关键词: 水稻, 活性氧清除酶系, 钙, 抗逆性

Abstract: Vegetation restoration is a basic and strategic engineering measure for the reconstruction of abandoned land and the prevention of soil erosion, while the dynamic characteristics of species diversity in the vegetation restoration can reflect the degree of vegetation recovery. By using closure and infiltration storage regulated supply (CSR) engineering as the applied restoration background, and with the geotechnical residue field of Jinping Hydropower Station as test object, the dynamic characteristics of vegetation communities in the field were studied through community investigation and diversity analysis. The plants selected at the early stage of vegetation recovery generally showed good adaptat
ion to the environment, with legumes being the dominant in the community. The species of Gramineae, Compositae, and other perennial herbaceous plants increased gradually with time, and played important roles in maintaining community function. There was a close correlation between community dynamics and species diversity. With the process of succession, the community composition, diversity, and evenness increased, while ecological dominance decreased.

Key words: Rice, Active oxygen eliminating enzyme system, Calcium, Stress resistance