Factors affecting the spatial density of longleaf pine plantations under the Conservation Reserve Program in Georgia, United States
2021
Paudel, Karuna | Dwivedi, Puneet | Dickens, David
Several initiatives are promoting longleaf pine (Pinus palustris) restoration in the Southern United States for conserving biodiversity and mitigating climate change. Under the Conservation Reserve Program (CRP), landowners plant longleaf pine on farmlands and pasturelands in exchange for annual payments and other financial incentives. While the introduction of this program was an important step towards longleaf pine restoration, there exists a necessity to understand how the decisions of landowners to enroll in CRP are manifested over space. An understanding about the role of a range of factors on the spatial density of longleaf pine plantations enrolled under CRP would help in prioritizing locations for longleaf pine plantations, thereby increasing the efficacy of conservation-related resources. We evaluate the effects of socioeconomic, topographic, and distance variables on the spatial density of longleaf plantations enrolled under CRP using clustered point process model in Georgia, a state with 47% of the total acreage under CRP-supported longleaf plantations. Only 30% of the current longleaf pine locations under CRP were within the Significant Geographic Area. About 86% of current longleaf plantations under CRP are present on former croplands and pasturelands. The spatial density of longleaf pine plantations is negatively associated with the distance from cropland and pastureland and positively associated with land capability classes, and distance from the sawmills. Longleaf pine restoration efforts should focus on those croplands or pasturelands which are closer to existing CRP-supported plantations, located on lower soil capability classes, and are far from wood consuming mills. Our study would support current programs that are supporting longleaf pine restoration in the Southern United States.
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