Changes and influence factors of soil matrix infiltration in Chinese fir plantations with different stand ages in northern Guangxi

• Published in: Ying yong sheng tai xue bao Vol. 35; no. 4; p. 1007
• Main Authors: Yang, Meng-Ge, Deng, Ying-Ying, Lei, Zhen, Liao, Yu-Liang, Rong, Qing-Biao, Tan, Qing-Fang, Wu, Yuan-Huan, Huang, Yu-Han
• Format: Journal Article
• Language: Chinese
• Published: China 18.04.2024
• Subjects: Abies - growth & development; China; Cunninghamia - growth & development; Ecosystem; Soil - chemistry; Time Factors; Water - analysis; China; soil property; forest management measure; plantation; infiltration
• ISSN: 1001-9332
• DOI: 10.13287/j.1001-9332.202404.005

Soil matrix infiltration is an important pathway for plantations to obtain water, which affects ecological benefits and water conservation function of plantations. The changes of soil matrix infiltration and its influencing factors in different growth stages of Chinese fir plantations remain unclear. We measured soil matrix infiltration process using a tension infiltrometer in Chinese fir plantations (5, 8, 11, and 15 years old) of Beijiang River Forest Farm in Rongshui, Guangxi, and analyzed soil basic physicochemical properties to identify the dominant factors influencing soil matrix infiltration. The results showed that initial infiltration rate, stable infiltration rate, and cumulative infiltration increased with stand ages. The ranges of different stand ages were 141-180 mm·h , 109-150 mm·h , and 188-251 mm, respectively. The initial infiltration rate, stable infiltration rate, and cumulative infiltration were significantly positively correlated with soil capillary porosity, soil organic matter, soil wat