徐州城市森林土壤水土保持特性分析
毕业论文关键词：城市森林；森林类型；水土保持特性；徐州市
Xuzhou City Soil And Water Conservation Forest Soil Characteristics Analysis
Abstract: water infiltration, water holding capacity, corrosion resistance is a reflection of the specific indicators in the soil and water conservation characteristics of city forest soil, water conservation, soil and water conservation is an important ecological value of forest ecosystem. In this paper, six types of Xuzhou side of Berlin, locust forest, cedar forest, camphor forest, mixed forest, tree + Paulownia tomentosa + ginkgo mixed forest forest as the research object, using the method of field investigation and laboratory analysis were combined, respectively characteristics of different types of forest soil (including infiltration, the water holding performance, corrosion resistance were studied. The results show that, Xuzhou forest soil infiltration sort: Berlin side, camphor forest, Robinia pseudoacacia forest > poplar mixed forest > sycamore ginkgo +Paulownia mixed forests and cedar forests; the water holding capacity of order: camphor forest > Berlin side of Robinia pseudoacacia forest of Populus tomentosa + ginkgo mixed forest > mixed with paulownia wood plane forest, cedar forest; soil disintegration rate of locust > sort: Populus tomentosa + gingko mixed forest > mixed forest tree + Paulownia forest > Berlin > cedar side of camphor forest; water stability index: camphor forest >sycamore side of the Berlin cedar forests mixed with Paulownia forest, mixed forest, Populus tomentosa and ginkgo locust forest; comprehensive evaluation function scores and sorting of soil and water conservation: camphor forest > Berlin > sycamore + side Paulownia tomentosa + ginkgo mixed forest > mixed forest > cedar forests of Robinia pseudoacacia.
Keywords: city forest; forest types; characteristics of soil and water conservation; Xuzhou City
目录
1 绪论 1
1.1 目的意义 1
1.2 国内外研究进展 1
1.3 研究思路 2
2 材料与方法 2
2.1 研究区概况 2
2.2 样地设置与测定方法 3
2.2.1 样地设置 . 3
2.2.2 测定方法 . 3
3 结果与分析 4
3.1 入渗性能 4
3.2 持水性能 5
3.3 抗蚀性能 6
3.3.1 土壤的颗粒组成 . 6
3.3.2 土壤团聚体 . 7
3.3.3 土壤土粒崩解速率 . 7
3.3.4 土壤水稳性指数 . 8
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