Amendment of saline-alkali soils promotes the formation and stability of iron-bound organic carbon

Description

This dataset presents the raw data on the physicochemical properties and microbial communities of saline-alkali soil before and after amendment. Soil samples was collected in April 2023 at Hongxing Farm, Songyuan City, and included the following treatments: saline-alkali soil without amendment (CK), soil amended with desulfurized gypsum for one year (T1-1) and three years (T1-3), and soil amended with PASP-Ca for one year (T2-1) and three years (T2-3).

Steps to reproduce

Soil samples were collected from the topsoil layer at a depth of 0 to 20 cm. Five sampling points were set following the five-point sampling method. Specifically, five samples were collected in the CK treatment, and ten samples were collected respectively in the T1 and T2 treatments. Among them, five samples were collected in each of the one-year and three-year improvement treatments. We used shovels and ring knives to collect samples. The samples collected using shovels were air-dried naturally, and the soils were sieved through a 2-mm mesh for the analysis of soil physicochemical properties. The samples collected using a ring knife were for the determination of soil bulk density (SBD) and soil water-stable aggregates.

Institutions

• China Agricultural University

Categories

Funders

• National Key Research & Development Program of China

  Grant ID: 2023YFD150050305
• “Double First-Class” project of the Ministry of Education of China

  Grant ID: 2024AC008

Licence