方怡然, 蔡金桓, 李洁, 薛立. 加勒比松纯林混交改造阔叶树种叶片的养分和光合特性研究[J]. 西南林业大学学报, 2018, 38(2): 30-36. DOI: 10.11929/j.issn.2095-1914.2018.02.005
引用本文: 方怡然, 蔡金桓, 李洁, 薛立. 加勒比松纯林混交改造阔叶树种叶片的养分和光合特性研究[J]. 西南林业大学学报, 2018, 38(2): 30-36. DOI: 10.11929/j.issn.2095-1914.2018.02.005
Yiran Fang, Jinhuan Cai, Jie Li, Li Xue. Nutrient and Photosynthetic Characteristics of Broadleaved Tree Species in Mixed Growth of A Pure Pinus caribaea Plantation[J]. Journal of Southwest Forestry University, 2018, 38(2): 30-36. DOI: 10.11929/j.issn.2095-1914.2018.02.005
Citation: Yiran Fang, Jinhuan Cai, Jie Li, Li Xue. Nutrient and Photosynthetic Characteristics of Broadleaved Tree Species in Mixed Growth of A Pure Pinus caribaea Plantation[J]. Journal of Southwest Forestry University, 2018, 38(2): 30-36. DOI: 10.11929/j.issn.2095-1914.2018.02.005

加勒比松纯林混交改造阔叶树种叶片的养分和光合特性研究

Nutrient and Photosynthetic Characteristics of Broadleaved Tree Species in Mixed Growth of A Pure Pinus caribaea Plantation

  • 摘要: 在加勒比松林纯林的株间和行间插种黧蒴锥、大叶相思、桂木和油茶(G1),以及插种荷木、光叶山矾、竹节树和油茶(G2),研究这2种改造模式下阔叶树种叶片的养分和光合特性。结果表明:在G1阔叶树种中,大叶相思和桂木的叶片氮、磷、钾含量高,而G2中竹节树叶片的氮、磷、钾含量均最高;G1阔叶树种的净光合速率、植物气孔导度、胞间二氧化碳浓度及植物蒸腾速率均表现为大叶相思>桂木>黧蒴锥>油茶,而在G2中表现为荷木>油茶>竹节树>光叶山矾。因此,大叶相思、桂木和荷木是本试验中优良的林分改造树种。

     

    Abstract: Castanopsis fissa, Acacia auriculiformis, Artocarpus nitidus subsp. lingnanensis and Camellia oleifera were planted among rows and lines in one part of pure Pinus caribaea stand(G1), Schima superba, Symplocos lancifolia, Carallia brachiata and Camellia oleifera were planted in another part of the pure Pinus caribaea stand (G2). The nutrient and photosynthetic characteristics of broad-leaved tree species in these 2 remodeling modes were studied. Results showed that N, P, K concentrations in leaves of Acacia auriculiformis and Artocarpus nitidus subsp. lingnanensis at G1 plot were high and the same as leaves of Carallia brachiata among at G2 plot. Net photosynthetic rate, stomatal conductance, intercellular CO2 concentration and transpiration rate decreased in the order of Acacia auriculiformis > Artocarpus nitidus subsp. lingnanensis > Castanopsis fissa > Camellia oleifera at G1 plot, and in the order of Schima superba > Camellia oleifera > Carallia brachiata > Symplocos lancifolia at G2 plot. The above results indicated that Acacia auriculiformis, Artocarpus nitidus subsp. lingnanensis and Schima superba were excellent tree species for stand transformation.

     

/

返回文章
返回