樟树人工林土壤养分动态及施肥技术研究
摘 要
樟树（Cinnamomum camphora）作为一种重要的经济和生态树种，在中国南方广泛种植。然而，随着人工林面积的扩大，土壤养分消耗加剧，导致土壤质量下降，进而影响樟树的生长和木材产量。本研究旨在探讨樟树人工林土壤养分的动态变化规律，并提出科学的施肥技术以优化土壤养分结构。研究选取了江西省某地的樟树人工林作为试验区，通过连续三年的定位观测，分析了不同施肥处理下土壤有机质、氮、磷、钾等主要养分的含量变化。结果表明，长期不施肥会导致土壤养分显著下降，尤其是速效钾和有效磷的流失最为严重。通过对比不同施肥方案（有机肥与化肥的组合施用），发现有机肥与化肥配施能够显著提高土壤养分含量，且对樟树的生长促进效果最佳。
关键词：樟树人工林；土壤养分动态；施肥技术
STUDY ON SOIL NUTRIENT DYNAMICS AND FERTILIZATION TECHNOLOGY IN CAMPHOR TREE PLANTATION
ABSTRACT
Camphor tree (Cinnamomum camphora), as an important economic and ecological tree species, is widely cultivated in southern China. However, with the expansion of the area of plantation, soil nutrient consumption is increased, leading to a decrease of soil quality, which then affects the growth and wood yield. The purpose of this study is to investigate the dynamic pattern of soil nutrient change in camphor plantation and propose scientific fertilization techniques to optimize soil nutrient structure. The camphor tree plantation in Jiangxi Province was selected as the experimental area to analyze the content changes of soil organic matter, nitrogen, phosphorus, potassium and other major nutrients under different fertilization treatments through three consecutive years of location observation. The results show that long-term unfertilization will lead to a significant decrease in soil nutrients, especially the loss of quick potassium and effective phosphorus. By comparing different fertilization schemes (combined application of organic fertilizer and chemical fertilizer), it is found that the application of organic fertilizer and chemical fertilizer can significantly improve the soil nutrient content, and have the best effect on the growth of camphor tree.
KEY WORDS：Camphor tree plantation; soil nutrient dynamics; fertilization technique
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 研究背景及意义 1
1.2 研究目的和内容 1
第2章 樟树人工林土壤养分动态监测与分析 2
2.1 土壤养分动态监测方法 2
2.2 土壤养分时空变化特征 2
2.3 影响土壤养分动态的关键因素 3
第3章 樟树人工林施肥技术优化研究 4
3.1 施肥对土壤养分的影响机制 4
3.2 不同施肥方案的对比分析 4
3.3 施肥技术对樟树生长的响应 5
第4章 樟树人工林土壤养分管理策略与应用 6
4.1 基于养分动态的施肥策略制定 6
4.2 樟树人工林土壤养分管理实践案例 6
4.3 未来施肥技术的改进方向 6
第5章 结论 8
参考文献 9
致 谢 10
摘 要
樟树（Cinnamomum camphora）作为一种重要的经济和生态树种，在中国南方广泛种植。然而，随着人工林面积的扩大，土壤养分消耗加剧，导致土壤质量下降，进而影响樟树的生长和木材产量。本研究旨在探讨樟树人工林土壤养分的动态变化规律，并提出科学的施肥技术以优化土壤养分结构。研究选取了江西省某地的樟树人工林作为试验区，通过连续三年的定位观测，分析了不同施肥处理下土壤有机质、氮、磷、钾等主要养分的含量变化。结果表明，长期不施肥会导致土壤养分显著下降，尤其是速效钾和有效磷的流失最为严重。通过对比不同施肥方案（有机肥与化肥的组合施用），发现有机肥与化肥配施能够显著提高土壤养分含量，且对樟树的生长促进效果最佳。
关键词：樟树人工林；土壤养分动态；施肥技术
STUDY ON SOIL NUTRIENT DYNAMICS AND FERTILIZATION TECHNOLOGY IN CAMPHOR TREE PLANTATION
ABSTRACT
Camphor tree (Cinnamomum camphora), as an important economic and ecological tree species, is widely cultivated in southern China. However, with the expansion of the area of plantation, soil nutrient consumption is increased, leading to a decrease of soil quality, which then affects the growth and wood yield. The purpose of this study is to investigate the dynamic pattern of soil nutrient change in camphor plantation and propose scientific fertilization techniques to optimize soil nutrient structure. The camphor tree plantation in Jiangxi Province was selected as the experimental area to analyze the content changes of soil organic matter, nitrogen, phosphorus, potassium and other major nutrients under different fertilization treatments through three consecutive years of location observation. The results show that long-term unfertilization will lead to a significant decrease in soil nutrients, especially the loss of quick potassium and effective phosphorus. By comparing different fertilization schemes (combined application of organic fertilizer and chemical fertilizer), it is found that the application of organic fertilizer and chemical fertilizer can significantly improve the soil nutrient content, and have the best effect on the growth of camphor tree.
KEY WORDS：Camphor tree plantation; soil nutrient dynamics; fertilization technique
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 研究背景及意义 1
1.2 研究目的和内容 1
第2章 樟树人工林土壤养分动态监测与分析 2
2.1 土壤养分动态监测方法 2
2.2 土壤养分时空变化特征 2
2.3 影响土壤养分动态的关键因素 3
第3章 樟树人工林施肥技术优化研究 4
3.1 施肥对土壤养分的影响机制 4
3.2 不同施肥方案的对比分析 4
3.3 施肥技术对樟树生长的响应 5
第4章 樟树人工林土壤养分管理策略与应用 6
4.1 基于养分动态的施肥策略制定 6
4.2 樟树人工林土壤养分管理实践案例 6
4.3 未来施肥技术的改进方向 6
第5章 结论 8
参考文献 9
致 谢 10
