Water resources ; Desert and semidesert shrub land and shinnery

Partenaire : AGRICULTURAL RESEARCH SERVICE TUCSON

Objectif
The Arizona State Land Department is responsible for managing 3.8 million ha of state trust lands with 95% covered by grazing, agricultural and other uses that generate only nominal fees. This NASA grant will consider the process of carbon sequestration and the sale of such carbon on the marginal lands as a replacement for other uses that generate the nominal fees. This grant will utilizing ground sampling, remote sensing and modeling to establish starting points of vegetation and soil carbon to determine if carbon sequestration is a potential management strategy for state trust lands in Arizona and the southwest.

Descriptif
We propose to extensively sample the Santa Rita Experimental Range and Audubon Research Ranch in southeastern Arizona for carbon and nitrogen content and carbon and nitrogen isotopes under different types of range management. The soils will be sampled to a depth of 50 cm and the vegetation present with the different range management systems will determined by onsite verification and also satellite and aircraft remote sensing. The soil carbon and nitrogen contents and vegetation will be input into the Century Carbon Model to determine the carbon sequestration potential of these lands. This is the most extensive soil sampling and analysis of carbon and nitrogen in semi-arid range lands yet conducted and the impact of measuring carbon and nitrogen contents and linking the soil values to remote sensing and modeling has great potential to determine the best use of large tracts of state land in the west for mitigation of potential climate change

Présentation : USDA

Page publiée le 18 décembre 2015, mise à jour le 31 octobre 2017