[Altitudinal patterns of flower plant biomass on alpine and subalpine meadow in Balang Mountains].
A field survey was conducted to study the altitudinal patterns of flower plant biomass on alpine and subalpine meadow in Wolong Nature Reserve in Balang Mountains, and the soil factors were analyzed. With the increase of altitude, the aboveground biomass, including the biomass of flower-fruit, stem, and leaf, varied in unimodal and peaked at 3500 m a. s. l., the belowground biomass varied in U-shape, the soil acidity and the contents of soil hydrolyzable N and total K increased significantly, whereas the contents of soil organic matter, total N, and available P had a significant decrease. The aboveground biomass of the flower plants increased significantly with increasing soil pH and soil total N and available K contents, and the belowground biomass of the plants increased significantly with increasing soil organic matter and available P contents but decreased significantly with increasing soil total K and hydrolyzable N contents.
College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. sunsmilecaicai@163.com
Lei
L
Cai
Xing-Liang
XL
Liu
Fei
F
He
Hua
H
Fan
Hong-Li
HL
Pan
Yuan-Zhi
YZ
Pan
D000531:Altitude; D018533:Biomass; D002681:China; D017753:Ecosystem; D035264:Flowers / Q000254:growth & development*; D006109:Poaceae / Q000254:growth & development*; D012987:Soil / Q000032:analysis; D014197:Trees / Q000254:growth & development*
D012987:Soil