CAJ | 학술논문

　　通过对河曲马场不同封育年限的退化沼泽湿地植物群落调查，采用优势度指数、丰富度指数、Shannon-Wiener多样性指数、均匀度指数及其相关性，研究河曲马场退化沼泽湿地植物群落的生物多样性及地上生物量的变化规律。结果表明：（1）地上生物量随着封育年限的延长呈增长趋势，但封育2年达到最大值后开始减少。（2）随着封育年限的延长，优势度指数逐渐降低，丰富度指数几乎没有变化，均匀度指数和Shannon-Wiener多样性指数逐渐增大，即该群落的生物多样性指数逐渐增大。（3）均匀度与Shannon-Wiener多样性指数表现了较高的相关性，这说明物种数在一定范围的前提下，均匀度是增加群落多样性的重要因子。
　　통과대하곡마장불동봉육년한적퇴화소택습지식물군락조사，채용우세도지수、봉부도지수、Shannon-Wiener다양성지수、균균도지수급기상관성，연구하곡마장퇴화소택습지식물군락적생물다양성급지상생물량적변화규률。결과표명：（1）지상생물량수착봉육년한적연장정증장추세，단봉육2년체도최대치후개시감소。（2）수착봉육년한적연장，우세도지수축점강저，봉부도지수궤호몰유변화，균균도지수화Shannon-Wiener다양성지수축점증대，즉해군락적생물다양성지수축점증대。（3）균균도여Shannon-Wiener다양성지수표현료교고적상관성，저설명물충수재일정범위적전제하，균균도시증가군락다양성적중요인자。
Based on the survey of plant community of degradation swamp wetland with different enclosed years, in Hequ stud-farm. The rule of species diversity and above-ground biomass was analyzed by the species dominance indices, richness indices, Shannon-Wiener diversity indices and evenness indices. Results indicated that: (1) The above-ground biomass had the trend of increasing with the longer enclosed time, but got the maximum after 2 years, and then decreasing. (2) With the longer enclosed time, the dominance indices dropping off, richness indices almost no change, while the Shannon-Wiener diversity indices and evenness indices increasing. It means that the species diversity gradually increasing. (3) There was a positive linear relationship between the evenness indices and Shannon-Wiener diversity indices. Evenness was an important factor to increase species diversity under the premise that the number of species in a certain range.