TAN Zhengxin,WAN Fuxu,ZHANG Bo.Evaluation of Soil Antierodibility of Different Forests in Volcanic Hilly Land of Xuyi County[J].Research of Soil and Water Conservation,2015,22(02):7-11.
盱眙火山岩丘陵区不同林地土壤抗蚀性评价
- Title:
- Evaluation of Soil Antierodibility of Different Forests in Volcanic Hilly Land of Xuyi County
- 分类号:
- S157
- 摘要:
- 以盱眙火山岩丘陵区5种不同的人工林（杨树林、杨梅林、朴树林、墨西哥柏林、桃树林）为研究对象，通过对土壤水稳性团聚体特征、有机质含量等指标的测定与分析，研究了人工林对土壤可蚀性的影响。对林地土壤的抗蚀性指标进行主成分分析和相关性分析将10个抗蚀指标降到了4个：> 0.5 mm水稳性团聚体含量、 > 0.25 mm水稳性团聚体含量、团聚体稳定性指数、有机质含量。并运用回归分析建立了不同林分下土壤抗蚀性综合评价模型Y=0.073X4+1.066X5+9.261X9+0.554X10-64.939。结果表明杨树林地土壤的抗蚀性在5种林分中是最好的。
- Abstract:
- The soil erodibility of five artificial forestlands in volcanic hilly land of Xuyi County, such as Populus L,Amygdalus persica L, Myrica rubra (Lour) S. et Zucc, Celtis sinensis Pers, Cupressus lusitanica, were investigated by measuring and analyzing the characters of soil water-stable aggregates and organic matter contents. Principal component analysis (PCA) and correlation analysis were used to examine the anti-erodibility of forest soils in 5 different types of forestlands. The result shows that 10 indexes can be reduced to the 4 ones, which are > 0.25 mm and > 0.5 mm water-stable aggregates, soil aggregate stability index, content of soil organic matter. Then we can build the comprehensive evaluation model of different forests, anti-erodibility, the comprehensive antierodibility(Y=0.073X4+1.066X5+9.261X9+0.557X10-64.939).It is suggested that the antierodibility of Populus L forestland is the best.
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备注/Memo
收稿日期:2014-05-28;改回日期:2014-07-18。
基金项目:江苏省林业三新工程（LYSX[2012]10）；PAPD资助项目
作者简介:谈正鑫(1990-),男,安徽宣城人,硕士研究生,研究方向:林业生态工程。E-mail:773560611@qq.com
通讯作者:万福绪(1952-),男,江苏赣榆人,教授,研究方向:林业生态工程。E-mail:fxwan@njfu.edu.cn