贵州省大方县人类活动对土地利用的影响

黄晓云; 王静爱; 尹卫霞; 李富华; 张春琴

doi:10.11932/karst20170407

贵州省大方县人类活动对土地利用的影响

doi: 10.11932/karst20170407

1.
贵州大学经济学院/北京师范大学地理科学学部/北京师范大学区域地理研究实验室
2.
北京师范大学地理科学学部/北京师范大学区域地理研究实验室

基金项目: 贵州大学引进人才科研项目[贵大人基合字（2015）44 号]

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出版历程
- 发布日期: 2017-08-25

Impact of human activities on land use in Dafang county, Guizhou Province

1.
School of Economics, Guizhou University, Guiyang/Faculty of Geographical Science，Beijing Normal University/Key Laboratory of Regional Geography, Beijing Normal University
2.
Faculty of Geographical Science，Beijing Normal University/Key Laboratory of Regional Geography, Beijing Normal University

摘要

摘要: 基于分区—分层—分波段方法，对贵州省大方县1988年、2001年、2009年三期TM影像进行土地利用类型分类，并对其时空变化规律进行分析。结果表明：三个时间段内耕地既有扩张也有缩减，但总体面积减少，减少幅度为33%；林地扩张范围大于退缩范围，总体面积增加，增加幅度为34%；草地面积先减少后增加，空间格局变化剧烈，总体减幅为11%；建设用地数量上持续扩张，增幅比例最大，增幅达715%。总体而言，人类活动是影响大方县土地利用数量和空间格局变化的主要原因，海拔和坡度等自然因素对耕地、林地的扩张和退缩有明显影响。
- 土地利用 /
- 人类活动 /
- 石漠化 /
- 大方县
Abstract: Under the background of climate change, it has important significance to study the temporal and spatial changes of land use in ecologically vulnerable areas, which also can reveal the regularity of land use change and influence of human activities. Rocky desertification disaster in the main forms of water loss and soil erosion badly threats land ecological security in karst areas of South China. Dafang county is located in the northwest of Guizhou Province, China, which is one of the most serious areas of rocky desertification, whether in total area or degree of rocky desertification. In this study, Dafang county was chosen as the research area. We study temporal and spatial variations of regional land use in order to provide reference for land use structure optimization and land management in karst areas.In this work, the land use classification of TM images in 1988, 2001 and 2009 in Guizhou Province is carried out using the method of partition-layered-individual wavebands. Based on the classification results, we analyze the temporal and spatial variations of images, including spatial changes of land use types and quantity changes and effects of different altitudes and slopes on spatial and temporal variations of land use types. We also discuss the influence of human activities on these variations. The results show that the total area of cultivated land was reduced by 33%, the area of forest land increased by 34%, grassland area decreased by 11%, and the area of construction land increased by 715%, respectively. The elevations of forest land, cultivated land, grassland, construction land sequentially decrease. The influence of altitude on cultivated land and forest land is relatively large. Except for the forest land, the effect of slope on the other three kinds of land use change is relatively little. Overall, human activities are the main factors influencing the change of land use quantity and spatial pattern in Dafang county, and the natural factors such as elevation and slope have significant effects on the expansion and reduction of cultivated land and forest land.
- land use /
- human activity /
- rocky desertification /
- Dafang county

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参考文献(14)

[1]	摆万奇，柏书琴．土地利用和覆盖变化在全球变化研究中的地位与作用［J］. 地域研究与开发，1999，18（4）：13-16.
[2]	李秀彬．全球环境变化研究的核心领域:土地利用/土地覆被变化的国际研究动向［J］．地理学报，1996，51（5）：554-558.
[3]	刘纪远，张增祥，徐新良，等．21世纪初中国土地利用变化的空间格局与驱动力分析［J］．地理学报，2009，64（12）：1411-1420.
[4]	路云阁，蔡运龙，许月卿．走向土地变化科学:土地利用/覆被变化研究的新进展［J］．中国土地科学，2006，20（1）：55-61．
[5]	史培军，杜鹃，叶涛，等．加强综合灾害风险研究，提高迎对灾害风险能力:从第6届国际综合灾害风险管理论坛看我国的综合减灾［J］．自然灾害学报，2006，15（5）：1-5.
[6]	史培军，李晓兵，杨劼，等．中国北方农牧交错带土地利用时空格局与优化模拟［M］．北京：科学出版社，2009.
[7]	史培军，江源，王静爱，等．土地利用/覆盖变化与生态安全响应机制［M］．北京：科学出版社，2004.
[8]	张明．以土地利用/土地覆被变化为中心的土地科学研究进展［J］．地球科学进展，2001，20（4）：298-303．
[9]	Clements F E. Research methods in ecology［J］. American Naturalist, 1905,5(1):99-101.
[10]	朱震达．中国的脆弱生态带与土地荒漠化［J］．中国沙漠，1991，11（4）：11-22.
[11]	杨廷锋.西南岩溶石山地区生态承载力的演变及动力机制：以贵州省为例［J］.中国岩溶,2016,35(3):332-339.
[12]	陈圣子, 周忠发, 闫利会.基于网格GIS的喀斯特石漠化治理过程中生态系统健康变化诊断：以贵州花江示范区为例［J］.中国岩溶,2015,34(3): 266-273.
[13]	阎守邕，全刚，张前，等．在 GIS支持下的遥感影像分类、判读与制图系统［J］．遥感信息，1995，5（1）：7-14．
[14]	李雪冬, 杨广斌, 李蔓, 等.面向对象的喀斯特地区土地利用遥感分类信息提取：以贵州毕节地区为例［J］.中国岩溶,2013,32(2):231-237.