摘要
以人工沙打旺草地和永久草地为对照，研究了黄土丘陵区坡地退耕后天然草地植被自然演替过程中群落组成，地上、地下生物量增长动态特征。重点分析了群落地下部不同直径根系长度，表面积增加与恢复年限的关系。为定量分析植被因素与土壤抗冲性关系提供依据。
The community components, above and below ground biomass during natural vegetation succession in the retired slope cropland were studied in comparison with the artificial and permanent grassland in the loess area, and the relation between increasing of root length,root surface area in different diameter and the restoration period were analysed, which would provided the information on vegetation and soil anti-scourability relation research.
出处
《水土保持研究》
CSCD
1997年第S1期102-110,121,共10页
Research of Soil and Water Conservation
关键词
黄土高原
植被恢复
生物量
Loess Plateau vegetation restoration biomass
