| 南亚热带桉树林和针阔混交林土壤及凋落物持水能力比较 |
| |
| 引用本文： | 陈伟光,张卫强,张卫华,唐洪辉,盘李军,冼杆标.南亚热带桉树林和针阔混交林土壤及凋落物持水能力比较[J].广东林业科技,2014,30(5):35-42. |
| |
| 作者姓名： | 陈伟光 张卫强 张卫华 唐洪辉 盘李军 冼杆标 |
| |
| 作者单位： | 1. 广东省佛山市云勇生态林养护中心,广东 佛山,528518
2. 广东省林业科学研究院,广东 广州,510520 |
| |
| 基金项目： | 林业公益性行业科研专项（201104003 04），广东省林业科技创新专项项目(2010KJCX013 02)，广东省佛山市农业局科技项目“佛山市生态景观林培育技术研究与推广示范”和国家林业局广东东江源森林生态站联合资助 |
| |
| 摘 要： | 以桉树林（第2代和第1代）和杉木针阔混交林（10～11 a和5～7 a生）为研究对象，探讨南亚热带4种试验林0～100 cm土层土壤及凋落物持水能力。结果表明，在0～100 cm土层，针阔混交林土壤总孔隙度和毛管孔隙度均高于桉树林，而土壤非毛管孔隙度却显著低于桉树林（P＜0．05），表明针阔混交林土壤中有效水的贮存容量高于桉树林。受土壤总孔隙度和毛管孔隙度的影响，针阔混交林土壤最大持水量和毛管持水量显著高于桉树林（P＜0．05）。4种试验林田间持水量的差异不显著（P＞0．05），说明4种试验林土壤保水能力基本一致。4种林分凋落物量表现为桉树林Ⅳ＞桉树林Ⅱ＞针阔混交林Ⅰ＞针阔混交林Ⅲ，桉树林凋落物最大持水量、最大拦蓄量和有效拦蓄量显著高于针阔混交林（P＜0．05）。
|
| 关 键 词： | 桉树林 针阔混交林 土壤及凋落物持水能力 南亚热带 |
| 收稿时间： | 2014/4/22 0:00:00 |
| 修稿时间： | 2014/5/27 0:00:00 |
Comparison on Water Holding Capacities of Soil and Litter of Eucalyptus Plantation and Conifer Broadleaved Mixed Forest in Southern Subtropical Region |
| |
| CHENG Weiguang,ZHANG Weiqiang,ZHANG Weihu,TANG Honghui,PAN Lijun and XI Ganbiao.Comparison on Water Holding Capacities of Soil and Litter of Eucalyptus Plantation and Conifer Broadleaved Mixed Forest in Southern Subtropical Region[J].Forestry Science and Technology of Guangdong Province,2014,30(5):35-42. |
| |
| Authors: | CHENG Weiguang ZHANG Weiqiang ZHANG Weihu TANG Honghui PAN Lijun and XI Ganbiao |
| |
| Institution: | Guangdong Academy of Forestry,Guangzhou,Guangdong Academy of Forestry,Guangzhou,Guangdong Academy of Forestry,Guangzhou,Maintenance Center for Yunyong Ecological Forest of Foshan,Maintenance Center for Yunyong Ecological Forest of Foshan |
| |
| Abstract: | For understanding the water-holding capacities of soil and litter of plantations in southern sub-tropical region,four kinds of stands were taken as the research objects.The stands included the first （Ⅳ）and sec-ond （Ⅱ）generation Eucalyptus plantations,as well as 1 0-1 1 （Ⅰ）and 5-7 （Ⅲ）years old conifer-broadleaved mixed forests.The total porosity,capillary porosity of conifer-broadleaved mixed forests were higher than those of Eucalyptus plantations,while non-capillary porosity of conifer-broadleaved mixed forests was lower than that of Eu-calyptus plantations （P〈0.05）,and soil of Eucalyptus plantations showed the lower effective water storage capaci-ty.The maximum water-holding capacity and capillary water-holding capacity of conifer-broadleaved mixed forests were obviously higher than those of Eucalyptus plantation because of the effects of soil total porosity and capillary porosity.There were no significant differences of field water-holding capacity among four kinds of stands （P〉0.05）,indicating the same soil water retention capacity.The water-holding capacities of litter in four kinds of stands followed the order of Eucalyptus plantation （Ⅳ）〉Eucalyptus plantation （Ⅱ）〉conifer-broadleaved mixed forest （Ⅰ）〉conifer-broadleaved mixed forest （Ⅲ）.The maximum water-holding capacity,maximum re-tain capacity and effective retain capacity of Eucalyptus plantations were obviously higher than those of conifer-broa-dleaved mixed forests （P〈0.05）.The study provided scientific basis for tree selection,near natural transformation of stand,forest management and assessment of service function of forest ecosystem. |
| |
| Keywords: | Eucalyptus plantation conifer-broadleaved mixed forest water-holding capacities of soil and litter southern subtropical region |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《广东林业科技》浏览原始摘要信息 |
| 点击此处可从《广东林业科技》下载免费的PDF全文 |
|
