期刊论文

Nutrient absorption, accumulation, and distribution characteristics of three excellent native tree species plantations in karst area of western Hunan

Liu, Q.

中文

生态学杂志

1000-4890

2017

36

4

902-909

10.13292/j.1000-4890.201704.019

国家科技支撑计划课题（2012BAD21803）资助.

本校为第一机构

为了解喀斯特地区不同人工林生态系统的养分利用特征,本文对湘西自治州森林生态站31年生的华榛(Corylus chinensis)、南酸枣(Choerospondias axillaris)、银鹊树(Tapiscia sinensis)人工林的N、P、K、Ca和Mg 5种营养元素含量、积累、分配、养分循环特征开展了研究。结果表明:(1)华榛、南酸枣和银鹊树3个树种林分的不同器官、地被物以及凋落物营养元素含量均以南酸枣最低;3个树种的不同器官、地被物以及凋落物的营养元素含量均以Ca元素含量最高,P元素含量最低,表现出典型的喀斯特地区植被养分特征;3个树种各器官的养分总含量大小均为树叶>树皮>树枝>树根>树干。(2)南酸枣乔木层和地被物富集P元素...

The content, accumulation, distribution and cycling dynamics of five nutrient elements (N, P, K, Ca, and Mg) in 31-year-old Corylus chinensis, Choerospondias axillaries and Tapiscia sinensis plantations in Xiangxi Autonomous Prefecture Forest Ecological Station were studied to clarify the nutrient use characteristics of different plantation ecosystems in karst area. The results showed that: (1) The contents of nutrient elements in tree organs, forest floor and litter were the lowest in the Ch. axillaries plantation among the three plantations. ...