Effects of Different Land Use Patterns on Soil Physicochemical Properties in the Loess Plateau Area

• Published in: Shui tu bao chi xue bao Vol. 38; no. 5; pp. 192 - 202
• Main Authors: ZHANG Mengyue, ZHANG Zhaowei, YANG Yixuan, ZHANG Limin, LI Ruxiang, HAN Xiaoyang, LIN Wen
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Journal of Soil and Water Conservation 01.10.2024
• Subjects: land use patterns; long-term positioning; soil physical and chemical properties; the loess plateau area
• ISSN: 1009-2242
• DOI: 10.13870/j.cnki.stbcxb.2024.05.009

[Objective] In order to explore the effects of different land use patterns on soil physicochemical properties in the Loess Plateau area. [Methods] This study used bare land as a control (CK), and set four different use patterns as conventional fertilization farmland (H), unfertilization farmland (L), and alfalfa grassland (A) in Changwu, Shaanxi Province since 2005. The physical and chemical properties of 0—200 cm soil in the four plots were determined in July 2021. [Results] After 17 years, there were significant differences between farmland and grassland on soil physicochemical properties. (1) In 0—40 cm soil surface, the volume fraction of clay and powder in alfalfa field slightly increased compared with the other three plots, the volume fraction of sand slightly decreased, while the proportion of clay and fine powder in bare field decreased. (2) In the 0—20 cm of the soil, compared to bare land, soil pH significantly increased by 0.8% in alfalfa grassland, and significantly decreased by 1.7% in fertilized