Study on different recover measures of degraded grassland in arid-hot valleys along the Jinshajiang River
The study on vegetation restoration technologies with the different recover measures in the degraded grassland of arid-hot valley along the Jinshajiang River showed that all measures performed positive effect. The effect order of treatments was fence+fertilizing> Setaria viridis+Festuca elata+Trifolium incar-natum + Leucaena leucocephala> Setaria viridis+Festure arundinacea+Coronilla varia + Trifolium repens> Festuca arundinacea + Lolium perenne + Medicago sativa + Leucaena leucocephala > Phleum pratense + Astragalus adsurgens+Lolium perenne + Trifolium incarnatum> control and zero fertilizing. There was positive correlation among the community diversity index, richness index and evenness index from time to space. The 6 treatments could be divided into 4 groups by cluster analysis,the control and zero fertilizing treatment was a se-perate group,this indicated that the seperate control and zero fertilizing treatment was still in the degraded situation and the proper protection should be carried out.
NETL
NSTL
万方数据
维普
