PAN Shu-lin,ZHOU Shun-tao,GU Bin.Effect of Slope Degree and Slope Position on Soil Nutrient Variability in the Early Succession of Rocky Slope Revegetation[J].Research of Soil and Water Conservation,2012,19(04):289-292.
坡度和坡位对岩质边坡早期生态恢复土壤养分变异性的影响
- Title:
- Effect of Slope Degree and Slope Position on Soil Nutrient Variability in the Early Succession of Rocky Slope Revegetation
- Keywords:
- rocky slope; ecological restoration; soil nutrient; variability; slope position; slope angle
- 分类号:
- X171.4;S714.5
- 摘要:
- 通过对浙江省经过1 a生态恢复的16个岩质边坡，在坡面没有植被和坡面环境形成交互发展的植被早期恢复进行研究，结果表明：（1）除45°～52°类型的边坡土壤有效磷含量为坡下>坡中>坡上外，其它3个坡度类型中全氮、全磷、全钾都呈现出较明显的坡中>坡下>坡上的分布规律。（2）在相似坡度及不同坡位条件下，全氮、全钾、有机质都没有表现出显著性差异。土壤养分多重比较出现较多差异的是有效态养分。（3）在相同坡位不同坡度条件下，对岩质边坡早期生态恢复的土壤养分进行多重比较，结果发现坡度在30°～52°的情况下，岩质边坡早期生态恢复演替中的土壤养分不会受到坡度的影响。
- Abstract:
- Through the analysis on 16 rocky slopes of Zhejiang Province which had already been ecological restored for one year, in the early vegetation recovery stage when there was no interactive development between vegetation and environment on the slope, the influence of slope angle and slope position on soil nutrient variability were as follow: (1) in some rocky slopes with slope degree of 45°～52°, available P content showed consistent trends: the lower slope position>the middle slope position>the upper slope position, and the total N, total P, total K contents of other rocky slopes varied significantly: the middle slope position>the lower slope position>the upper slope position; (2) in different slope positions with similar slope degree, the total N, total K contents and organic matter had no significant differences, but soil available nutrients had showed more remarkable differences in the multiple comparisons of soil nutrients; (3) in different slope angles with the same slope position, significant differences were only found in two groups in the multiple comparisons of soil nutrients, and there was no large-scale variability of soil nutrients. In other words, in the early succession stage of rocky slope revegetation, soil nutrients wouldn’t be significantly influence by slope angle ranging from 30° to 52°.
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备注/Memo
收稿日期:2011-12-8;修回日期:2012-2-8
基金项目:国家自然科学基金“岩石边坡植被恢复土壤动态特征与调控机制研究项目”（40971057）
作者简介:潘树林（1970- ），男，四川宜宾人，副教授，硕士，从事生态环境研究。E-mail：pslytq@yahoo.com.cn。
通讯作者:辜彬（1959- ），男，四川成都人，教授，博士，从事边坡生态工程研究。E-mail：amakusa@126.com。