Merino J, Field C, Mooney H A
Department of Biological Sciences, Stanford University, 94305, Stanford, California, USA.
Oecologia. 1982 Jan;53(2):208-213. doi: 10.1007/BF00545665.
Gas exchange and leaf growth analysis were used in conjunction to determine leaf-construction and maintenance costs in three co-occurring shrubs of the california chaparral, one evergreen, Heteromeles arbutifolia, and two drougth deciduous species, Lepechinia calycina, and Diplacus aurantiacus. The construction costs per unit of leaf weight were similar among the three species and very close to values reported for other evergreens but considerably higher than leaf construction costs for other deciduous or herbaceous plants. Maintenance costs per unit of leaf weight were significantly greater in one deciduous species, L. calycina, than in the evergreen. Maintenance costs for all species were in the range reported for herbaceous species and considerably above those reported for other evergreens.
气体交换和叶片生长分析相结合，用于确定加利福尼亚丛林中三种共生灌木的叶片构建和维持成本，一种是常绿灌木，即山楂叶石楠，另外两种是旱季落叶物种，即萼花石蚕和橙黄钓钟柳。三种物种单位叶重的构建成本相似，与其他常绿植物报道的值非常接近，但远高于其他落叶或草本植物的叶片构建成本。单位叶重的维持成本在一种落叶物种萼花石蚕中显著高于常绿物种。所有物种的维持成本都在草本物种报道的范围内，且远高于其他常绿植物报道的成本。
