Open AccessDistribution characteristics of surface soil organic carbon in different land types in the loess hilly region
Author(s) -
Tao Meng,
Jinbao Liu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/804/2/022109
Subject(s) - loess , environmental science , orchard , grassland , soil carbon , land use , total organic carbon , watershed , soil series , soil science , soil horizon , soil water , agronomy , soil classification , hydrology (agriculture) , geology , environmental chemistry , ecology , chemistry , geomorphology , biology , machine learning , computer science , geotechnical engineering
Management of land and soil resources is important in the loess hilly region to explore the change characteristics of soil organic carbon in different land types. Four major land use types, including jujube orchard, 7-yr-old grassland, Cropland, and 30-yr-old grassland, were selected to study the distribution characteristics of soil organic carbon content from 0-100 cm in the small watershed of Yuanzegou watershed in the loess hilly region. The results showed that the soil organic carbon content of different land use types decreased with soil layer increasing. The contents of soil organic carbon at different depths were as follows: 7-yr-old grassland < Cropland < jujube orchard < 30-yr-old grassland, and there were significant differences among different land use types in 0-20 cm soil layer (P<0.05).