干旱区生态环境知识资源中心(Arid): 滇东喀斯特地区石漠化时空演化特征研究--以曲靖市为例

Arid

	滇东喀斯特地区石漠化时空演化特征研究--以曲靖市为例
其他题名	Spatial-temporal evolution characteristics of rocky desertification in karst area of Qujing city,eastern Yunnan province
	卢涛; 胡文英; 张军
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2021
卷号	35 期号:8 页码:1003-7578
中文摘要	以1987-2020年12期Landsat TM/OLI影像为数据源,结合RS与GIS方法定量探究曲靖市石漠化时空动态演化特征。结果表明:1)曲靖市不同程度石漠化主要集中连片分布于峰丛洼地、丘陵以及河谷地带及各县交界处,整体上呈东南部重、中部和西北部轻的宏观格局。2)1987-2020年间,曲靖市潜、轻、中、重和极度石漠化面积占比分别从8.56%、9.71%、4.85%、0.98%、0.35%减少到8.35%、9.29%、4.32%、0.79%和0.29%。其中,潜在、轻度和中度石漠化面积变化较为反复,年均变化率分别为0.16%、-0.22%和-0.19%。重度和极度石漠化减幅较大,年均变化率分别为-0.56%和-0.32%。3)近30年来,曲靖市石漠化状况基本得到遏制,但局部区域仍存在高度不稳定性,存在趋于恶化的风险。今后应当重视潜在和轻度石漠化区域的演化情况,因地制宜开展石漠化综合治理,以实现不同程度石漠化区域的精准治理。
英文摘要	Based on the Landsat TM/OLI images of 12 periods from 1987 to 2020,the spatial-temporal dynamic evolution characteristics of karst rocky desertification in Qujing city were quantitatively studied by RS and GIS methods.The results showed that:1)Rocky desertification of different degrees in Qujing city is mainly distributed in the peak cluster depression,hills,valley and the intersections of counties,and the overall macro pattern is serious in the southeast,light in the middle and northwest.2)From 1987 to 2020,the area proportions of potential,light,moderate,serious and extreme rocky desertification in Qujing city decreased from 8.56%,9.71%,4.85%,0.98% and 0.35% to 8.35%,9.29%,4.32%,0.79% and 0.29%,respectively.The changes of potential,light and moderate rocky desertification were more unsteady,the average annual change rates of that were 0.16%、-0.22% and-0.19%,respectively.The changes of severe and extreme rocky desertification tended to be stable with the average annual change rates of-0.56% and-0.32%,respectively.3)In the past 30 years,rocky desertification in Qujing city has been basically controlled,but there is still a high degree instability in some regions,or the risk of deterioration.In the future,in terms of the comprehensive control of rocky desertification,it should pay attention to the evolution of potential and light rocky desertification regions,and implement comprehensive control measures according to local conditions,so as to take targeted measures for different degrees of karst rocky desertification regions.
中文关键词	喀斯特 ; 石漠化 ; 时空演化 ; 曲靖市
英文关键词	karst rocky desertification spatial temporal evolution Qujing city
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Geology
CSCD记录号	CSCD:7011553
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365090
作者单位	卢涛, 云南师范大学地理学部;;云南省高校资源与环境遥感重点实验室, ;;云南省高校资源与环境遥感重点实验室, 昆明;;昆明, ;; 650050;;650500.; 胡文英, 云南师范大学地理学部;;云南省高校资源与环境遥感重点实验室, ;;云南省高校资源与环境遥感重点实验室, 昆明;;昆明, ;; 650050;;650500.; 张军, 云南大学地球科学学院, 昆明, 云南 650504, 中国.
推荐引用方式 GB/T 7714	卢涛,胡文英,张军. 滇东喀斯特地区石漠化时空演化特征研究--以曲靖市为例[J],2021,35(8):1003-7578.
APA	卢涛,胡文英,&张军.(2021).滇东喀斯特地区石漠化时空演化特征研究--以曲靖市为例.干旱区资源与环境,35(8),1003-7578.
MLA	卢涛,et al."滇东喀斯特地区石漠化时空演化特征研究--以曲靖市为例".干旱区资源与环境 35.8(2021):1003-7578.