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Response of leaf functional traits to soil nutrients in the wet and dry seasons in a subtropical forest on an island.
Zhang, Juanjuan; Liang, Minxia; Tong, Sen; Qiao, Xueting; Li, Buhang; Yang, Qiong; Chen, Ting; Hu, Ping; Yu, Shixiao.
Afiliación
  • Zhang J; School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China.
  • Liang M; Research Institute of Sun Yat-sen University in Shenzhen, Shenzhen, China.
  • Tong S; School of Ecology/State Key Laboratory of Biocontrol, Sun Yat-sen University, Shenzhen, China.
  • Qiao X; School of Ecology/State Key Laboratory of Biocontrol, Sun Yat-sen University, Shenzhen, China.
  • Li B; School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China.
  • Yang Q; Research Institute of Sun Yat-sen University in Shenzhen, Shenzhen, China.
  • Chen T; School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China.
  • Hu P; Research Institute of Sun Yat-sen University in Shenzhen, Shenzhen, China.
  • Yu S; School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China.
Front Plant Sci ; 14: 1236607, 2023.
Article en En | MEDLINE | ID: mdl-38143586
ABSTRACT

Introduction:

Island ecosystems often have a disproportionate number of endemic species and unique and fragile functional characteristics. However, few examples of this type of ecosystem have been reported.

Methods:

We conducted a comprehensive field study on Neilingding Island, southern China. The leaf samples of 79 subtropical forest tree species were obtained and their functional traits were studied in the dry and wet seasons to explain the relationships between plant functional traits and soil nutrients.

Results:

We found a greater availability of soil moisture content (SMC) and nutrients in the wet season than in the dry season. The values of wet season soil available phosphorus (5.97 mg·kg-1), SMC (17.67%), and soil available potassium (SAK, 266.96 mg·kg-1) were significantly higher than those of the dry season. The leaf dry matter content, specific leaf weight, leaf density, leaf total carbon, leaf total nitrogen, leaf total calcium, and the N/P and C/P ratios of leaves were all significantly higher in the dry season than in the wet season, being 18.06%, 12.90%, 12.00%, 0.17%, 3.41%, 9.02%, 26.80%, and 24.14% higher, respectively. In contrast, the leaf area (51.01 cm2), specific leaf area (152.76 cm2·g-1), leaf water content (0.59%), leaf total nitrogen (1.31%), leaf total phosphorus (0.14%), and leaf total magnesium (0.33%) were much lower in the dry season than in the wet one. There were significant pairwise correlations between leaf functional traits, but the number and strength of correlations were significantly different in the dry and wet seasons. The SAK, soil total phosphorus (STP), and pH impacted plant leaf functional traits in the dry season, whereas in the wet season, they were affected by SAK, STP, pH, and NO3- (nitrate).

Discussion:

Both soil nutrients and water availability varied seasonally and could cause variation in a number of leaf traits.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Plant Sci Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Plant Sci Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza