达赉湖自然保护区湿地变化特征分析  

Analysis on the Characteristics of Wetland Changes in Dalai Lake Nature Reserve

作　　者：梅荣[1] Meirong(Hulunbuir University,Hailar,Inner Mongolia 021008)

机构地区：[1]呼伦贝尔学院,内蒙古海拉尔021008

出　　处：《呼伦贝尔学院学报》2021年第4期78-83,92,共7页Journal of Hulunbuir University

基　　金：2019年呼伦贝尔学院科学技术处一般项目“基于GIS的内蒙古民俗类‘非遗’空间分布的成因分析与利用策略研究”(2019JYYB06)。

摘　　要：本文以北方绿色生态屏障之一的达赉湖自然保护区为研究区域,利用1976年、1989年、2000年、2010年、2018年共5期遥感影像数据,运用动态度、马尔科夫转移模型,对1976-2018年间达赉湖自然保护区湿地变化进行定量分析。结果表明:1976-2018年,达赉湖自然保护区湿地面积呈减少趋势,42a共减少了25026hm 2;各个研究时段动态度差异显著,2000-2010年,动态度达到37.3%,而1989-2000年,动态度仅为-1.7%;内陆滩涂为变化幅度和波动性最大的湿地类型;湿地类型间的变化主要发生在湖泊湿地、内陆滩涂和沼泽湿地间;湿地与非湿地类型转变以湿地转化为非湿地为主,主要发生于湖泊湿地和沼泽湿地转化为非湿地;达赉湖自然保护区核心区、缓冲区湿地变化不明显,趋于稳定,而实验区湿地总体呈减少趋势。The article takes the Dalai Lake Nature Reserve,one of the green ecological barriers in the north of China as the research area,using remote sensing image data of 1976,1989,2000,2010,and 2018,utilizing dynamics and Markov transfer model to quantitatively analyze the changes of wetlands in the Dalai Lake Nature Reserve from 1976 to 2018.The results demonstrate that:from 1976 to 2018,the wetland area of the Dalai Lake Nature Reserve showed a decreasing trend,42a reduced by a total of 25026hm2;the dynamics of each study period were significantly different,from 2000 to 2010,the dynamics reached 37.3%,while 1989-2000,the dynamic degree is only-1.7%;inland tidal flat wetlands are the most volatile wetland types;the conversion between wetland types mainly occurs between lake wetlands,inland tidal flats and marsh wetlands;the conversions type betweenwetland and non-wetland are mainly converted from wetlands to non-wetlands,mainly occurring in the conversion of lake wetlands and marsh wetlands into non-wetlands;the core area of Dalai Lake Nature Reserve and the buffer zone wetland change distinctly and tend to stabilize,while the wetland in the experimental area generally shows a decreasing trend.

关 键 词：湿地 变化特征 达赉湖自然保护区 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]