七种植物在NO3NH4为5050湿地下的生长与竞争.doc

毕业论文 2011 届 七种植物在N037NH4+A 50/50湿地下的生长与竞争 学生姓名 学 号 0000000 院 系 生命科学学院 专 业 生物科学 指导教师 0000000 完成时间 植物在N03 /NH4+为50/50湿地下的生长与竞争 摘 要 本文在N03-/NH4+为50/50的情况下，研究芦竹、芦苇、美人蕉、菩提子、千 屈菜、杭子梢、合萌、白茅等8种湿地植物的生长与竞争。1) 8种植物在相同条 件下独立培养时表明：芦竹、白茅、美人蕉的生物量大于芦苇、菩提子、杭子梢、 合萌的生物量(P0.05)。芦竹、白茅、美人蕉三种植物间无差异，千屈菜、芦 苇、菩提子、杭子梢、合萌五种植物间无差异。株高和冠幅的大小与生物量基本 保持一致。2) 8种植物混合种植吋表明：菩提子、芦竹、美人蕉、千屈菜的生物 量大于杭子梢、白茅、芦苇、合萌的生物量(P0.05)。芦竹、白茅、美人蕉、千 屈菜四种植物间无差异，芦苇、菩提子、杭子梢、合萌四种植物间无差异。株高 和冠幅的大小与生物量基本保持一致。在湿地植物选种的过程中，单独种植时选 择芦竹、美人蕉、千屈菜、白茅、菩提子这几种生长优势大的湿地植物比较有利。 混合种植吋选择芦竹、美人蕉、千屈菜、菩提子这几种竞争优势强的湿地植物比 较有利。 关键词美人蕉，芦竹，生物量 THE GROWTH AND COMPETITIONAMONG Eight KINDS OF PLANTS INWET GROUND IN THE RATIO OFNO3 /NH4+ TO 50/50 ABSTRACT In this paper, the study of bamboo reed, reed, canna，Pu Tizi，thousands of dishes Qu,Hangzhou sub-Pins，together Meng, Imperata and other 8 species of wetland plant growth and competition in the nutrient solutions of (NO/NH4+) 50/50. 1) 8 independent plants cultured under the same conditions that: The biomass of Arundo donax，Imperata cylindrical, canna is greater than the biological reed，Pu Tizi， Hangzhou sub-Pins，co-Meng (P 0.05).Arundo donax，Imperata cylindrical, Canna was no difference between the three plants, reeds，Pu Tizi, Hangzhou sub-Pins， co-Meng was no difference between the five plants. Height and crown size and biomass remained consistent. 2) 8 mixed planting species that: The biomass of Pu Tizi, Arundo donax，Canna, thousands of Qu Hangzhou cuisine is greater than the biological child shoot，Imperata cylindrical，reed, co-Meng (P 0.05). Arundo donax， Imperata cylindrical，canna，four plant thousands of flexion did not differ between food，reed, Pu Tizi, Hangzhou sub-Pins，co-Meng was no difference between the four plants. Height and crown size and biomass remained consistent. In the selection of wetland plants，The selection of individual plant of Arundo donax，Canna, thousands of flexion vegetables, Imperata，Pu Tizi big advantage of these types of growth and more favorable wetland plants. The selecti