通辽市草原退化沙化盐渍化状况调查
Investigation on salinization of grassland degradation and desertification in Tongliao
超乐萌 1张健 2陈翔 3张全民 2韩海波 1何嘉1
作者信息
- 1. 内蒙古自治区林业和草原监测规划院,呼和浩特 010030
- 2. 蒙草生态环境(集团)股份有限公司,呼和浩特 010070;国家草业技术创新中心(筹),呼和浩特 010070
- 3. 蒙草生态环境(集团)股份有限公司,呼和浩特 010070
- 折叠
摘要
采用收集资料、地面调查结合遥感信息提取的方法,获取通辽市科尔沁草原区域退化、沙化、盐渍化草原分布及面积数据,在调查及访问的基础上,分析全市草原退化、沙化、盐渍化程度.通辽市天然草原"三化"类型中,退化草原面积占全市草原面积占 47.65%,沙化草原占 27.37%,盐渍化草原占 5.29%;"三化"程度中,轻度"三化"草原面积占全市草原面积的 33.39%,中度"三化"面积占 23.5%,重度"三化"占 23.42%.从上世纪80 年代、2000 年、2018 年"三化"草原变化程度看,全市"三化"面积呈现先增加后减少的趋势.掌握通辽市科尔沁草原退化、沙化、盐渍化状况,可为全面保护、综合修复科尔沁草原提供基础依据.
Abstract
The distribution and area data of degraded,sandy and salinized grassland in Horqin grassland of Tongliao were obtained by means of data collection,ground survey and remote sensing information extraction.Based on investigation and interview,the degree of grassland degradation,sandy and salinized in Tongliao city was analyzed.Among the three types of degradation of natural grassland in Tongliao city,the area of degraded grassland accounted for 47.65%,sandy grassland accounted for 27.37%,and salinized grassland accounted for 5.29%.In the degree of"three degradation",the area of mild"three degradation"grassland accounted for 33.39%of the city's grassland area,the area of moderate"three degradation"accounted for 23.5%,and the area of severe"three degradation"accounted for 23.42%.From the point of view of the change degree of the"three degradation"grassland in the 1980s,2000 and 2018,the"Three Degeneration"area of the city showed a trend of first increasing and then decreasing.Understanding the degradation,desertification and salin-ization of Horqin grassland in Tongliao city can provide a basis for comprehensive protection and comprehensive restoration of Horqin grassland.
关键词
遥感/草原退化/通辽市/科尔沁Key words
Remote sensing/grassland degeneration/tongliao city/Horqin引用本文复制引用
出版年
2024
NETL
NSTL
万方数据