海棠园土壤调查与改良+文献综述
毕业论文关键词：绿地土壤；理化性状；土壤改良；绿化种植
Investigation and Improvement on Soil of M. halliana Garden in Shanghai Institute of Technology
Abstract: Planting design is the highlight of campus construction, with fascinating plant community as well as comfortable and pleasant visual effect, which are what people pursue. As the most important part of the ecosystem, greenbelt soil plays an important role in maintaining a healthy natural environment. It is the material basis for the maintenance of biological survival, and the eco-environmental quality directly affects a greening effect. Through collecting soil samples with different depth of begonia soil layer in campus, the author carries out a research on the physical and chemical properties of soil. The results indicate that soil of M. halliana Garden belongings to sandy loam soil. Due to imbalanced soil particle proportion, especially for high sand content, led to soil nature close to sand, lack of nutrient. The value of soil pH of green belts is slightly alkalescent, with salinization caused by high salt content, which are attributed to the geographical position of campus and the soil improvement works in Shanghai. The soil natural moisture is partial low, with high soil bulk density, low soil porosity and hardening phenomenon, all of which are influenced by the soil texture and damaged soil structure. Based on these results mentioned above, some measures and suggestions were put forward including soil improvement and greening cultivation for soil management.
Key words: greenbelt soil；physical and chemical properties；soil improvement；greening cultivation
目 录
引言 1
一、立地概况 2
（一）地理位置 2
（二）土壤形成情况 2
二、材料与方法 3
（一）调查时间及地点 3
（二）试验土样 3
（三）土壤样品的采集及处理 4
1、土壤样品的采集 4
2、土壤样品的处理 4
（四）试验测定项目与方法 4
1、土壤颗粒分析的测定 5
2、土壤含盐量的测定 5
3、土壤酸碱度的测定 5
4、土壤自然含水量的测定 5
5、土壤容重的测定 5
6、土壤孔隙度的测定 5
7、土壤饱和持水量的测定 6
（五）数据分析方法 6
三、结果与分析 6
（一）土壤颗粒组成 8
（二）土壤物理性质 8
1、土壤水分 8
2、土壤容重与土壤孔隙 10
（三）土壤化学性质 11
1、土壤酸碱性 11