以黄土丘陵沟壑区不同土壤侵蚀程度下的猪毛蒿、铁杆蒿、茭蒿3种蒿属种子为研究对象,对3种植物种子产量与萌发特性进行了估算与观测,分析3种蒿类种子的产量、萌发率与土壤侵蚀程度的关系。结果表明:土壤侵蚀程度的不同,对种子产量与萌发率的影响很大,土壤侵蚀越严重,种子的有效性越低;同时,种子产量与种子的萌发率具有一致性,同一立地的种子产量高,其萌发率也高,说明种子的产量与萌发率对土壤侵蚀变化的响应是一致的。; The seed yield and seed germination characteristics of 3 Artemisia species i.e.Artemisia scoparia,Artemisia gmelinii and Artemisia giralaii under different soil erosion conditions were estimated and observed in the hilly-gullied Loess Plateau,and the relationship of seed yield and seed germination rate with soil erosion degree of the 3 Artemisia species were analyzed.The results showed that the degree of soil erosion have a great impact on seed yield and seed germination rate,the more serious soil erosion,t...
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