2000年和2015年乌江中上游景观稳定性变化研究
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摘要
为评价我国西南山区景观稳定状况,基于2000年和2015年Landsat遥感影像,以乌江中上游为例,从基质稳定性、斑块特征稳定性和斑块密度稳定性3个方面对流域景观稳定性进行分析。结果表明:2000—2015年,景观基质稳定性呈下降趋势。景观斑块特征稳定性呈裸地>灌木林>草地>水域>森林>耕地>建设用地。景观斑块密度稳定性呈裸地>灌木林>草地>森林>水域>建设用地>耕地。流域景观基质稳定性、斑块特征稳定性和斑块密度稳定性指数空间异质性突出。生态治理工程及快速经济发展是影响乌江中上游景观稳定性的主要因素。
In order to evaluate the landscape stability in mountainous area of southwest China,this paper analyzed the landscape stability in middle and upper reaches of the Wujiang River from three aspects of landscape matrix stability,landscape patch stability and landscape density stability based on the Landsat remote-sensing images in 2000 and 2015.The results showed that the landscape stability decreased during the period from 2000 to 2015.Landscape patch stability showed the characteristics of bare land>shrubbery>grass>water>forest>plantation>built-up land.Landscape density stability showed the characteristics of bare land>shrubbery>grass>forest>water>built-up land>plantation.There were significant spatial heterogeneities for landscape matrix stability,landscape patch stability and landscape density stability in each watershed.Ecological projects and rapid economic development are dominant factors affecting landscape stability in middle and upper reaches of the Wujiang River.
In order to evaluate the landscape stability in mountainous area of southwest China,this paper analyzed the landscape stability in middle and upper reaches of the Wujiang River from three aspects of landscape matrix stability,landscape patch stability and landscape density stability based on the Landsat remote-sensing images in 2000 and 2015.The results showed that the landscape stability decreased during the period from 2000 to 2015.Landscape patch stability showed the characteristics of bare land>shrubbery>grass>water>forest>plantation>built-up land.Landscape density stability showed the characteristics of bare land>shrubbery>grass>forest>water>built-up land>plantation.There were significant spatial heterogeneities for landscape matrix stability,landscape patch stability and landscape density stability in each watershed.Ecological projects and rapid economic development are dominant factors affecting landscape stability in middle and upper reaches of the Wujiang River.
引文
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[2]楚纯洁,安春华.平顶山市土地利用景观格局及其稳定性分析[J].水土保持研究,2011,18(1):224-227.
[3]胡艳兴,潘竟虎.基于土地利用空间格局的兰州市景观稳定性[J].中国沙漠,2016,36(2):556-563.
[4]王旭丽,刘学录.基于RS的祁连山东段山地景观稳定性分析[J].遥感技术与应用,2009,24(5):665-669.
[5]罗格平,陈嘻,周可法,等.三工河流域绿洲时空变异及其稳定性研究[J].中国科学(D辑),2002,32(6):521-528.
[6] CREWS-MEYER K A.Agricultural landscape change and stability in northeast Thailand:historical patch-level analysis[J].Agriculture,Ecosystems and Environment,2004,101(2/3):155-169.
[7]董雅雯,佘济云,陈冬洋,等.基于箱线图的海南省东方市生态景观格局稳定性研究[J].中南林业科技大学学报,2016,36(8):104-108.
[8]彭保发,陈端吕,李文军,等.土地利用景观格局的稳定性研究:以常德市为例[J].地理科学,2013,33(12):1484-1488.
[9]巩杰,张玲玲,孙朋.近40年来酒泉肃州绿洲时空变化及景观稳定性[J].兰州大学学报(自然科学版),2014,50(3):398-404.
[10]刘世增,孙保平,李银科,等.微尺度下的荒漠绿洲景观结构数量分析与绿洲稳定性研究:以甘肃景泰县为例[J].中国沙漠,2009,29(6):1148-1152.
[11]肖化顺,付春风,张贵.流溪河国家森林公园森林景观稳定性评价[J].中南林业科技大学学报,2007,27(1):88-92.
[12] NEKROIEN6)ER,SKUODIEN6)ER.Changes of floristic composition of meadow phytocenoses,as landscape stability indicators,in protected areas in Western Lithuania[J].Polish Journal of Environmental Studies,2012,21(3):703-711.
[13] LAURO G,LISI M,MONACO R.A modeling framework for analysis of landscape stability and bifurcation phenomena[J].Rendiconti del Seminario Matematico Universitàe Politecnico Torino,2010,68(4):397-411.
[14]易武英,苏维词.基于RS和GIS技术的乌江流域生态环境质量现状诊断[J].中国岩溶,2013,32(4):447-452.
[15]刘延国,王青,王军.官司河流域景观稳定性的研究[J].地球信息科学学报,2012,14(1):137-142.
[16]刘延国,王青,王军.九寨沟自然保护区景观格局及其斑块稳定性[J].东北林业大学学报,2012,40(4):31-33.
[17]翟荣飞.基于GIS的山地流域景观格局变化及脆弱性评价:以乌江北源为例[D].贵阳:贵州师范大学,2016.
[18]许幼霞,周旭,赵翠薇,等.基于喀斯特脆弱性评价的印江流域生态安全格局构建[J].贵州师范大学学报(自然科学版),2017,35(6):22-29.