| 不同树龄橡胶林土壤水分和细根生物量 |
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| 引用本文： | Lin XH,Chen QB,Hua YG,Yang LF,Wang ZH. 不同树龄橡胶林土壤水分和细根生物量[J]. 应用生态学报, 2011, 22(2): 331-336 |
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| 作者姓名： | Lin XH Chen QB Hua YG Yang LF Wang ZH |
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| 作者单位： | 1. 中国热带农业科学院橡胶研究所,海南儋州,571737;中国热带农业科学院湛江实验站,广东湛江,524013
2. 中国热带农业科学院橡胶研究所,海南儋州,571737 |
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| 基金项目： | 国家自然科学基金项目,中央级公益性科研院所基本科研业务费专项 |
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| 摘 要： | 采用根钻法,分析了橡胶幼树期(5 a)、初产期(9 a)和旺产期(16 a)林下土壤水分特征及橡胶树细根生物量.结果表明:橡胶树龄越大,土壤含水量越高,而橡胶树细根生物量越少;不同树龄橡胶林0～60 cm土壤含水量随着土层深度的增加而升高,年内变化则呈"双峰"型;不同树龄橡胶树细根生物量最大值均出现在10 cm土层,且随着土层深度的增加而减少,细根生物量年内变化同样呈"双峰"型,但不同树龄细根生物量峰值的出现时间不一致.土壤含水量和土层深度是橡胶树细根生物量的主要影响因子.
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| 关 键 词： | 橡胶树 细根生物量 土壤水分 垂直分布 |
Soil moisture content and fine root biomass of rubber tree (Hevea brasiliensis) plantations at different ages |
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| Lin Xi-Hao,Chen Qiu-Bo,Hua Yuan-Gang,Yang Li-Fu,Wang Zhen-Hui. Soil moisture content and fine root biomass of rubber tree (Hevea brasiliensis) plantations at different ages[J]. The journal of applied ecology, 2011, 22(2): 331-336 |
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| Authors: | Lin Xi-Hao Chen Qiu-Bo Hua Yuan-Gang Yang Li-Fu Wang Zhen-Hui |
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| Affiliation: | LIN Xi-hao1,2,CHEN Qiu-bo1,HUA Yuan-gang1,YANG Li-fu1,WANG Zhen-hui1(1Rubber Research Institute,Chinese Academy of Tropical Agriculture Sciences,Danzhou 571737,Hainan,China,2Zhanjiang Experimental Station,Zhanjiang 524013,Guangdong,China) |
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| Abstract: | By using soil core sampling method,this paper studied the soil moisture regime of rubber plantations and the fine root biomass of Hevea brasiliensis in immature period(5 a),early yielding period(9 a),and peak yielding period(16 a).With the increasing age of rubber trees,the soil moisture content of rubber plantations increased but the fine root biomass decreased.The soil moisture content at the depth of 0-60 cm in test rubber plantations increased with soil depth,and presented a double-peak pattern over the... |
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| Keywords: | Hevea brasiliensis fine root biomass soil moisture vertical distribution. |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ |
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