title: Effects of moso bamboo encroachment into native, broad-leaved forests on soil carbon and nitrogen pools.
abstract: Across southern China, Moso bamboo has been encroaching on most neighboring secondary broad-leaved forests and/or coniferous plantations, leading to the land cover changes that alter abiotic and biotic conditions. Little is known about how this conversion alters soil carbon (C) and nitrogen (N). We selected three sites, each with three plots arrayed along the bamboo encroachment pathway: moso bamboo forest (BF); transition zone, mixed forest plots (MF); and broad-leaved forest (BLF), and examined how bamboo encroachment affects soil organic C (SOC), soil total N, microbial biomass C (MBC), microbial biomass N (MBN), water-soluble organic C (WSOC), and water-soluble organic N (WSON) in three forests. Over nine years, moso bamboo encroachment leads to a decrease in SOC and total soil N, an increase in MBC and WSOC, and a decrease in MBN and WSON. Changes in soil C and N occurred mainly in the topsoil. We conclude that moso bamboo encroachment on broadleaved forest not only substantially altered soil C and N pools, but also changed the distribution pattern of C and N in the studied forest soils. Continued bamboo encroachment into evergreen broadleaved forests seems likely to lead to net CO2 emissions to the atmosphere as ecosystem C stocks decline.
authors.affiliation: Jiyang College, Zhejiang A &F University, Zhuji, Zhejiang 311800, PR China.|Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO 80523, USA.
authors.forename: Shangbin
authors.initials: S
authors.lastname: Bai
authors.affiliation: Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO 80523, USA.
authors.forename: Richard T
authors.initials: RT
authors.lastname: Conant
authors.affiliation: Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang A &F University, Linan, Zhejiang 311300, PR China.
authors.forename: Guomo
authors.initials: G
authors.lastname: Zhou
authors.affiliation: Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO 80523, USA.|Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang A &F University, Linan, Zhejiang 311300, PR China.
authors.forename: Yixiang
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Jiyang College, Zhejiang A &F University, Zhuji, Zhejiang 311800, PR China.
authors.forename: Nan
authors.initials: N
authors.lastname: Wang
authors.affiliation: College of Life Sciences, Hainan Normal University, Haikou, Hainan 571158, PR China.
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Li
authors.affiliation: Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang A &F University, Linan, Zhejiang 311300, PR China.
authors.forename: Kaiqiang
authors.initials: K
authors.lastname: Zhang
mesh_terms: D018533:Biomass; D002244:Carbon / Q000032:analysis*; D002681:China; D065928:Forests; D006801:Humans; D064307:Microbiota; D009584:Nitrogen / Q000032:analysis*; D006109:Poaceae / Q000254:growth & development*; D012987:Soil / Q000737:chemistry*
chemical_list: D012987:Soil; D002244:Carbon; D009584:Nitrogen