Pennsylvania Spatial Data Access

Abstract:

This layer shows potential land area for the production of biofuel feedstocks, specifically switchgrass, on cropland that has been abandoned since 1969.  This time frame was chosen to exclude abandoned land that has developed a mature forest cover, and consequently an inapropriate location for growing switchgrass.  Areas and corresponding crop production totals are aggregated by counties in the Chesapeake Bay.

Purpose:

This dataset is intended to illustrate the potential for biofuel production in the Chesapeake Bay, in a manner that does not compete with current food or fiber production. This data was used in support of a Chesapeake Bay Commission report titled: "Chesapeake Biofuel Policies: Balancing Energy, Economy and Environment" published in 2010.

Currentness_Reference:

publication date

Use_Constraints:

The user shall indemnify, save harmless, and, if requested, defend the Commonwealth, the University, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation.

The University excludes any and all implied warranties, including warranties or merchantability and fitness for a particular purpose.

The University makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance.

The University will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

The USER is granted permission to translate and add value to the FILES for the use of the FILES on its computer hardware; provided, however, that the USER annually notify the University of any customizing or value-adding work done.

Address:

115 Land & Water Research Building

Attribute_Definition:

Internal feature number.

Attribute_Definition_Source:

ESRI

Attribute_Definition:

Feature geometry.

Attribute_Definition_Source:

ESRI

Attribute_Definition:

Maximum cropland area of any year since 1969

Attribute_Definition_Source:

PSU

Attribute_Definition:

Maximum cropland area of any year since 1969 (ha)

Attribute_Definition_Source:

PSU

Attribute_Definition:

Current (2007) cropland area (NASS)

Attribute_Definition_Source:

PSU

Attribute_Definition:

Cropland abandoned since 1969 (max - 2007)

Attribute_Definition_Source:

PSU

Attribute_Definition:

Number of NLCD pixels that transitioned from Ag to Urban classes between 1992 and 2001

Attribute_Definition_Source:

PSU

Attribute_Definition:

Number of NLCD pixels that transitioned from Ag to non-urban classes between 1992 and 2001

Attribute_Definition_Source:

PSU

Attribute_Definition:

% of ag land that transitioned to urban from 1992 to 2001

Attribute_Definition_Source:

PSU

Attribute_Definition:

Sum of AgToUrban and AgToElse

Attribute_Definition_Source:

PSU

Attribute_Definition:

% of abandoned cropland that is estimated to have transitioned to urban (Aban1969 * PctUrbCh)

Attribute_Definition_Source:

PSU

Attribute_Definition:

Cropland abandoned since 1969 that has not transitioned to urban and is therefore a potential resource for switchgrass production (Aban1969 - 69ToUrbn)

Attribute_Definition_Source:

PSU

Attribute_Definition:

Switchgrass yield (Dartmouth model)

Attribute_Definition_Source:

PSU

Attribute_Definition:

Switchgrass production multiplied by .4 to derive a low estimate (Mg)

Attribute_Definition_Source:

PSU

Attribute_Definition:

Switchgrass production multiplied by .75 to derive a high estimate (Mg)

Attribute_Definition_Source:

PSU

Attribute_Definition:

Adjusted switchgrass production total multiplied by .1 to adjust for land owner willingness-to-manage

Attribute_Definition_Source:

PSU

Attribute_Definition:

Adjusted switchgrass production total multiplied by .25 to adjust for land owner willingness-to-manage

Attribute_Definition_Source:

PSU

Distribution_Liability:

The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

Address:

115 Land & Water Research Building

Biofuel Feedstock Potential in the Chesapeake Bay - Switchgrass on Abandoned Cropland