@book{furiness_cowling. e._l._r._d._k._campbell_2011, title={Forests as an alternative for poultry manure application}, volume={AG-739}, journal={Technical Report}, author={Furiness, C. and Cowling. E., Allen and L., Abt and R., Frederick and D., Zering and K. and Campbell, R.}, year={2011} }
 @article{simons_blount_campbell_hubbard_goodwin_devine_benoit_2007, title={Decreases in anxiety associated with participation in a camp for children with cardiac defects}, volume={17}, ISSN={["1467-1107"]}, DOI={10.1017/S1047951107001485}, abstractNote={Abstract The aim of our study was to examine psychosocial changes associated with participation in a camp for children with cardiac defects. We enrolled 29 children with cardiac defects aged from 8 to 18 years, along with their parents. Both the parents and the children completed measures of expectations for the camp and anxiety. Analyses of repeated measures indicated that levels of anxiety amongst the children decreased significantly at the end of camp when compared to its beginning. Levels of anxiety amongst the children were not statistically different at follow-up. Anxiety amongst the parents concerning the separation from their children also decreased at follow-up when compared to before the camp. Higher levels of anxiety reported by the children prior to the camp were associated with greater anxiety amongst the parents concerning the anticipated separation, more negative parental expectations of the camp, fewer experiences of separation from their children, and lower expectations by the children for the camping experience. Reductions in anxiety amongst the children following the camp were associated with negative parental expectations about the camping experience. The camping environment can provide a naturalistic exposure to new experiences for the child, and a successful separation for the parent, thereby promoting confidence amongst the parents in the ability of their children to function independently.}, number={6}, journal={CARDIOLOGY IN THE YOUNG}, author={Simons, Laura E. and Blount, Ronald L. and Campbell, Robert and Hubbard, Amanda and Goodwin, Betsy and Devine, Katie and Benoit, Megan}, year={2007}, month={Dec}, pages={631–637} }
 @article{svensson_mckeand_allen_campbell_1999, title={Genetic variation in height and volume of loblolly pine open-pollinated families during canopy closure}, volume={48}, number={3-4}, journal={Silvae Genetica}, author={Svensson, J. C. and McKeand, S. E. and Allen, H. L. and Campbell, R. G.}, year={1999}, pages={204–208} }
 @article{amatya_gilliam_skaggs_lebo_campbell_1998, title={Effects of controlled drainage on forest water quality}, volume={27}, ISSN={["0047-2425"]}, DOI={10.2134/jeq1998.00472425002700040029x}, abstractNote={The effects of controlled drainage (CD) on hydrology and water quality are presented for three eastern North Carolina watersheds in loblolly pine (Pinus taeda L.). Timing of CD treatments were: the spring fish recruitment period in the downstream estuary in one watershed, and the summer-fall period to facilitate tree growth in another watershed. A third watershed was maintained under conventional drainage throughout the study. It was demonstrated that seasonal controlled drainage can reduce both the total drainage outflows and corresponding sediment and nutrient exports. For example, CD reduced drainage outflows by as much as 88% during the summer-fall and 39% during the spring with annual average reduction of 20 to 25%. Annual average total phosphorus (TP) and ammonium-nitrogen (NH 4 -N) exports from watersheds under treatment were reduced by 7 to 72% as compared to the watershed under conventional drainage. For other nutrients and total suspended solids (TSS), concentrations were significantly different (α = 0.05) among the three watersheds during the winter when they were all under conventional drainage. This indicated characteristic differences unrelated to applied treatments. Taking these differences into account, the reductions in annual average export of TSS (up to 47%) and nitrate plus nitrite-nitrogen (NO 3 +NO 2 -N) (up to 16%), total Kjeldahl nitrogen (TKN) (up to 45%) and total organic carbon (TOC) (up to 33%) from watersheds under treatment were directly attributed to reduction in outflows. Even though CD appeared to have increased concentrations of some of the nutrients analyzed, except for NH 4 -N, the applied treatments lowered the export of TSS and most nutrients measured. It is concluded that CD can be used to reduce TSS and nutrient exports from pine plantations, primarily through reduced drainage outflows.}, number={4}, journal={JOURNAL OF ENVIRONMENTAL QUALITY}, author={Amatya, DM and Gilliam, JW and Skaggs, RW and Lebo, ME and Campbell, RG}, year={1998}, pages={923–935} }