| 窦金萍,武小钢,杨秀云,陈冠光,靳雅君,吴 茜.不同类型豆科植物群落凋落物对城市土壤质量的影响[J].林业调查规划,2024,49(5):198-204 |
| 不同类型豆科植物群落凋落物对城市土壤质量的影响 |
| Effects of Litter Properties of Different Types of Leguminosae PlantCommunity on Urban Soil Quality |
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| DOI： |
| 中文关键词: 豆科植物群落 凋落物 理化性质 土壤质量 酶活性 相关性分析 太原 |
| 英文关键词: Leguminosae plant community litter properties physicochemical properties soil quality enzyme activity correlation analysis Taiyuan |
| 基金项目:山西省自然科学研究面上项目(202103021224142). |
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| 中文摘要: |
| 为了解不同豆科植物群落类型的凋落物特征对土壤质量的影响。选取太原市森林公园内3种不同群落类型(豆科落叶阔叶林、豆科与非豆科落叶阔叶树种混交林、豆科与常绿针叶树种混交林),通过对不同类型豆科植物群落凋落物性质和土壤质量进行差异性、相关性分析,探讨凋落物性质与土壤因子间的关系。结果表明,不同豆科植物群落类型间凋落物的理化性质存在差异。豆科落叶阔叶林群落凋落物全氮含量(17.68 g/kg)、N/P比值(4.15) 显著高于豆科与非豆科落叶阔
叶树种混交林、豆科与常绿针叶树种混交林。豆科与常绿针叶树种混交林群落凋落物的全磷含量(5.96 g/kg)显著高于豆科与非豆科落叶阔叶树种混交林(3.68 g/kg);不同豆科植物群落类型间土壤性质存在差异。豆科落叶阔叶林土壤全碳(127.28 g/kg)、碱性磷酸酶活性(0.6 g/kg) 显著优于豆科与非豆科落叶阔叶树种混交林、豆科与常绿针叶树种混交林,脲酶活性(0.87 g/kg)显著优于
豆科与非豆科落叶阔叶树种混交林;豆科与非豆科落叶阔叶树种混交林土壤有机碳(23.51 g/kg)、硝态氮(11.21 mg/kg)、全钾(20.88 g/kg) 含量显著低于豆科落叶阔叶林、豆科与常绿针叶树种混交林;凋落物全碳、全氮、全磷、N/P与最大持水量、毛管持水量,土壤全碳、有机碳、全氮、硝态氮、全磷、全钾、速效钾含量,以及脲酶和过氧化氢酶活性间呈显著正相关;凋落物总量、全碳及全磷含量与土壤容重间呈极显著负相关,凋落物C/N与土壤全氮、全碳、有机碳含量间呈显著负相关。不同豆科植物群落类型凋落物可显著降低土壤容重,提升土壤养分和酶活性,且豆科落叶阔叶林、豆科与常绿针叶树种混交林土壤质量要优于豆科与非豆科落叶阔叶树种混交林。 |
| 英文摘要: |
| To understand the effects of litter characteristics of different types of Leguminosae plant communities
on urban soil quality, three different community types (Leguminosae deciduous broad-leaved
forest, Leguminosae and non-Leguminosae deciduous broad-leaved mixed forest, Leguminosae and evergreen
coniferous mixed forest) in Taiyuan Forest Park were selected. Through the difference analysis and
correlation analysis of litter properties and soil quality of different types of Leguminosae plant communities,
the relationship between litter properties and soil factors was discussed. The results indicated that there
were differences in the physicochemical properties of litter among different types of Leguminosae plant
communities. The total nitrogen content (17.68 g/ kg) and N/ P ratio (4.15) of litter in Leguminosae
deciduous broad-leaved forest were significantly higher than those in other two communities. The total
phosphorus content of Leguminosae and evergreen coniferous mixed forest (5.96 g/ kg) was significantly
higher than that of Leguminosae and non-Leguminosae deciduous broad-leaved mixed forest (3.68 g/ kg).
The soil properties of different types of Leguminosae plant communities were different. Soil total carbon
(127.28 g/ kg) and alkaline phosphatase activity (0.6 g/ kg) in Leguminosae deciduous broad-leaved
forest were significantly better than those in other two communities , and urease activity (0.87 g/ kg) was
significantly better than that in Leguminosae and non-Leguminosae deciduous broad-leaved mixed forest.
The contents of soil organic carbon (23.51 g/ kg), nitrate nitrogen (11.21 mg/ kg) and total potassium
(20.88 g/ kg) in Leguminosae and non-Leguminosae deciduous broad-leaved mixed forest were significantly
lower than those in other two communities. Litter total carbon, total nitrogen, total phosphorus, nitrogen
and phosphorus ratio were significantly positively correlated with maximum water holding capacity,
capillary water holding capacity, soil total carbon, organic carbon, total nitrogen, nitrate nitrogen, total
phosphorus, total potassium, available potassium, urease and catalase. The total amount of litter, total
carbon and total phosphorus were significantly negatively correlated with soil bulk density, and the carbonnitrogen
ratio of litter was significantly negatively correlated with soil total nitrogen, total carbon and organic
carbon. Litter of different types of Leguminosae plant community can significantly reduce soil bulk
density, improve soil nutrients and enzyme activities, and the soil quality of Leguminosae deciduous broadleaved
forest and Leguminosae and evergreen coniferous mixed forest was better than that of Leguminosae
and non-Leguminosae deciduous broad-leaved mixed forest. |
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