人工生草對(duì)干熱河谷區(qū)芒果園雜草多樣性和群落結(jié)構(gòu)的影響

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中圖分類號(hào)：S667.7 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-0435（2025）04-1228-11

Abstract：To analyze the efects of artificial grass on weed diversityand community structure in Mango orchard， fiveleguminous grasss，Stylosanthes guianensis， Indigofera hendecaphylla，Medicago satiua，Trifolium pratense and Macroptilium lathyroides，were used to carry out grassing experiments in Mango orchard，and natural grass treatment in Mango orchard was used ascontrol. The efects of artificial grass on the niche，diversity， community structure similarityand functional groups of weeds in Mango orchard were studied.The results indicated that，compared to natural grass cover，al five artificial grassing models effectively reduced the biomass， species count，individual count，and ACE（Abundance-based Coverage Estimator） values of weeds in mango orchard，while enhancing the weed diversity in the dry-hot valleyregions.The introduction of artificial grassing impacted the niche breadth and overlap of weeds in Mango orchard，altering their ecological niches，functional groups，and community structures，and increased the ecological stability oftheorchards. Among the fiveartificial grassing models，the Indigofera hendecaphylla grassing model exhibited higher weed diversity and lower weed biomass， making it the most ideal weed management strategy for mango orchard in the dry-hot valley region.

Key words：Orchard grass；Mango orchard； Weed diversity；Community structure

雜草防控是果園管理中存在的難題，果園雜草防治不當(dāng)，會(huì)導(dǎo)致雜草叢生，病蟲害頻發(fā)，嚴(yán)重則影響果樹的生長(zhǎng)和產(chǎn)量[1]。（剩余14179字）