title: Spatial distribution of soil organic carbon stock in Moso bamboo forests in subtropical China.
abstract: Moso bamboo (Phyllostachys heterocycla (Carr.) Mitford cv. Pubescens) is an important timber substitute in China. Site specific stand management requires an accurate estimate of soil organic carbon (SOC) stock for maintaining stand productivity and understanding global carbon cycling. This study compared ordinary kriging (OK) and inverse distance weighting (IDW) approaches to study the spatial distribution of SOC stock within 0-60 cm using 111 soil samples in Moso bamboo forests in subtropical China. Similar spatial patterns but different spatial distribution ranges of SOC stock from OK and IDW highlighted the necessity to apply different approaches to obtain accurate and consistent results of SOC stock distribution. Different spatial patterns of SOC stock suggested the use of different fertilization treatments in Moso bamboo forests across the study area. SOC pool within 0-60 cm was 6.46 and 6.22 Tg for OK and IDW; results which were lower than that of conventional approach (CA, 7.41 Tg). CA is not recommended unless coordinates of the sampling locations are missing and the spatial patterns of SOC stock are not required. OK is recommended for the uneven distribution of sampling locations. Our results can improve methodology selection for investigating spatial distribution of SOC stock in Moso bamboo forests.
authors.affiliation: Key laboratory of Bamboo and Rattan, International Centre for Bamboo and Rattan, Beijing 100102, P.R. China.
authors.forename: Xiaolu
authors.initials: X
authors.lastname: Tang
authors.affiliation: Key laboratory of Bamboo and Rattan, International Centre for Bamboo and Rattan, Beijing 100102, P.R. China.
authors.forename: Mingpeng
authors.initials: M
authors.lastname: Xia
authors.affiliation: Departamento de Ingeniería Agroforestal, Universidad de Santiago de Compostela, Lugo 27002, Spain.
authors.forename: César
authors.initials: C
authors.lastname: Pérez-Cruzado
authors.affiliation: Key laboratory of Bamboo and Rattan, International Centre for Bamboo and Rattan, Beijing 100102, P.R. China.
authors.forename: Fengying
authors.initials: F
authors.lastname: Guan
authors.affiliation: Key laboratory of Bamboo and Rattan, International Centre for Bamboo and Rattan, Beijing 100102, P.R. China.
authors.forename: Shaohui
authors.initials: S
authors.lastname: Fan
mesh_terms: D002244:Carbon / Q000032:analysis*; D057486:Carbon Cycle; D002681:China; D002980:Climate; D017753:Ecosystem; D065928:Forests; D006109:Poaceae; D012987:Soil / Q000737:chemistry*; D062206:Spatial Analysis
chemical_list: D012987:Soil; D002244:Carbon