水土保持优势植物生长的分析研究

在第四纪红粘土水土流失区水土保持坡面绿化实践中。总结出实现生物多样性的植物群落组合系列。主要有刺槐-胡枝子-百喜草系列；柏木-紫穗槐-长叶画眉草系列；木荷-胡枝子-假俭草系列；樟-多花木兰-百喜草系列；枫香-胡枝子-百喜草系列等。生物多样性群体的建立有利于增大环境容量，抑制植物虫害发生和缓解植物的早衰现象发生。利用优选植物种实现土壤流失坡面绿化，必须采用正确的实施方法，而公顷施750～1125kg钙镁磷肥是不可缺少的。

Analysis and Study on Vegetation Growth in Soil and Water Conservation

In the practice of soil and water conservation on soil loss region with quaternary red clay patent,some series of vegetation community realizing biodiversity have been concluded.There are mainly as follows:Locus-laspedeza bicolor-bashia grass;Cypress-amorpha fruticosa-eragrostis clongata Schima suberba-laspedeza bicolor-erichloa ophiuroides;Camphor tree-magnolia-bashia grass;chinese sweet gum-laspedeza bicolor-bashia grass,etc..The establishment of the vegetation community with biodiversity is to the advantage of enlargement of environment capacity, curb of vegetation disease and insect attack and alleviation of vegetation pre-decline phenomenon.Using optimization of varieties for restoring vegetation coverage,the eroded slope surface could be greened with application of 750-1 125kg/hm² Ca-Mg-P-fertilizer.