![]() ![]() Our results indicated that different vegetation restoration patterns and soil depths had significant effects on the soil nutrients and stoichiometry in the alpine region of the Loess Plateau. Furthermore, soil fertility was limited by N. Moreover, the SOC and TN showed the strongest correlation with the soil stoichiometry (except P:K ratio) thus, C and N had the greatest effect on the soil stoichiometry. Additionally, the soil nutrients (except TK) of all vegetation types and stoichiometry of PR and GL (except the N:P ratio of GL) were greater at 0–20 cm than at 20–60 cm. The TN content and N:P and N:K ratios of GL were higher than those of WF in each soil layer. In all soil layers, the soil organic carbon (SOC), total nitrogen (TN), soil available nitrogen and potassium (AN and AK, respectively) and C:P, C:K, N:P and N:K ratios of FL were higher than those of GL and WF. To clarify these soil stoichiometry changes, a 0–60 cm soil profile was sampled from two typical vegetation restoration patterns: grassland (GL) and forestland (FL), including Picea crassifolia (PC), Larix principis-rupprechtii (LR), Populus cathayana (PR) and Betula platyphylla (BP). ![]() However, soil stoichiometry changes under different vegetation restoration patterns and at different soil depths remain poorly understood in the alpine region of the Loess Plateau. Christopher Bell, Dalton Sargeant, David Mayhew, Noah Gragson, James Bickford, Chris Eggleston, Gracin Raz, Johnny White, Brett Thompson, Christian McGhee, Alex Schutte, Carlos Vieira, Hannah Newhouse, Ryan Partridge, Thomas Martin, Jack Sellers, Rich DeLong III, Matt Levin, Rob Powers, Luis Tyrrell, Justin Funkhouser, Nicole Behar, John Wood, Scott Ivie, Bobby Hillis, Jr., Johnny Borneman, III, Ron Norman, Brandon McReynolds, Andrew Porter, Todd Souza, Dustin Ash, Dylan Jones, Christian Celaya, Duane Hunt, Bill Kann, Buddy Shepherd, Rodd Kneeland, Dylan Caldwell, Justin Haley, William Byron, Austin Dillon, Cole Custer, Trevor Bayne, Matt Tifft, Kaz Grala, Michael Shawhan, Tom Klauer, Jim Weiler, Dave Smith, Jim Inglebright, Tim Spurgeon, Kyle Kelley, Blake Williams, Braeden Havens, Jesse Iwuji, Jack Nugent, Clayton Green, Colton Nelson, Trevor Cristiani, Harrison Burton, Blaine Perkins, John Newhouse, Johnny Moore, Cole Moore, Dylan Capello, Todd Gilliland, Landon Cassill, Travis Miller, Ronnie Bassett Jr.The Grain-for-Green project is an important ecological restoration measure to address the degradation of alpine ecosystems in China, which has an important impact on the ecological stoichiometry of soil carbon (C), nitrogen (N), phosphorus (P) and potassium (K). ![]()
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