|
| Responses of plant diversity and soil factors drivingto soil salinity in wetland of Ebinur Lake |
| |
| DOI： |
|
| Hits: 1667 |
| Download times: 870 |
| Abstract: |
| Taking the desert plant communities in wetland of Ebinur Lake，the National Nature Reserve inXinjiang，as study object，soil data including moisture，salinity，nutrient and community plot were investigated and theresponses of plant diversity and soil factors driving to soil salinity gradient were studied. The results showed that，underthe salt contents of 19.21-9.59 g/kg（S1）and 5.97-0.66 g/k g（S2），respectively，with the soil salt content decreased，plant life structure in community changed，the proportion of shrubs decreased，while herbaceous proportion increased.Under different salinity gradients，soil factors（except for total phosphorus，total potassium）had significant differences.The species diversity in high salinity habitat was generally higher than that in low salinity habitat，specifically，theMargalef index（R）showed sharp reduction over the salinity gradient，while Shannon-Wiener diversity index（H），Simpson index（D）and Pielou evenness index（J）did not significantly reduce. There was a significantly positivecorrelation between Shannon-Wiener diversity index（H），Simpson index（D）and soil total potassium content，Margalefrichness index（R）was significantly influenced by soil organic matter，salinity，pH，soil moisture，soil total nitrogencontent，there was no significant relationship between Pielou evenness index（J）and various soil factors. |
|
View Full Text
View/Add Comment Download reader |
