Evaluation of the Effect of Composite Mixed Groundcover Grass Combination on Ecological Restoration of Saline-alkali Land
The purpose of this paper is to analyze the current situation of ecological restoration and improvement of coastal saline-alkali land in China,and to explore its influencing factors and coping strategies.By combing through the relevant literature and research,we found that although some progress has been made in the research on the ecological restoration of saline-alkali land at home and abroad,there are still some problems and challenges.In order to cope with these problems and challenges and improve the ecological and economic benefits of saline-alkali land restoration,this paper proposed a composite plant habitat measure of different proportions by introducing alfalfa and mixing two saline-alkali tolerant plants,Suaeda salsa and Amacantha sativa.Through the study of the changes of organic matter and pH in the experimental plots,it was found that the organic matter benefit of alfalfa mixed with A.sangis at 2∶1 was better than 13.45 g/kg,and the effect on soil improvement was the most obvious,and the comprehensive effect was the best.
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