[1]倪荣新,葛永金,洪小平,等.油茶—川西小黄菊复合经营中根系分布特征研究[J].浙江林业科技,2016,36(04):10-14.
 NI Rong-xin,GE Yong-jin,HONG Xiao-ping,et al.Root Distribution of Intercropping Camellia oleifera with Pyrethrum tatsienense[J].Journal of Zhejiang Forestry Science and Technology,2016,36(04):10-14.
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油茶—川西小黄菊复合经营中根系分布特征研究()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
36
期数:
2016年04期
页码:
10-14
栏目:
研究报告
出版日期:
2016-10-31

文章信息/Info

Title:
Root Distribution of Intercropping Camellia oleifera with Pyrethrum tatsienense
作者:
倪荣新1葛永金2洪小平3吴英俊4何小勇2刘跃钧2
1. 浙江省丽水市林业技术推广总站,浙江 丽水 323000;2. 浙江省丽水市林业科学研究院,浙江 丽水 323000; 3. 浙江省龙泉市林业局,浙江 龙泉 323700;4. 浙江省遂昌县林业局,浙江 遂昌 323300
Author(s):
NI Rong-xin1GE Yong-jin2HONG Xiao-ping3WU Ying-jun4HE Xiao-yong2LIU Yue-jun2
1. Lishui Forestry Extension Station of Zhejiang, Lishui 323000, China; 2. Lishui Forestry Institute of Zhejiang, Lishui 323000, China; 3. Longquan Forestry Bureau of Zhejiang, Longquan 323700, China; 4. Suichang Forestry Bureau of Zhejiang, Suichang 323300, China
关键词:
油茶复合系统根系川西小黄菊
Keywords:
Camellia oleifera intercropping system fine roots Pyrethrum tatsienense
分类号:
S718.4
文献标志码:
A
摘要:
2015年11月,在浙江省龙泉市油茶(Camellia oleifera)—川西小黄菊(Pyrethrum tatsienense)复合经营林地中,采用分层挖掘和环刀法取样,使用Win Rhizo系统分析根系根长、体积,测定生物量,对复合经营根系空间分布特征进行研究。结果表明,复合系统中川西小黄菊地下根系密度、体积分布趋势较为一致,在树冠滴水线附近较小,根系各指标数值随着距离增加而增大,在离滴水线30 cm左右达到最大值;在垂直方向随着土层深度的增加而显著减少(置信概率95%),根系绝大部分分布在0 ~ 20 cm的土层。油茶的根长密度、生物量和体积在树冠滴水线附近占比分别为34.76%、28.27%和35.23%,随着距离增大而减小;根长密度、生物量和体积在20 cm以下土层占比分别为82.27%,74.66%和89.39%。油茶单作条件下的根系根长密度、生物量和体积在水平分布上随着距离增大而逐渐减少,但其相对值却比复合系统大,其根系在0 ~ 20 cm的土层分布有所增加。复合系统根系在水平方向,在滴水线附近的重叠程度为0.76,垂直方向的> 20 ~ 40 cm土层中的重叠程度为0.69。
Abstract:
Soils were sampled in stand of intercropping Camellia oleifera with Pyrethrum tatsienense in 2015 in Longquan, Zhejiang province for determine root length, volume and biomass. Results showed that density and length of P. tatsienense roots had similar horizontal distribution, smaller around water dripping line of crown, and increased with the distance to the line, and topped 30 cm from the line. While vertical distribution of density and length of roots decreased with the depth of soil layer, most of root system distributed at 0-20cm layer. Root length density, biomass and volume of C. oleifera around water dripping line occupied 34.76%, 28.27% and 35.23% of the total ones and decreased with increase of the distance, while that under layer of 20cm took 82.27%, 74.66% and 89.39%. Overlap of horizontal root system in intercropping stand was 0.76 near water dripping line, and 0.69 of vertical direction at layer of >20-40.

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备注/Memo

备注/Memo:
收稿日期:2016-01-19;修回日期:2016-04-06 基金项目:中央财政林业科技推广示范跨区域重点推广示范项目(2011TK037);丽水市高校、科研院所农业科技成果推广基地建设项目 (2012JDJS04) 作者简介:倪荣新(1965-),男,浙江绍兴人,高级工程师,从事油茶等木本油料技术研究。
更新日期/Last Update: 2016-12-20