| 广西黄冕林场桉树萌芽林土壤肥力变化分析 |
| |
| 引用本文： | 覃祚玉,蒋雪刚,唐健,邓玉华,曹继钊,王会利.广西黄冕林场桉树萌芽林土壤肥力变化分析[J].南方农业学报,2014,0(3):429-433. |
| |
| 作者姓名： | 覃祚玉 蒋雪刚 唐健 邓玉华 曹继钊 王会利 |
| |
| 作者单位： | 广西林业科学研究院/国家林业局中南速生材繁育实验室/广西优良用材林资源培育重点实验室,南宁,530002广西国营黄冕林场,广西 鹿寨,545600 |
| |
| 基金项目： | 广西科学研究与技术开发计划项目广西林业科技项目 |
| |
| 摘 要： | 【目的】对广西黄冕林场的桉树萌芽林(1~4年)的土壤肥力变化规律进行分析研究,为该树种的科学施肥提供依据。【方法】利用灰色关联度分析方法对不同林龄桉树萌芽林土壤综合肥力进行分析,以土壤pH、有机质、全N、全P、全K、碱解N、有效P、速效K、Ca、Mg、Cu、Zn、B、Fe、Mn作为评价指标,分析林地土壤综合肥力变化规律。【结果】林场土壤综合肥力在垂直梯度表现为:A层(0~20cm)>B层(20~40cm)。在整个轮伐期内,桉树萌芽林土壤综合肥力系数由0.608降低至0.595,表现出对土壤养分的最终消耗,各林龄桉树萌芽林土壤肥力大部分处于一般肥力水平(四级)。【结论】轮伐期内,土壤肥力先增加后降低,第2年后土壤肥力消耗量持续增大,施肥对土壤肥力的影响较大。
|
| 关 键 词： | 桉树萌芽林 不同林龄 土壤肥力 综合评价 广西黄冕林场 |
Change in soil fertility of Eucalyptus sprout stand in Huangmian forest farm of Guangxi |
| |
| QIN Zuo-yu,JIANG Xue-gang,TANG Jian,DENG Yu-hua,CAO Ji-zhao,WANG Hui-li.Change in soil fertility of Eucalyptus sprout stand in Huangmian forest farm of Guangxi[J].Journal of Southern Agriculture,2014,0(3):429-433. |
| |
| Authors: | QIN Zuo-yu JIANG Xue-gang TANG Jian DENG Yu-hua CAO Ji-zhao WANG Hui-li |
| |
| Abstract: | Objective]Change in soil fertility of Eucalyptus sprout land (1-4 years) in Huangmian forest farm of Guangxi was studied to provide references for its scientific fertilization. Method]Soil comprehensive fertility of Eucalyptus sprout land at different stages was analyzed using grey correlation degree analysis method. Comprehensive soil fertility changes were ana-lyzed based on the evaluation indicators of soil pH,soil organic matter,total N,total P,total K,alkali-hydrolyzable nitrogen, available P, and rapid available K, Ca, Mg, Cu, Zn ,B, Fe and Mn. Result]In different soil layer,soil comprehensive fertility presented that A layer (0-20 cm)was higher than B layer (20-40 cm). Soil comprehensive fertility coefficient of Euca-lyptus sprout land changed from 0.608 to 0.595 at alternation cutting stage, showing a tendency of entire consumption of soil nutrients.Conclusion]Soil fertility of Eucalyptus sprout land firstly increased, and then decreased. After the second year,soil fertility consumption continued to increase. Fertilization had significant effects on soil fertility, and thus scientific fertilization and nutrient management were significant to Eucalyptus industrial sustainable development. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《南方农业学报》浏览原始摘要信息 |
|
点击此处可从《南方农业学报》下载全文 |
|
