| 宜山杉木人工林生态系统养分含量和分布的研究 |
| |
| 引用本文： | 薛立,罗山. 宜山杉木人工林生态系统养分含量和分布的研究[J]. 华南农业大学学报, 2002, 23(1): 24-26 |
| |
| 作者姓名： | 薛立 罗山 |
| |
| 作者单位： | 1. 华南农业大学林学院,广东广州,510642
2. 华南农业大学人文学院,广东广州,510642 |
| |
| 基金项目： | 广西林业局资助项目“广西森林生态系统研究”的内容之一 |
| |
| 摘 要： | 对广西宜山11生低产杉木人工林的N、P、K，Ca、Mg的含量和分布进行了研究。结果表明：各组分中叶和果的养分浓度最高。各养分中Ca和N的浓度最大。杉木林生态系统中，土壤的各种养分储存量达到生态系统相应养分总量的99％以上。杉木林叶量小，林冠下部宿存大量的枯枝叶及立地条件差可能是造成宜山杉木林低产的原因。
|
| 关 键 词： | 杉木林 养分浓度 养分分布 人工林 生态系统 低产林 |
| 文章编号： | 1001-411(2002)01-0024-03 |
| 修稿时间： | 2001-03-18 |
Concentration and Distribution of Nutrients in An Artificial Cunninghamia lanceolata Stand Ecosystem at Yishan |
| |
| XUE Li,LUO Shan. Concentration and Distribution of Nutrients in An Artificial Cunninghamia lanceolata Stand Ecosystem at Yishan[J]. JOURNAL OF SOUTH CHINA AGRICULTURAL UNIVERSITY, 2002, 23(1): 24-26 |
| |
| Authors: | XUE Li LUO Shan |
| |
| Affiliation: | XUE Li 1,LUO Shan 2 |
| |
| Abstract: | Concentration and distribution of N, P, K, Ca and Mg in a 11 year old artificial Cunninghamia lanceolata stand on a poor soil were studied. The highest concentration of nutrients was found in leaves and fruits, and N and Ca concentrations were higher than those of other nutrients. Accumulation of five nutrients in soil contributed more than 99% of the total in Cunninghamia lanceolata stand ecosystem. The small leaf amount with a lot of attached dead leaves and branches and bad site condition may be responsible for the low yield of Cunninghamia lanceolata stand. |
| |
| Keywords: | Cunninghamia lanceolata nutrient concentration nutrient distribution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《华南农业大学学报》浏览原始摘要信息 |
|
点击此处可从《华南农业大学学报》下载全文 |
