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花江峡谷喀斯特区土壤质量两种定量化评价方法研究
引用本文:周 玮,周运超.花江峡谷喀斯特区土壤质量两种定量化评价方法研究[J].中国岩溶,2009,28(3):313-318.
作者姓名:周 玮  周运超
作者单位:贵州大学林学院,贵州,贵阳550025
摘    要:选取贵州省花江峡谷喀斯特区5种主要的土地利用类型(灌丛、乔木林、人工林、耕地、草坡)研究土地利用方式对土壤质量的影响。研究结果表明:不同土地利用类型下土壤质量有显著差异。应用土壤质量指数法及退化指数法对花江峡谷喀斯特区不同的土地利用方式下土壤质量的变化情况进行定量化对比研究,得出相同的变化趋势,即:灌丛〉乔木林〉人工林〉耕地〉草坡。并且相关性分析表明,两种定量评价方法的土壤综合质量指数与土壤退化指数之间存在线性相关性(R^2=9.277),说明两种评价方法都能有效地反映出不同土地利用方式下土壤质量变化情况。

关 键 词:喀斯特  土地利用方式  土壤质量  评价方法  花江峡谷  贵州
收稿时间:2008/12/22 0:00:00

Study on two quantitative methods of soil quality assessment in Huajiang karst canyon
ZHOU Wei and ZHOU Yun-chao.Study on two quantitative methods of soil quality assessment in Huajiang karst canyon[J].Carsologica Sinica,2009,28(3):313-318.
Authors:ZHOU Wei and ZHOU Yun-chao
Institution:College of Forest in Guizhou university;College of Forest in Guizhou university
Abstract:Five kinds of land uses were taken to elucidate the soil quality changes in Huajiang karst canyon, Guizhou province. The results show that the soil quality changes evidently under different land uses. The soil quality under different land uses was studied by means of the soil quality index(QI) and the soil deterioration index(DI) in the paper. Results from both methods show a similar trend of soil quality under different land use condition,that is Shrubs land〉 High-forest〉Reforest land〉Arable land 〉Grassland. In addition, correlative analysis of the two methods reveal that,there is a signifficant linear correlation between DI and QI,with a R^2 value of 9. 277. Both methods are efficient in the evaluation of the soil quality levels under different land uses.
Keywords:karst  land use  soil quality  quantitative methods  Huajiang canyon  Guizhou province
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