摘要
根据1990、2000、2010和2020年卫星遥感资料和近30年气温、降水量和蒸发量等气候资料分析研究藏北高原色林错国家级自然保护区湖泊演化。结果表明,保护区湖泊数量呈增多—减少—增多的趋势,湖泊面积呈扩张—加速扩张—扩张减缓的阶段性增长趋势。近30年湖泊总面积扩大88 676.49 hm^(2),其中,1990—2000年、2000—2010年和2010—2020年面积分别增长23 897.12、57 176.60和7 602.77 hm^(2),增长幅度分别为5.63%、12.75%和1.50%。通过对保护区1 000 hm^(2)以上湖泊面积分析,西区湖泊以色林错、仁错面积变化率较大,东区湖泊以错愕、乃日平错以及蓬错变化显著。近30年色林错保护区气候为气温升高、降水量增多和蒸发量减少,气候呈现出暖湿化发展趋势。冰川萎缩速率、降水量和蒸发量变化与色林错保护区湖泊阶段性变化规律相关性高。
Based on satellite remote sensing data from 1990,2000,2010 and 2020,as well as climate data such as temperature,precipitation and evaporation in recent 30 years,this paper investigated the evolution of lakes in Selincuo Lake National Nature Reserve.The results showed that the number of lakes in Selincuo Lake National Nature Reserve showed a trend of increasing,decreasing and increasing,and the area of lakes showed a phased increase trend of expansion,accelerating expansion and slowing down.In recent 30 years,the total area of lakes had expanded by 88 676.49 hm^(2),among which,the area increased by 23 897.12 hm^(2),57 176.60 hm^(2) and 7 602.77 hm^(2),respectively,with growth rates of 5.63%,12.75% and 1.50% in the periods from 1990 to 2000,from 2000 to 2010,and from 2010 to 2020.The analysis of the lake area above 1 000 hm^(2) in Selincuo Lake National Nature Reserve showed that the areas change rate of Selincuo and Rencuo in the western region was large,while those of Qu′e,Nairipingcuo and Pengcuo in the eastern region were significant.In recent 30 years,the climate of Selincuo Lake National Nature Reserve was characterized by the increase of temperature and precipitation,and the decrease of evaporation,showing a trend of warm and humid development.The changes of glacier shrinking rate,precipitation and evaporation were highly correlated with the periodic changes of lakes in Selincuo Lake National Nature Reserve.
作者
吕俊娥
马露
高会军
谢昆军
LYU Jun′e;MA Lu;GAO Huijun;XIE Kunjun(China Coal Aerial Photogrammetry and Remote Sensing Group Co.,Ltd.,Xi′an 710199,China;Nagchu Bureau of Forest and Grassland,Nagchu,Xizang 852078,China)
出处
《林业调查规划》
2024年第2期51-57,共7页
Forest Inventory and Planning
关键词
湖泊面积
遥感监测
气候因素
色林错国家级自然保护区
lake area
remote sensing monitoring
climate factors
Selincuo Lake National Nature Reserve
作者简介
第一作者:吕俊娥(1983-),女,陕西宝鸡人,硕士,高级工程师.主要从事遥感与生态环境研究.Email:280998828@qq.com。
