干旱区生态环境知识资源中心(Arid): 麻窝山小流域石漠化景观格局变化特征

Arid

	麻窝山小流域石漠化景观格局变化特征
其他题名	Landscape Patterns of Rocky Desertification in the Mawoshan Karst Basin of Northwest Guizhou Province
	陈昊; 吴攀; 刘沛; 顾尚义; 曹振兴
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2012
卷号	19 期号:4 页码:239-243
中文摘要	针对受自然和经济因素限制,历史资料较为匮乏的贵州省威宁县麻窝山喀斯特岩溶盆地,利用不同时期的遥感影像数据揭示其石漠化景观的发展过程。以多时相多种遥感影像(MSS、ETM+和AVNIR-2)为主要数据源,借助GIS平台和数理统计分析方法,从流域内石漠化的时空分布特点、植被退化特征和土壤侵蚀的角度分析研究区33a来的石漠化动态变化。结果表明,流域内石漠化的形成和发展主要受人为因素的控制,并且其规模呈明显的扩张趋势。其中,在石漠化发展的前期(19772002年)和后期(20022010年),分别表现为迅速扩张和平缓增加的特点,石漠化面积增量分别为0.42km~2和0.12km~2。同时,19802009年间,强烈的人为活动导致了较为严重的土壤侵蚀,侵蚀模数达到3 983.15t/(km~2.a)。
英文摘要	As the limit by natural and economic factors and the lack of historical data,remote sensing images collected in different periods were used to reveal the development process of karst rocky desertification landscape in Mawoshan basin of Weining county,Guizhou Province.GIS and statistics analysis methods were used to analyze a karst rocky desertification distribution over the past 33 years based on remote sensing images(MSS,ETM+ and AVNIR-2) obtained in different periods.The temporal and spatial distribution characteristics of rocky desertification,vegetation degradation features and soil erosion were evaluated based on the analysis and previous research achievements.The results showed that,with expanding trend of the scale,the formation and development of rocky desertification of the Mawoshan watershed was greatly controlled by human activities.Early(19772002) and late(20022010) periods of rocky desertification presented rapid expanding and slow increase,respectively.The increase of rocky desertification areas of these two periods were 0.42 km~2 and 0.12 km~2,respectively.From 1980 to 2010,the human controlled erosion modulus reached 3 983.15 t/(km~2·a) because of soil erosion resulted from intensive human activities.
中文关键词	麻窝山 ; 岩溶盆地 ; 遥感 ; 石漠化 ; 侵蚀模数
英文关键词	GIS Mawoshan karst basin remote sensing GIS rocky desertification erosion modulus
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:4618304
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228628
作者单位	贵州大学资源与环境工程学院, 贵阳, 贵州 550003, 中国
推荐引用方式 GB/T 7714	陈昊,吴攀,刘沛,等. 麻窝山小流域石漠化景观格局变化特征[J],2012,19(4):239-243.
APA	陈昊,吴攀,刘沛,顾尚义,&曹振兴.(2012).麻窝山小流域石漠化景观格局变化特征.水土保持研究,19(4),239-243.
MLA	陈昊,et al."麻窝山小流域石漠化景观格局变化特征".水土保持研究 19.4(2012):239-243.