| 摘要: |
| 为进一步了解广东丰溪省级自然保护区不同景观的土壤理化性质, 论文采用野外调查和室内
分析的方法对保护区 3 种景观的土壤 (0 ~ 20 cm 土层) 进行了理化性质分析, 结果表明, 耕地景观的土
壤自然含水量平均值为 291. 44 g·kg
-1
, 显著高于林地景观 (190. 38 g·kg
-1
) 和草地景观 (251. 52 g·
kg
-1
) (P＜0. 05), 而耕地景观土壤容重平均值 (1. 10 g·cm
-3
) 却显著低于林地景观 (1. 25 g·cm
3
)
和草地景观 (1. 28 g·cm
-3
) (P＜0. 05), 不同景观间土壤自然含水量、 容重存在显著差异 (P＜0. 05)。
耕地景观的土壤有机质平均值 (30. 29 g·kg
-1
) 显著高于草地景观 (20. 51 g·kg
-1
) 和林地景观 (14. 65
g·kg
-1
), 不同景观间土壤有机质含量均存在显著差异 (P＜0. 05)。 土壤的 C、 N、 P 化学计量分析结果
显示, 林地景观、 耕地景观和草地景观 C ∶ N 差异不显著, 不同景观间 C ∶ P 和 N ∶ P 存在显著差异 (P＜
0. 05)。 总体而言, 土壤的理化性质等指标在不同景观类型间存在显著差异, 不同景观类型的土壤化学计
量与基本理化性质相关性较强。 |
| 关键词: 省级自然保护区 土壤理化性质 化学计量特征 |
| DOI： |
| 分类号: |
| 基金项目:广东省林业局项目（4400-F220050） |
|
| Study on Soil Physical and Chemical Properties of Different Landscape Types in Fengxi Provincial Nature Reserve, Guangdong |
|
GUO Caixia1, CHEN Chong2, GU Jiawei1, XIAN Lihua3, CHEN Hongyue3
|
|
1.Guangzhou Bauhinia Forestry Planning and Design Co. Ltd;2.Guangdong Dapu Fengxi Provincial Nature Reserve Management Office;3.College of Forestry and Landscape Architecture,South China Agricultural University
|
| Abstract: |
| In order to further understand the physicochemical properties of soils in different landscapes of
the Guangdong Fengxi Provincial Nature Reserve, the thesis used field surveys and indoor analysis methods to
analyze the physicochemical properties of soils (0-20 cm layer) in three landscapes of the reserve. The results
showed that the average natural moisture content of soil in the cultivated land landscape was 291. 44 g·kg
-1
,
significantly higher than that in the forest landscape (190. 38 g·kg
-1
) and grassland landscape (251. 52 g·kg
-1
)(P＜0. 05). However, the average bulk density of soil in the cultivated land landscape (1. 10 g·cm
-3
) was
significantly lower than that in the forest landscape (1. 25 g·cm
-3
) and grassland landscape (1. 28 g·cm
-3
)
(P＜0. 05), with significant differences in natural moisture content and bulk density among different landscapes
(P＜0. 05). The average organic matter content of soil in the cultivated land landscape (30. 29 g·kg
-1
) was
significantly higher than that in the grassland landscape (20. 51 g·kg
-1
) and forest landscape ( 14. 65 g·
kg
-1
), and there were significant differences in soil organic matter content among different landscapes
(P＜0. 05). The stoichiometric analysis of soil C, N, and P showed that there were no significant differences
in C ∶ N among the forest landscape, cultivated land landscape, and grassland landscape, but there were significant differences in C ∶ P and N ∶ P among different landscapes (P＜0. 05). Overall, there were significant
differences in physicochemical properties and other indicators of soil among different landscape types, and the
stoichiometry of soil chemistry in different landscape types was strongly correlated with basic physicochemical
properties. |
| Key words: provincial nature reserve soil physicochemical properties stoichiometric characteristics |
