Open AccessGrowth performance of eucalypts and acacia seedling under elevated CO2 load in the changing environment
Author(s) -
Eka Novriyanti,
Makoto Watanabe,
Qiaozhi Mao,
Takayoshi Katsuda
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 - 10.1088/1755-1315/918/1/012030
Subject(s) - acacia auriculiformis , acacia , acacia mangium , nutrient , seedling , eucalyptus , biology , horticulture , botany , ecology
Acacia and Eucalypt are important species in the global forest plantations. The resilience of those species under the changing environment would define their significance in the dynamic of forest plantation. This study was aimed to provide information on the growth performance of two acacias and two eucalypts seedlings under elevated CO 2 concentrations. The seedlings of A. auriculiformis, A. mangium , E. camadulensis, and E. urophylla were subjected to two levels of CO 2 and two levels of nutrient supply in the FACE system in Sapporo Experimental Forest, Japan. The eucalypts showed significantly higher growth performance than the acacias. The nutrient addition significantly increased the growth, yet the CO 2 and interaction between CO 2 and nutrients were not significantly different. LMA was not significantly affected by the elevated CO 2 and nutrient addition. Although nutrients significantly affected the C/N in the eucalypts, they showed no different effect on the acacias. As expected, N mass and N area were higher in the acacia than those in the eucalypts, although no significant responses were shown to elevated CO 2 and nutrient addition. The tested acacia and eucalypts showed relatively insensitivity to elevated CO 2 . Thus they might possess resilience capacity under the keep increasing level of the atmospheric CO 2 concentration.