Based on land rocky desertification and land use data in 2004(scale: 1:50000),the land use types distribution in different rock types and occurrence ratio of rocky desertification in different land use types at Zhudong,Hongguo and Baoji rocky desertification landscapes which are located in Panxian County,Guizhou Province,were studied quantitatively.Results indicate that slight rocky desertification land is distributed in shrub land mainly,and the rocky desertification in sloping cropland accounts for 11.67% of it;moderate rocky desertification is distributed in moderate coverage grass slopes mainly,intense rocky desertification is distributed in rocky dry-land which is difficult to use,showing that the slight and moderate rocky desertification were resulted from artificial causes,intense and very intense rocky desertification were induced by both of artificial causes and bad natural factors probably in Zhudong area.The slight and moderate rocky desertification lands were resulted from anthropogenic factors and the intense and very intense rocky desertification by natural factors at Baoji area.The natural conditions in Hongguo are superior than other two districts,so the occurrence of rocky desertification,particularly the intense rocky desertification were induced by intense land use,for example,there were moderate and very intense rocky desertification in sloping cropland.Rehabilitation measures correlated highly with different formation causes of karst rocky desertified lands,it was necessary to take the land use genesis types and its spatial difference into consider when design the control emphasis and rehabilitation models.
LI Yang-Bing, SHAO Jing-An, ZHOU Guo-Fu, LONG Jian
. Genesis Difference of Rocky Desertification in Karst Mountains——A Case Study of Panxian County,Guizhou Province[J]. SCIENTIA GEOGRAPHICA SINICA, 2007
, 27(6)
: 785
-790
.
DOI: 10.13249/j.cnki.sgs.2007.06.785
[1] Wang S J,Li R L,Sun C X,et al.How types of carbonaterock assemblages constrain the distribution of karst rocky desertified land in Guizhou Province,P R China:Phenomena and Mechanisms[J].Land Degradation & Development,2004,15:123-131.
[2] 黄秋昊,蔡运龙.基于RBFN模型的贵州省石漠化危险度评价[J].地理学报,2005,60(5):771~778.
[3] 李阳兵,高明,邵景安,等.岩溶山区不同植被群落土壤生态系统特性研究[J].地理科学,2005,25(5):606~613.
[4] Olatunde Akinola M,Ken Thompson,Buckland S M.Soil seed bank of an upland calcareous grassland after 6 years of climate and management manipulations[J].Journal of Applied Ecology,1998,35:544-552.
[5] 龙健,邓启琼,江新荣,等.贵州喀斯特石漠化地区土地利用对土壤质量恢复能力的影响[J].生态学报,2005,25(12):3188~3195.
[6] 李阳兵,侯建筠,谢德体.中国西南岩溶生态研究进展[J].地理科学,2002,22(3):365~370.
[7] 王德炉,朱守谦,黄宝龙.喀斯特石漠化的形成过程及阶段划分[J].南京林业大学学报(自然科学版),2005,29(3):103~106.
[8] 万国江,白占国.论碳酸盐岩侵蚀与环境变化-以黔中地区为例[J].第四纪研究,1998,18(3):279.
[9] 张殿发,王世杰,周德全,等.贵州喀斯特地区石漠化的内动力机制[J].水土保持通报,2001,21(4):1~5.
[10] 李阳兵,王世杰,容丽.西南岩溶山区生态危机与反贫困的可持续发展文化反思[J].地理科学,2004,24(2):157~162.
[11] 蔡运龙,蒙吉军.退化土地的生态重建:社会工程途径[J].地理科学,1999,19(3):198~204.
[12] 李阳兵,王世杰,容丽.关于喀斯特石漠和石漠化概念的讨论[J].中国沙漠,2004,24(6):689~695.
[13] 田亚平,彭补拙,谢庭生.一种荒漠化土地分类的新尝试[J].第四纪研究,2001,21(3):279.
[14] 吴秀芹,蔡运龙,蒙吉军.喀斯特山区土壤侵蚀与土地利用关系研究--以贵州省关岭县石板桥流域为例[J].水土保持研究,2005,12(4):46~48,77.
[15] 万军,蔡运龙,张惠远,等.贵州关岭县土地/土地覆被变化及其土壤侵蚀效应研究[J].地理科学,2004,24(5):573~579.
[16] 喻理飞,朱守谦,叶镜中.人为干扰与喀斯特森林群落退化及评价研究[J].应用生态学报,2002,13(5):529~532.
[17] 王小丹,钟祥浩,范建容.金沙江干热河谷元谋盆地冲沟沟头形态学特征研究[J].地理科学,2005,25(3):63~67.
[18] 孔亚平,张科利,杨红丽.土壤可蚀性模拟研究中的坡长选定问题[J].地理科学,2005,25(3):374~378.
[19] 第宝锋,杨忠,艾南山,等.基于RS与GIS的金沙江干热河谷区退化生态系统评价--以云南省元谋县为例[J].地理科学,2005,25(4):484~489.
[20] 罗勇,张百平.基于山地垂直带谱的秦岭土地利用空间分异[J].地理科学,2006,26(5):574~587.
[21] 包慧娟,李振山,王涛.沙漠化地区可持续发展的概念模型[J].地理科学,2007,27(2):173~176.
[22] 朱永恒,濮励杰,赵春雨.景观生态质量评价研究--以吴江市为例[J].地理科学,,2007,27(2):182~187.
[23] 闫业超,张树文,岳书平.克拜东部黑土区侵蚀沟遥感分类与空间格局分析[J].地理科学,,2007,27(2):193~199.
[24] 王世杰,李阳兵.生态建设中的喀斯特石漠化分级问题[J].中国岩溶,2005,24(3):192~195.
[25] 李阳兵,王世杰,容丽,等.不同石漠化程度岩溶峰丛洼地系统景观多样性的比较[J].地理研究,2005,24(3):371~378.