Analysis of Growth and Soil Physicochemical Properties of Two Mixed Bamboo Forests
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摘要: 以毛竹杉木和毛竹福建柏混交林为对象,研究混交对竹木生长和土壤理化性状的影响。结果表明:合理混交可以促进竹木生长,5竹5杉是适宜的毛竹杉木混交比例,毛竹林内只宜混交低于2成的福建柏;毛竹杉木混交林表层土壤营养元素高于下层,5竹5杉的营养元素含量较高,非毛管孔隙度、通气度均达到最大值,土壤肥力最强;毛竹福建柏混交林的非毛管孔隙度较福建柏纯林低,表层土壤容重随福建柏比例的增加而递减,以9竹1柏土壤肥力最高;混交林的pH值均较毛竹纯林低,杉木纯林又低于毛竹杉木混交林,福建柏纯林介于毛竹福建柏各混交林之间。Abstract: In this paper,the effects of mixed forest management on the growth and soil physical and chemical properties of two mixed forests,i. e.,Moso bamboo (Phyllostachys edulis)-China fir (Cunninghamia lanceolata) and Moso bamboo-Fujian cypress (Fokienia hodginsii),were studied. The results showed that properly mixed forests could promote the growth of both bamboo and the other tree species. Specifically,5 bamboo stems and 5 China fir trees were the most suitable ratio for a mixed Moso bamboo-China fir forest,while less than 20 percent of Fujian cypress was acceptable in a mixed Moso bamboo-Fujian cypress forest. The nutrient elements in the soil surface layer were more abundant than those in the lower layer in the mixed Moso bamboo-China fir forest,and in the ideal 50/50 mixture,the nutrient elements were rich,the non-capillary porosity and the soil aeration reached the maximum values,and the soil fertility was the highest. The non-capillary porosity of the soil in mixed Moso bamboo-Fujian cypress forest was lower than that in pure Fujian cypress forest and the surface soil bulk density decreased as the proportion of Fujian cypress in the forest increased. The highest soil fertility was observed in the plot of 9 bamboo stems and 1 Fujian cypress tree. The soil pH value of any mixed forest was lower than that of the pure Moso bamboo forest,while the soil pH of the pure China fir forest was even lower than that of any mixed Moso bamboo-China fir forest. The soil pH of the pure Fujian cypress forest fell between those of the mixed Moso bamboo-Fujian cypress forests.
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Key words:
- Phyllostachys edulis /
- Cunninghamia lanceolata /
- Fokienia hodginsii /
- Mixed forest management /
- Growth /
- Soil
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[1] 王生华.福建东牙溪流域毛竹混交林的水源涵养功能[J].中南林业调查规划,2004,23(3):57-60. [2] 周亚琦,董杰,官凤英,等.竹阔混交林研究进展与展望[J].林业资源管理,2016(3):145-150. [3] 陈才榜.毛竹纯林与竹阔混交林土壤肥力比较研究[J].安徽农学通报,2022,28(4):68-69,99. [4] 陈睿.毛竹混交林结构及其伴生树种选择研究[D].福州:福建农林大学,2004. [5] 曹永慧,萧江华,陈双林,等.竹阔混交林阔叶树下土壤养分对毛竹生长的影响[J].南京林业大学学报(自然科学版),2007,31(6):43-47.
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