特征指示种花粉雨研究，对古生态环境重建也具有重要的意义。
The study on pollen rain of characteristic indicator species has important significance for reconstructing paleo_ecological environment.
水分是制约黄土高原地区植被恢复与生态环境重建的决定性因子。
Water is the crucial factor influencing vegetation restoration and eco environmental reconstruction in Loess Plateau region.
恢复西部原有良好生态环境，进行西部生态环境重建具有重大意义。
It has great significance of renew and reconstructed the original ecological environment of western.
应用推荐