کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5050238 | 1476399 | 2012 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Economical sustainability of pinestraw raking in slash pine stands in the southeastern United States Economical sustainability of pinestraw raking in slash pine stands in the southeastern United States](/preview/png/5050238.png)
Raking pinestraw for use as landscape mulch has gained popularity over the last two decades in the southern U.S. as an intermediate income source for forest landowners, despite uncertainties associated with its long term impact on soil fertility. A Reed model was utilized to ascertain the effects of pinestraw raking on the profitability of slash pine stands. A model that estimates yearly needlefall was employed to determine the nutrient removals due to pinestraw raking. The land expectation value (LEV) for the intensively yearly raked unthinned and thinned stands was $6091 haâ 1 and $5142 haâ 1, respectively. Corresponding removals of carbon (C) and nitrogen (N) were 12 Mg haâ 1 and 233 kg haâ 1, and 11 Mg haâ 1 and 182 kg haâ 1 for unthinned and thinned stands, respectively. Stands intensively managed for pinestraw raking were more profitable than those extensively managed, although nutrient removals were greater under the intensive management scenario. Extensively managed and raked stands were more efficient in terms of nutrient removal and economic revenues. From a land stewardship perspective, managing for pinestraw on higher productivity stands may be more efficient in terms of realizing increased economic returns for similar levels of nutrient removal.
âºWe model the effects of pinestraw raking on the profitability of slash pine stands. âºWe estimate nutrient removals due to pinestraw raking. âºStands intensively managed for pinestraw raking are more profitable than those extensively managed. âºNutrient removals are greater under intensive forest management. âºLandowners might be inclined to rake less frequently and plant in forestlands with higher potential productivity.
Journal: Ecological Economics - Volume 80, August 2012, Pages 89-100