八种植物在no3-/nh4+为50/50湿地下的生长与竞争.doc

八种植物在NO3-/NH4+为50/50湿地下的生长与竞争

摘    要
本文在NO3-/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（P<0.05）。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种植物混合种植时表明：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(P<0.05)。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。混合种植时选择芦竹、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 COMPETITION AMONG Eight KINDS OF PLANTS IN WET GROUND IN THE RATIO OF NO3-/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 (NO3-/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 selection of mixed planting of bamboo reed, canna, thousands of flexion vegetables, Pu Tizi strong competitive advantage of these types of wetland plants more favorable.

Key words   Canna, Arundo donax, biomass

目录

摘    要 I
ABSTRACT II
前言 1
1  材料和方法 2
1.1实验材料 2
1.1.1芦竹 2
1.1.2芦苇 3
1.1.3菩提子 3
1.1.4美人蕉 3
1.1.5白茅 4
1.1.6合萌 4
1.1.7杭子梢 4
1.1.8千屈菜 5
1.2 样地分析及栽培情况 5
1.3 营养液的配方 6
2  测定方法 6
2.1生物量的测定 6
2.2株高和冠幅的测量 7
2.2.1株高测量 7
2.2.2冠幅测量 7
3  结果和分析 7
3.1 在NO3-/NH4+为50/50的湿地下8种植物生物量的比较 7
3.2在NO3-/NH4+为50/50的湿地下8种植物生长分析 11
3.2.1在NO3-/NH4+为50/50的湿地下8种植物株高比较 11
3.2.2在NO3-/NH4+为50/50的湿地下8种植物冠幅比较 14
4分析与结论 17
参考文献 18
致谢 19