Leaf functional traits of different forest communities in Ziwuling Mountains of Loess Plateau
A comparative study was made on the leaf functional traits of the plant species whose importance value is >0. 1 in five main forest communities in Ziwuling Mountains of the Loess Plateau. For the test plant species, their leaf dry matter content ( LDMC) had significant nega-tive correlation with specific leaf area ( SLA) , SAL was significantly negatively correlated with leaf thickness ( LT) but positively correlated with leaf nitrogen content ( LNC) and leaf phosphor-us content (LPC) , LT was significantly negatively correlated with LNC, LPC, and leaf potassium content (LKC) , and there were significant positive correlations among LKC, LPC, and LNC. Slope position was the main terrain factor affecting leaf size, LT, and LNC, elevation had greater effects on LPC and SLA, while slope direction was the main factor affecting LDMC. The relation-ships among the leaf functional traits and the adaptation of the leaf functional traits to terrain fac-tors showed the ecological strategy of the plant species. The leaf functional traits of the plant spe-cies in tree layers of the forest communities had significant differences, those in shrub layers had little difference, and the leaf functional traits except LDMC of the plant species in herbage layers had significant differences. Our results suggested that the leaf functional traits of forest community depended on the leaf functional traits of the plant species in the community, and on the impor-tance value of the plant species.
国家科技期刊平台
NSTL
万方数据
维普
