干旱区生态环境知识资源中心(Arid): 甘肃民勤连古城国家级自然保护区土地荒漠化特征分析

Arid

	甘肃民勤连古城国家级自然保护区土地荒漠化特征分析
其他题名	Analysis of land desertification characteristics in Liangucheng National Nature Reserve in Minqin,Gansu Province
	马静 1; 单立山 1; 孙学刚 1; 赵秀兰 1; 闫好原 2; 张有佳 2; 胡生新 2; 曾新德 2
来源期刊	甘肃农业大学学报
ISSN	1003-4315
出版年	2019
卷号	54 期号:3 页码:99-107
中文摘要	【目的】了解甘肃民勤连古城国家级自然保护区荒漠化土地现状和空间分布特征.【方法】基于遥感影像数据和地面调查相结合的方法,对保护区内荒漠化类型、程度、分布进行了调查.【结果】1)保护区荒漠化土地表现为风蚀荒漠化和盐渍荒漠化两种类型,以风蚀荒漠化为主,面积为383692.68 hm~2,占保护区荒漠化土地总面积的99.30%.2)保护区荒漠化程度较重,以极重度荒漠化和重度荒漠化为主,占保护区荒漠化土地面积的65.20%;两种荒漠化类型发生的荒漠化程度不同,风蚀荒漠化发生程度较重,以极重度和重度荒漠化为主,占风蚀荒漠化土地总面积的65.59%,而盐渍化荒漠化发生的程度相对较轻,以中度荒漠化为主,占盐渍化荒漠化土地总面积的83.31%.3)保护区不同的土地利用类型中林地用地和未利用土地占有的荒漠化土地面积最大,占保护区荒漠化土地面积的89.56%,且以风蚀荒漠化为主,面积达343558.65 hm~2;不同土地利用类型发生荒漠化的程度不同,林地和耕地荒漠化程度以中度为主,分别占林地和耕地荒漠化面积的43.01%和87.42%,草地以重度为主,占草地荒漠化面积的63.20%,未利用地以极重度为主,占未利用地荒漠化面积的89.28%.【结论】甘肃民勤连古城国家级自然保护区土地荒漠化类型单一以风蚀为主,荒漠化发生程度较重,以极重度和重度为主,且主要存在未利用地中,开展林业生态工程建设和封育保护减少人为破坏是遏制保护区荒漠化发展的有效途径.
英文摘要	【Objective】To find out the situation and spatial distribution of desertification land in Minqin Liangucheng National Nature Reserve of Gansu.【Method】Based on the combination of remote sensing image data and ground survey,the types,degrees and distribution of desertification in research area were studied.【Result】The desertification land area in the reserve was mainly performed as wind erosion and saline,in which wind erosion was the main form,with an area of 383 692.68 hm~2,accounting for 99.30%of the total desertification land in the reserve.The degree of desertification in nature reserve was serious,mainly in extremely severe and severe degrees,accounting for 65.20%of the desertification land area in the nature reserve.The degree of occurrence of two types of desertification was different.The degree of wind erosion desertification was more serious,mainly in extremely severe and severe desertification,accounting for 65.59%of the total area of wind erosion desertification land,while the degree of salinization desertification was relatively light,mainly in moderate desertification,accounting for 83.31%of the total area of saline desertification land.The largest area of desertification land was from the forest land and unused land,accounting for 89.56%of the desertification land area of the reserve,and it was dominated by wind erosion,with an area of 343 558.65 hm~2;Different land use types showed different degrees of desertification,the desertification degrees of forest land and cultivated land were mainly moderate,accounting for 43.01% and 87.42%respectively.The desertification degree of grassland was mainly severe,accounting for 63.20% of the grassland desertification area.And it was mainly extremely severe for unused land,accounting for 89.28%of the unused land desertification area.【Conclusion】Wind erosion was the main type of desertification in Minqin Liangucheng National Nature Reserve,Gansu Province,and mainly existed in unused land,the degree of desertification was extreme and severe degrees.
中文关键词	连古城国家级自然保护区 ; 荒漠化类型 ; 荒漠化程度 ; 遥感技术
英文关键词	Liangucheng National Nature Reserve desertification type desertification degree remote sensing technique
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6537582
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239083
作者单位	1.甘肃农业大学林学院, 兰州, 甘肃 730070, 中国; 2.甘肃民勤连古城国家自然保护区, 民勤, 甘肃 733300, 中国
推荐引用方式 GB/T 7714	马静,单立山,孙学刚,等. 甘肃民勤连古城国家级自然保护区土地荒漠化特征分析[J]. 甘肃农业大学,2019,54(3):99-107.
APA	马静.,单立山.,孙学刚.,赵秀兰.,闫好原.,...&曾新德.(2019).甘肃民勤连古城国家级自然保护区土地荒漠化特征分析.甘肃农业大学学报,54(3),99-107.
MLA	马静,et al."甘肃民勤连古城国家级自然保护区土地荒漠化特征分析".甘肃农业大学学报 54.3(2019):99-107.