喀斯特山区植被退化过程中的土壤质量变化及评价

陈祖拥; 刘 方; 王世杰; 刘元生; 通达; 朱 健

doi:10.11932/karst20160605

喀斯特山区植被退化过程中的土壤质量变化及评价

doi: 10.11932/karst20160605

1.
贵州大学资源与环境工程学院
2.
中国科学院地球化学研究所/环境地球化学国家重点实验室
3.
贵州大学农学院

基金项目: 国家重点研发计划(2016YFC0502300)；贵州省科技创新人才团队建设计划(黔科合人才团队[2013]4020)

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出版历程
- 发布日期: 2016-12-25

The evaluation of soil quality evolution in the process of vegetation degradation in karst mountain area

1.
College of Resource and Environmental Engineering of Guizhou University
2.
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences
3.
Collage of Agriculture

摘要

摘要: 为构建喀斯特山区土壤质量评价体系，通过对喀斯特山区植被退化过程中的小生境土壤进行调查，选用土面和石沟2种代表性小生境的土壤作为评价单元，用典范对应分析从29个指标中选出16个，通过因子分析法对土壤质量进行定量综合评价。结果表明：在喀斯特森林植被退化过程中，用土面和石沟2种小生境面积加权计算土壤质量综合分值，能更准确地反映植被退化过程中土壤质量的阶段性变化，具体可分为3个阶段，不同阶段之间土壤活性有机碳、碱解氮、速效磷、速效钾、有效锰、有效硫和脲酶活性出现显著降低，有效铁、蔗糖酶活性和粘粒含量出现显著增加。第Ⅰ阶段内（原生林-次生林）各土壤指标在样地间没有明显的差异；第Ⅱ阶段（灌木林）土壤活性有机碳、碱解氮、速效磷、速效钾、有效硫、脲酶活性和有效锰含量相对第Ⅰ阶段平均分别下降了33.73%、22.41%、57.66%、37.72%、44.59%、46.57%和12.52%；蔗糖酶活性及土壤粘粒含量平均分别增加了81.38%和47.69%；第Ⅲ阶段（灌草丛）土壤速效磷、脲酶活性、碱性磷酸酶活性和有效锰含量相对第Ⅱ阶段平均分别下降了42.82%、44.42%、28.45%和20.55%，土壤有效铁、粘粒含量平均分别增加了56.40%、57.49%，该阶段的土壤速效磷、速效钾含量已处于缺乏的水平，土壤质量明显下降。
- 喀斯特山区 /
- 植被退化 /
- 小生境 /
- 土壤质量退化 /
- 典范对应分析 /
- 因子分析 /
- 评价
Abstract: To evaluate karst mountain soil quality due to the degradation of vegetation, this paper selected two representative microhabitat soils, i.e. the surface and rocky gully soils, as evaluation units for the construction of karst mountain soil quality evaluation system. 16 indexes were selected from 29 indexes using the canonical correspondence analysis, and the soil quality was discussed by using the comprehensive evaluation method of factor analysis. The results showed that, in the process of vegetation degradation in karst forest, using weighting calculation with the areas of the said two microhabitats to obtain the soil quality synthesis score can more accurately reflect the changes of soil quality due to the vegetation degradation at various phases; and these changes can be specifically divided into 3 phases. During these phases, the concentrations of soil active organic carbon, available N, available P, available K, available Mn, available S and urease all significantly decreased, while the available Fe, sucrase and clay contents significantly increased. In Phase I with vegetation represented by original-secondary forest, no significant difference was found in soil indicators between the sample plots. In Phase II (as represented by shrub wood), the contents of soil active organic carbon, available N, available P, available K, available S and urease and the content of available Mn respectively decreased by 33.73%, 22.41%, 57.66%, 37.72%, 44.59%, 46.57% and 12.52% in average, compared to those of Phase I; and the sucrase activity and soil clay content respectively increased by 81.38% and 47.69% in average. In Phase III (as scrub-grassland soil), the concentrations of soil available P, urease and alkaline phosphatase and available Mn decreased by 42.82%, 44.42%, 28.45% and 20.55%, respectively, compared to Phase II; the content of soil available Fe and clay content respectively increased by 56.40% and 57.49% in average. In this phase, the contents of soil available P and available K become very scarce, which leads to significant decrease of the soil quality.
- karst mountain area /
- vegetation degradation /
- microhabitat /
- soil quality deterioration /
- canonical correspondence analysis /
- factor analysis /
- evaluation

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参考文献(22)

[1]	周政贤主编．茂兰喀斯特森林科学考察集［M］．贵阳:贵州科学技术出版社, 1987, 37-41．
[2]	李阳兵, 谢德体, 魏朝富．岩溶生态系统土壤及表生植被某些特性变异与石漠化的相关性［J］．土壤学报, 2004, 41(2):196-173．
[3]	李阳兵, 王世杰, 王济．岩溶生态系统的土壤特性及其今后研究方向［J］．中国岩溶, 2006, 25(4):283-288．
[4]	龙健, 李娟, 汪境仁, 等．典型喀斯特地区石漠化演变过程对土壤质量性状的影响［J］．水土保持学报, 2006, 20(2):77-82．
[5]	刘方, 王世杰, 刘元生, 等．喀斯特石漠化过程土壤质量变化及生态环境影响评价［J］．生态学报, 2005, 25(3):640-646．
[6]	龙健, 李娟, 江新荣, 等．贵州茂兰喀斯特森林土壤微生物活性的研究［J］．土壤学报, 2004, 41(4):597-602．
[7]	刘玉杰, 王世杰, 刘秀明, 等．茂兰保护区小生境土壤微生物活性研究［J］．地球与环境, 2011, 39(3): 285-291．
[8]	李静鹏, 徐明锋, 苏志尧, 等．不同植被恢复类型的土壤肥力质量评价［J］．生态学报, 2014(9):1-17．
[9]	朱新玉, 胡云川, 芦杰．豫东黄河故道湿地土壤生物学性状及土壤质量评价［J］．水土保持研究, 2014(02):27-32．
[10]	赵娜, 孟平, 张劲松, 等．华北低丘山地不同退耕年限刺槐人工林土壤质量评价［J］．应用生态学报, 2014, 25(2): 351-358．
[11]	王世杰, 卢红梅, 周运超, 等．茂兰喀斯特原始森林土壤有机碳的空间变异性与代表性土样采集方法［J］．土壤学报, 2007, 44(3):475-483．
[12]	朱守谦主编．喀斯特森林生态研究(Ⅲ) ［M］．贵阳:贵州科技出版社, 2003, 38-42．
[13]	刘玉杰，王世杰，刘秀明，等. 茂兰喀斯特植被演替中土壤微生物量碳氮研究［J］. 地球与环境，2011, 39(2): 188-195．
[14]	刘方, 王世杰, 罗海波, 等. 喀斯特森林生态系统的小生境及其土壤异质性［J］. 土壤学报, 2008, 45(6):1055-1062.
[15]	鲁如坤．土壤农业化学分析法［M］．北京:中国农业科技出版社,1998：12-108．
[16]	关松荫．土壤酶及其研究法［M］．北京:农业出版社, 1986：228-254．
[17]	蔡红, 沈仁芳．改良茚三酮比色法测定土壤蛋白酶活性的研究［J］.土壤学报, 2005, 42(2):307-313．
[18]	郭明, 康蒙, 仲强, 等. 浙江天童森林退化和受损对土壤呼吸的影响［J］. 华东师范大学学报(自然科学版), 2011，(4):53-60.
[19]	罗海波, 蒲通达, 陈祖拥, 等. 贵州南部喀斯特植被群落变化对小生境土壤养分的影响［J］. 贵州农业科学, 2010, 38(6): 112-115.
[20]	刘占锋, 傅伯杰, 刘国华, 等. 土壤质量与土壤质量指标及其评价［J］. 生态学报, 2006, 26(03): 901-913．
[21]	Larson W E, Pierce F J. Conservation and enhancement of soil quality［C］//Evaluation for sustainable land management in the developing world: proceedings of the International Workshop on Evaluation for Sustainable Land Management, Chiang Rai, Thailand, September 15-21 1991. Bangkok, Thailand: International Board for Soil Research and Management Press, 1991.
[22]	Frankenberger W T, Dick W A. Relationships between enzyme activities and microbial growth and activity indices in soil［J］.Soil Science Society of America Journal, 1983, 47(5):945-951.