| 徐淮平原农田防护林带杨树根系特征研究 |
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| 引用本文： | 胡海波,王成刚.徐淮平原农田防护林带杨树根系特征研究[J].南京林业大学学报(自然科学版),1996,20(1):12-16. |
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| 作者姓名： | 胡海波 王成刚 |
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| 作者单位： | 南京林业大学，南京林业大学，南京林业大学，徐州市大庙林业站，徐州市邵店林业站 南京210037，南京210037，南京210037 |
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| 基金项目： | 国家“黄淮海综合开发技术”研究内容 |
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| 摘 要： | 主要研究徐淮平原农田防护林带林木根系分布特征，结论如下：①在道路和沟坡上，随着离根株距离的增加，根系生物量和长度急剧下降；根株附近大根所占比率较高，而较远处细根所占比率较高。②道路土壤中细根相对较少，而农田中较多。③无论在农田还是在道路中，根系主要分布在０￣４０ｃｍ土层内；但路边大根分布深。
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| 关 键 词： | 徐淮平原 农田防护林带 根系分布 生物量 杨树 |
STUDY ON ROOT DISTRIBUTION CHARACTERISTIC OF SHELTER BELT FOR FARMLAND IN XUHUAI PLAIN AREA |
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| Hu Haibo Wan Fuxu Zhang Jinchi.STUDY ON ROOT DISTRIBUTION CHARACTERISTIC OF SHELTER BELT FOR FARMLAND IN XUHUAI PLAIN AREA[J].Journal of Nanjing Forestry University(Natural Sciences ),1996,20(1):12-16. |
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| Authors: | Hu Haibo Wan Fuxu Zhang Jinchi |
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| Institution: | Hu Haibo Wan Fuxu Zhang Jinchi (Nanjing Forestry University Nanjing 210037) Wang Chenggang Wang Jinting
(Damiao Forestry station of Xuzhou) (Shaodian Forestry shation of Xuzhou) |
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| Abstract: | The paper mainly deals with root distribution characteristics of shelter-forest belt for farmland. The conclusions are as follows:(1)In the soil of road or ditch slope, root biomass and its length rapidly decreases with the strenth of distance. The proportion of fine roots (diameter<1 mm) near forest-belt is lower than that of farther spot. (2)Compared with road, the number of the fine roots in the soil of farmland is much higher. (3) Whether in the soil of road or farmland, tree roots mainly concentrate on a range of 0-40 cm, whereas the large root in the soil of road can reach the deep soil. |
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| Keywords: | XuHuai plain area Shelter-forest belt for farmland Root distribution Biomass |
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