近20年固原生态遥感监测气象分析  

Meteorological Analysis of Guyuan Ecological Remote Sensing Monitoring in the Past 20 Years

作　　者：马国涛[1,2,3] 景博 余文梅 龚晓丽 陈炜 何云 MA Guotao(Key Laboratory of Agricultural Meteorological Disaster Monitoring,Early Warning and Risk Management in Arid Areas,China Meteorological Administration,Yinchuan,Ningxia 750002)

机构地区：[1]中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室,宁夏银川750002 [2]宁夏气象防灾减灾重点实验室,宁夏银川750002 [3]固原市气象局,宁夏固原756000 [4]宁夏气象服务中心,宁夏银川750002

出　　处：《农业灾害研究》2022年第1期72-74,共3页Journal of Agricultural Catastrophology

基　　金：“中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室2019年度指令性科研项目”(CAMP-201921)。

摘　　要：利用卫星遥感技术对全市2000—2019年的植被恢复状况进行全面评估,结果显示:2019年固原市植被覆盖度为36.7%,位居宁夏5地市首位,为2000年以来最优,与近20年、近5年平均值相比,增幅高于宁夏平均值;近20年植被覆盖度在波动中增长,年均增长0.895个百分点,尤其是2009年以来增长加快,由25.8%增加到36.7%;2012—2019年各年植被覆盖度均大于近20年平均值,植被维持在相对较好的状态;近20年固原市平均气温小幅上升,自2006年起,年平均气温波动变大,冷、热年年平均气温对比更明显;近20年全市各县(区)年降水量为413.2~685.1 mm,与历年平均值相比,彭阳增幅最大,隆德增幅最小,全市降水量最大年份和最小年份之间相差369 mm;2012年开始全市年降水量年际变化幅度加大,降水和植被覆盖度之间呈现显著影响。A comprehensive assessment of the city’s vegetation restoration from 2000 to 2019 was carried out using satellite remote sensing technology. The results showed that vegetation coverage of Guyuan city was 36.7% in 2019, ranking first among the five prefectures in Ningxia, the best since 2000,and compared with the average of the past twenty and five years, the growth rate was higher than that of Ningxia;the vegetation coverage in the past 20 years had fluctuated and increased, with an average annual increase of 0.895 percentage points, especially since 2009, the growth had accelerated, from 25.8% to 36.7%;During 2012—2019, the vegetation coverage in each year was greater than the average value of the past 20 years,and the vegetation remained in a relatively good state;the average temperature of Guyuan city rose slightly in the past 20 years. The comparison of the annual average temperature was more obvious;the annual precipitation in the counties(districts) of the city in the past 20 years was 413.2-685.1 mm. Compared with the average of the past years, Pengyang had the largest increase, Lund has the smallest increase, and the city’s precipitation was the largest year and the smallest year The difference between them is 369 mm;since 2012, the inter-annual variation of the Guyuan’s annual precipitation has increased,and the relationship between precipitation and vegetation coverage had a significant impact.

关 键 词：植被覆盖度 降水量 平均气温 

分 类 号：X835[环境科学与工程—环境工程]