广西植物Issue(4)：460-466,7.DOI:10.3969/j.issn.1000-3142.2014.04.006
不同土地利用方式对桂西南岩溶山地土壤酶活性的影响
Effects of different land-use types on soil enzyme activity in karst mountain areas of Southwest Guangxi
摘要
Abstract
Five kinds of land use types with the same altitude at a typical rocky desertification mountainous region of Pingguo County in Guangxi were chosen to investigate the changes in soil enzyme activity under different land use in karst mountain areas of Southwest Guangxi.Five kinds of land use included secondary forest (SF),bushwood (B), waste grassland (WG),waste land (WL)and cropland (C).The results showed that different land use types signifi-cantly influenced the enzyme activity.Soil urease,proteinase,amylase,alkaline phosphatase,acid phosphatase,peroxi-dase,polyphenol oxidase and cellulose behaved the same change besides of invertase.The rate order of soil enzyme ac-tivity was SF>B>C>WG>WL relatively.With an exception of polyphenol oxidase,soil enzymes with the same land use at wet season were higher than that in dry season on the whole.Correlation analysis showed a significant re-lation among soil urease,proteinase,amylase,alkaline phosphatase,cellulose,polyphenol oxidase and so on,which also related soil nutrition content with indicators,therefore,soil enzyme could be useful for reflecting soil quality.The sig-nificant difference was observed in different land use types owing to special factors such as framing soil micro-environ-ment and plant species composition.Now,human interference was inevitable in this region,in order to realize the healthy development in typical rocky desertification mountainous region of Pingguo County in Guangxi,the soil en-zyme changes should be taken into consideration,the land use types with rare disturbance and woodland restoration mode of land use should be chosen as far as possible.关键词
岩溶山地/土地利用方式/土壤酶活性Key words
karst mountain areas/land-use types/soil enzyme activity分类
农业科技引用本文复制引用
徐广平,顾大形,潘复静,孙英杰,罗艾滢,何成新,黄玉清..不同土地利用方式对桂西南岩溶山地土壤酶活性的影响[J].广西植物,2014,(4):460-466,7.基金项目
国家自然科学基金(41361057) （41361057）
广西自然科学基金(2012GXNSFBA053074) （2012GXNSFBA053074）
中国科学院“西部之光”人才培养计划项目(科发人教字[2011]180号) （科发人教字[2011]180号）
国家科技支撑计划项目(2011BAC09B02) （2011BAC09B02）
广西植物研究所基本业务费(桂植业11004) （桂植业11004）
岩溶动力学重点实验室基金(KDL2011-09) （KDL2011-09）
