文档介绍：Variation of soil respiration from different land uses in Subtropical agricultural soils, Central
China

Shan Lin a, †, Ronggui Hu a, *, Minglei Feng a, Jinsong Zhao a, Ryusuke Hatano b
a College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, P R China
b Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9, Kita, Sapporo 060-8589, Japan.
*Corresponding author. Ronggui Hu
E mail address: †linshan2037@ *hronggui@

Abstract—In order to better understand the limiting worldwide is approximately % of the world’s total soil
factors and substrate affecting soil CO2 flux, we anic carbon, its turnover represents a significant
anic carbon, microbial biomass carbon, microbial contribution to the global carbon cycle [10].
biomass nitrogen, anic carbon, and dissolved This study explored to what extent the changes in DOS
organic nitrogen from seven sites of four land use types of (DOC and DON) and SMB (MBC and MBN) affect seasonal
subtropical agriculture soils. Objectives were to (1) evaluate variation of soil CO2 flux in different land uses in subtropical
the relationship of MBC, MBN, DOC, and DON with soil CO2 ecosystem. Different land use types in the Three Gorges
flux, in addition to the relationship obtained by usually used Reservoir Area (TGRA) provided an excellent opportunity to
environmen