2004•Journal of Gansu Forestry Science and TechnologyRequires access
Effect of Afforestation on the Forage Grass Biomass in the Arid Mountainous Areas of Qilian Mountains
Gaohong Zhu
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Abstract
The biomass of the forage and the edible biomass of afforestation bush trees species in arid mountainous afforestation areas of Qilian mountains were investigated. The result showed that the forage biomass increased greatly in soil preparation area. Its average productivity was 1.50～2.49 times as unpreparated ones. The eastern and the western hillside in enclosed area were 1.82 and 1.67 times as semi-enclosed area, 2.22 and 2.14 times as natural area. The forage bush trees' edible branches and leaves were 2.04～3.11 times as mono-grassland, its ground part was 5.30～7.60 times as grass'. Analysis of forage bush trees' nutrition content showed that developing forage bush, constructing stereo-grassland is an important way of the grass eco-construction in Qilian mountainous.