京杭运河淮安段水利防护林群落护堤防蚀效应

生态与农村环境学报 ›› 2013, Vol. 29 ›› Issue (6): 705-710.doi:

京杭运河淮安段水利防护林群落护堤防蚀效应

李冬林,季永华,戴小琳,刘劲松,丁晶晶

江苏省林业科学研究院

收稿日期:2013-03-03 修回日期:2013-10-20 出版日期:2013-11-25 发布日期:2013-12-03
作者简介:李冬林（1969-），男，河南?睢县人，研究员级高级工程师，博士，主要研究方向为植物生态学和环境生态学。E-mail:lidonglin126@126.com
基金资助:
江苏省水利科技项目(2012094);江苏省自然科学基金重点项目(BK2010094)

Effect of Riverside Shelter Forest Communities Protecting Embankment From Erosion in Huai’an Section of the Beijing-Hangzhou Grand Canal

LI Dong-Lin, JI Yong-Hua, DAI Xiao-Lin, LIU Jin-Song, DING Jing-Jing

Received:2013-03-03 Revised:2013-10-20 Online:2013-11-25 Published:2013-12-03

摘要/Abstract

摘要： 对京杭运河淮安段水利防护林群落的护堤防蚀效应进行了研究。结果表明，防护林植被可以明显改善地表土壤物理性能，明显增加土壤总孔隙度和毛管孔隙，降低土壤容重。不同植物群落对地表土壤的护堤防蚀效应明显不同。早熟禾群落和女贞群落可以有效提高土壤有机质含量和土壤通气蓄水效应。有植被分布的地表土壤抗蚀性比裸地显著增强(P<0.05)。相对而言，早熟禾群落土壤水稳性指数最大（0.892），其余依次为女贞群落(0.835)、梨树群落(0.791)、桃树群落(0.530)、水杉群落（0.397）和裸地（0.341）。植物群落土壤的抗蚀性同植物根系生物量、根数和土壤有机质分别呈显著正相关(P<0.01)。

关键词: 京杭运河, 水利防护林, 护堤防蚀效应, 土壤抗蚀性, 植物群落

Abstract: Effect of riverside shelter forest communities protecting embankment from erosion in the Huai’an section of the Beijing-Hangzhou Grand Canal was studied. It was found that the shelter forests significantly improved physical properties of the soil by increasing total porosity and capillary porosity, and decreasing soil bulk density. The effect varied with the composition of the vegetation community. Poa annua communities and Ligustrum lucidum communities significantly increased the content of soil organic matter, soil aeration and water holding capacity. Of the embankment, sections covered with vegetation were significantly higher in erosion resistance than those of bare land. Relatively speaking, the soil under Poa annua community was the highest in soil erosion resistance (0.892), and followed by those under Ligustrum lucidum (0.835), Pyrus bretschneideri (0.791), Prunus persica (0.530), and Metasequoia glyptostroboides (0.397), and bare land (0.341). Positive relationships were observed of soil erosion resistance with root biomass, average root number, and soil organic matter content with correlation coefficient being 0.9611, 0.9659 and 0.7742, respectively.

Key words: the Grand Canal, riverside shelter forest, effects of protecting embankment from erosion, soil erosion resistance, plant community

中图分类号:

X173

李冬林, 季永华, 戴小琳, 刘劲松, 丁晶晶. 京杭运河淮安段水利防护林群落护堤防蚀效应[J]. 生态与农村环境学报, 2013, 29(6): 705-710.

LI Dong-Lin, JI Yong-Hua, DAI Xiao-Lin, LIU Jin-Song, DING Jing-Jing. Effect of Riverside Shelter Forest Communities Protecting Embankment From Erosion in Huai’an Section of the Beijing-Hangzhou Grand Canal[J]. Journal of Ecology and Rural Environment, 2013, 29(6): 705-710.

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