Journal
CLEAN-SOIL AIR WATER
Volume 40, Issue 10, Pages 1154-1158Publisher
WILEY
DOI: 10.1002/clen.201100743
Keywords
Germination; Hydrological relationship; Phragmites australis; Seawater intrusion; Wetland restoration process
Categories
Funding
- Knowledge Innovation Program of the CAS [kzcx2-yw-223]
- National Natural Science Foundation for Distinguished Young Scholar of Shandong Province [JQ201114]
- CAS/SAFEA international partnership program for creation research team
- Project of National Science & Technology Pillar Program in 12th Five Year period [2011BAC02B01]
Ask authors/readers for more resources
Phragmites australis, a perennial herb and a widespread species, is widely distributed in coastal wetland in the Yellow River Delta. Laboratory experiments were carried out to assess the effects of water and salinity on seed germination of P. australis and recovery response after seed transferred to distilled water. The germination responses of seeds were determined over a wide range of salinities of 0, 0.5, 1, 2, 2.5, and 3% and water depths of 0, 2, 4, 6, 8, 10, and 15?cm. Final percent germination and germination speed except for at 0.5% salinity treatment were decreased with increasing salinities. Lower salinity (0.5%) could stimulate germination of P. australis, while seed germination was nearly inhibited completely at salinity 3%. P. australis percent germination was decreased with water depth increasing except 2?cm water depth treatment. Percent germination and speed were great and fast at lower water depth. After end of the recovery period, the final percent germination of P. australis after high salinity treatments (2, 2.5, and 3%) was up to 80%, while those after low salinity treatments were lower than 1%, and percent germination after different water depth treatments was zero. The results indicate that it is possible to accelerate the degraded coastal wetland restoration process of P. australis population by sexual ways in the Yellow River Delta.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available