Effect of Planting Condition and Time on Survival Rate and Growth of Phragmites australis  

作　　者：LI Xiaoyu LIN Jixiang YANG Qun MU Chunsheng 

机构地区：[1]Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences [2]Institute of Grassland Science, Northeast Normal University [3]Alkali Soil Natural Environmental Science Center, Northeast Forestry University Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field,Ministry of Education

出　　处：《湿地科学》2015年第1期13-18,共6页Wetland Science

基　　金：Under the auspices of the National Natural Science Foundation of China(31100403);National Basic Research Program of China(No:2012CB956100)

摘　　要：The field trial was established to investigate the effects of planting condition(soil water content,soil buried depth,rhizome length)and time on the survival rate and growth of Phragmites australis rhizomes.The results indicated that survival rate and growth of Phragmites australis were affected by soil water content and rhizome length significantly,but not by soil buried depth.The survival rate of Phragmites australis in moist condition was higher than those in natural and flooding conditions.Rhizomes length did not affect survival rate,height and shoot number,but influenced biomass and buds number,which were higher with 15 cm length than those with 30 cm length.Based on the suitable soil water content(moisture)and rhizome length(15 cm),the survival rate of Phragmites australis was the highest when they were planted in May(91%)comparing to June and July.The number of shoots and buds were the highest in June,which had more suitable temperature and light for Phragmites australis to grow.Therefore,the optimizing transplanting condition of Phragmites australis was that rhizomes of 15 cm with some buds were planted in May with moisture(soil water content).The field trial was established to investigate the effects of planting condition（soil water content, soil buried depth, rhizome length） and time on the survival rate and growth of Phragmites australis rhizomes. The results indicated that survival rate and growth of Phragmites australis were affected by soil water content and rhizome length significantly, but not by soil buried depth. The survival rate of Phragmites australis in moist condition was higher than those in natural and flooding conditions. Rhizomes length did not affect survival rate, height and shoot number, but influenced biomass and buds number, which were higher with 15 cm length than those with 30 cm length. Based on the suitable soil water content（moisture） and rhizome length（15 cm）, the survival rate of Phragmites australis was the highest when they were planted in May（91%） comparing to June and July. The number of shoots and buds were the highest in June, which had more suitable temperature and light for Phragmites australis to grow. Therefore, the optimizing transplanting condition of Phragmites australis was that rhizomes of 15 cm with some buds were planted in May with moisture（soil water content）.

关 键 词：PHRAGMITES AUSTRALIS survival rate SOIL water content RHIZOME length SOIL BURIED depth PLANTING time 

分 类 号：Q945.3[生物学—植物学]