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秦佳双,李明金,宋尊荣,零天旺,马姜明,杨章旗,颜培栋,菅瑞,陆绍浩.不同年龄阶段马尾松人工林土壤水分-物理性质[J].广西科学,2019,26(2):245-251. [点击复制]
- QIN Jiashuang,LI Mingjin,SONG Zunrong,LING Tianwang,MA Jiangming,YANG Zhangqi,YAN Peidong,JIAN Rui,LU Shaohao.Soil Water-Physical Properties of Pinus massoniana Plantation at Different Ages[J].Guangxi Sciences,2019,26(2):245-251. [点击复制]
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| 不同年龄阶段马尾松人工林土壤水分-物理性质 |
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秦佳双1, 李明金2, 宋尊荣1, 零天旺2, 马姜明1, 杨章旗3, 颜培栋3, 菅瑞1, 陆绍浩2
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| (1.珍稀濒危动植物生态与环境保护教育部重点实验室, 广西桂林 541006;2.横县镇龙林场, 广西横县 530327;3.广西林业科学研究院, 广西南宁 530002) |
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| 摘要: |
| 本研究以广西横县镇龙国有林场内的马尾松人工林为对象，旨在为马尾松林的合理经营提供科学理论依据。采用环刀法对4种不同种植年限马尾松林的土壤物理性质进行研究。结果发现，马尾松人工林土壤容重随林龄的增长呈减小的趋势，土壤饱和持水量、土壤毛管持水量和土壤渗透率随林龄的增长呈逐渐增加的趋势。土壤容重随土层深度的加深而增大，土壤孔隙度、土壤持水量以及土壤渗透速率随土层深度的加深而减小。总体上，马尾松人工林随着林龄的增长对土壤改善起到促进作用，且表层土壤处于较好状态，深层土壤改善效果逐渐增大。 |
| 关键词: 马尾松人工林 土壤容重 土壤孔隙度 土壤持水量 土壤渗透率 |
| DOI：10.13656/j.cnki.gxkx.20190419.002 |
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| 基金项目:广西创新驱动发展专项（广西重大专项）课题（桂科AA17204087-7）资助。 |
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| Soil Water-Physical Properties of Pinus massoniana Plantation at Different Ages |
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QIN Jiashuang1, LI Mingjin2, SONG Zunrong1, LING Tianwang2, MA Jiangming1, YANG Zhangqi3, YAN Peidong3, JIAN Rui1, LU Shaohao2
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| (1.Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guilin, Guangxi, 541006, China;2.Zhenlong Forest Farm, Hengxian, Guangxi, 530327, China;3.Guangxi Academy of Forestry Sciences, Nanning, Guangxi, 530002, China) |
| Abstract: |
| This study took the Zhenlong State-owned Forest Farm of Pinus massoniana forest in Guangxi Province as the researched object and aimed to provide a scientific theoretical basis for the rational management of the P.massoniana forest. The soil physical properties of P.massoniana forest under different planting years were studied by the method of cutting ring. The results showed that the soil bulk density of P.massoniana plantation decreased with the increase of forest age, while the moisture-holding capacity, soil capillary capacity and soil permeability increased with the increase of forest age. The soil bulk density increased with the depth of the soil layer. On the contrary, the soil porosity, soil-water capacity and the soil penetration rate decreased with the depth of the soil layer. In general, the P.massoniana plantation promoted soil improvement with the increase of forest age, and the surface soil was in a good state, and the improvement effect of deep soil gradually increased. |
| Key words: Pinus massoniana plantation soil bulk density soil porosity soil-water capacity soil permeability |
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