基于EOS/MODIS数据的近10a青海湖遥感监测

doi:10.11849/zrzyxb.2012.11.015

摘要/Abstract

摘要：

选取青海湖周边地区气候资料及青海湖近10 a MODIS遥感资料,通过分析水体面积和水位、年均气温和年降水量的变化揭示青海湖面积的变化趋势。对青海湖近10 a遥感监测以及青海湖周边地区气候要素的分析研究结果表明:在2001-2010年10 a来青海湖周边地区年平均气温显著增加,平均每年升温0.12℃,年降水量在波动中呈上升趋势。青海湖水位虽然在近50 a内持续下降,而在2001-2010年呈现逐年增加的趋势,且增加趋势非常明显。从MODIS遥感资料对青海湖10 a来4月和9月的湖水面积监测结果显示,4月和9月青海湖面积在2001-2010年呈现波动上升趋势,且与4月和9月的水位呈极显著相关关系,相关系数分别为0.818和0.875(P<0.05)。近年来由于气候变化导致的青海北部一些地区降水量增多或气候变湿,而暖湿型的气候导致的降水量增多最终可能是水位升高的主要原因,且这种气候变湿的趋势使10 a来青海湖面积增大趋势明显。

关键词: 遥感监测, 青海湖, 湖水面积, 水位

Abstract:

The meteorological and MODIS data in recent 10 years were used to analyze change of the area of water surface, water level, annual average temperature and annual rainfall, and reveal trend of the area of water surface of the Qinghai Lake. Results of the analysis of remote sensing monitoring data of the Qinghai Lake and climate factors around it showed that the annual average temperature increased significantly in recent 10 years, the average increase per year for the annual average temperature about 0.12℃. The annual rainfall showed an increasing trend in fluctuation. It is found that water level of the Qinghai Lake showed a continued declining trend in recent 50 years, but enhanced from 2001 to 2010 and the increasing trend was remarkable. The results indicated that area of water surface monitoring show significant increase in the Qinghai Lake from MODIS data in April and September in the past 10 years, and area of water surface was significantly correlated with water level,the correlation coefficients are 0.818 and 0.875 respectively(P<0.05). As a result of climate change, rainfall increased or climate changed wet in some areas of northern Qinghai. Because of warm-wet climate leading to rainfall increase, this may cause water level rising and such a trend of climate change made area of water surface enlarged in the nearly 10 years.

Key words: remote sensing monitoring, Qinghai Lake, area of water surface, water level

中图分类号:

P332

李晓东, 肖建设, 李凤霞, 校瑞香, 徐维新, 王力. 基于EOS/MODIS数据的近10a青海湖遥感监测[J]. 自然资源学报, 2012, 27(11): 1962-1970.

LI Xiao-dong, XIAO Jian-she, LI Feng-xia, XIAO Rui-xiang, XU Wei-xin, WANG Li. Remote Sensing Monitoring of the Qinghai Lake Based on EOS/MODIS Data in Recent 10 Years[J]. JOURNAL OF NATURAL RESOURCES, 2012, 27(11): 1962-1970.

参考文献

[1] 董春雨, 王乃昂, 李卓仑, 等. 基于水热平衡模型的青海湖水位变化趋势预测[J]. 湖泊科学, 2009(4): 587-593.[DONG Chun-yu, WANG Nai-ang, LI Zhuo-lun, et al. Forecast of lake level in Lake Qinghai based on energy-water balance model. Journal of Lake Science, 2009(4): 587-593.]

[2] 周立华, 陈桂琛, 彭敏. 人类活动对青海湖水位下降的影响[J]. 湖泊科学, 1992, 4(3): 32-36.[ZHOU Li-hua, CHEN Gui-chen, PENG Min. Impact of human activities on the decline of water level, Qinghai Lake. Journal of Lake Science, 1992, 4(3): 32-36.]

[3] 陈桂琛, 彭敏, 周立华, 等. 青海湖地区人类活动对生态环境影响及其保护对策[J]. 干旱区地理, 1995, 18(3): 57-62.[CHEN Gui-chen, PENG Min, ZHOU Li-hua, et al. Influence of human activities on ecological environment and countermeasures of environment protection in Qinghai Lake region. Arid Land Geography, 1995, 18(3): 57-62.]

[4] 中国科学院兰州分院, 等. 青海湖近代环境的演化和预测[M]. 北京: 科学出版社, 1994: 255, 5, 71-73.[Lanzhou Branch of Chinese Academy of Sciences, et al. Prediction and Recent Environmental Development of Qinghai Lake. Beijing: Science Press, 1994: 255, 5, 71-73.]

[5] 殷青军, 杨英莲. 基于EOS/MODIS数据的青海湖遥感监测[J]. 湖泊科学, 2005, 17(4): 356-360.[YIN Qing-jun, YANG Ying-lian. Remote sensing monitoring of Lake Qinghai Based on EOS/MODIS Data. Journal of Lake Science, 2005, 17(4): 356-360.]

[6] 沈芳, 匡定波. 青海湖最近25年变化的遥感调查与研究[J]. 湖泊科学, 2003, 15(4): 289-296.[SHEN Fang, KUANG Ding-bo. Remote sensing investigation and survey of Qinghai Lake in the past 25 years. Journal of Lake Science, 2003, 15(4): 289-296.]

[7] 刘瑞霞, 刘玉洁. 近20年青海湖湖水面积变化遥感[J]. 湖泊科学, 2008, 20(1): 135-138.[LIU Rui-xia, LIU Yu-jie. Area changes of Lake Qinghai in the latest 20 years based on remote sensing study. Journal of Lake Science, 2008, 20(1): 135-138.]

[8] 刘佳, 王芳, 于福亮. 青海湖水位动态趋势预测[J]. 水利学报, 2009, 40(3): 319-327.[LIU Jia, WANG Fang, YU Fu-liang. Variation tendency prediction of dynamic water level in Qinghai Lake. Journal of Hydraulic Engineering, 2009, 40(3): 319-327.]

[9] 郭武. 青海湖水位下降与湖区生态环境演变研究[J]. 干旱区资源与环境, 1997, 11(2): 75-80.[GUO Wu. Studies on changes in stage and evolution of ecological environment for the Qinghai Lake. Journal of Arid Land Resources and Environment, 1997, 11(2): 75-80.]

[10] 刘玉洁, 杨忠东. MODIS遥感信息处理原理与算法[M]. 北京: 科学出版社, 2001: 1-3.[LIU Yu-jie, YANG Zhong-dong. Principles and Algorithm of MODIS Remote Sensing. Beijing: Science Press, 2001: 1-3.]

[11] 施雅风, 沈永平, 李栋梁, 等. 中国西北气候由暖干向暖湿转型问题评估[M]. 北京: 气象出版社, 2003: 17-44.[SHI Ya-feng, SHEN Yong-ping, LI Dong-liang, et al. Evaluate of the Present Climate Change from Warm-Dry to Warm Wet in Northwest China. Beijing: Meteorological Press, 2003: 17-44.]

[12] 秦大河. 中国西部环境演变评估: 第1卷[M]. 北京: 科学出版社, 2002: 54-67.[QIN Da-he. Assessment on the Environmental Change in West China: I. Beijing: Science Press, 2002: 54-67.]

[13] 时兴合, 赵燕宁, 戴升, 等. 柴达木盆地40多年来的气候变化研究[J]. 中国沙漠, 2005, 25(2): 164-169.[SHI Xing-he, ZHAO Yan-ning, DAI Sheng, et al. Research on climatic change of Qaidam Basin since 1961. Journal of Desert Research, 2005, 25(2): 164-169.]

[14] 赵燕宁, 时兴合, 王式功, 等. 青海河湟谷地气候及干旱变化研究[J]. 中国沙漠, 2006, 26(1): 54-59.[ZHAO Yan-ning, SHI Xing-he, WANG Shi-gong, et al. Research on variations of climate and its aridity in the valley of Yellow River and Huangshui River within Qinghai Province. Journal of Desert Research, 2006, 26(1): 54-59.]

[15] 范建华, 施雅风. 气候变化对青海湖水情的影响, I. 近30年时期的分析[J]. 中国科学B辑, 1992(5): 537-542.[FAN Jian-hua, SHI Ya-feng. Effects on water regime in the Qinghai Lake of climate change, I. Analyzed in recent 30 years. Science in China Series B, 1992(5): 537-542.]

[16] 周陆生, 杨卫东. 青海湖流域近六百年的气候变化与水位下降原因[J]. 湖泊科学, 1992, 4(3): 25-31.[ZHOU Lu-sheng, YANG Wei-dong. Discussion of the climatic change in recent 600 years and dropping of lake water-level, Qinghai Lake drainage basin. Journal of Lake Science, 1992, 4(3): 25-31.]

[17] 李凤霞, 伏洋, 杨琼, 等. 环青海湖地区气候变化及其环境效应[J]. 资源科学, 2008, 30(3): 348-354.[LI Feng-xia, FU Yang, YANG Qiong, et al. Climate change and its environmental effects in the surrounding area of Qinghai Lake. Resources Science, 2008, 30(3): 348-354.]

[18] 伊万娟, 李小雁, 崔步礼, 等. 青海湖流域气候变化及其对湖水位的影响[J]. 干旱气象, 2010, 28(4): 375-383.[YI Wan-juan, LI Xiao-yan, CUI Bu-li, et al. Climate change and impact on water level of the Qinghai Lake Watershed. Arid Meteorology, 2010, 28(4): 375-383.]

[19] 冯钟奎, 李晓辉. 青海湖近20年水域变化及湖岸演变遥感监测研究[J]. 古地理学报, 2006, 8(1): 131-141.[FENG Zhong-kui, LI Xiao-hui. Remote sensing monitoring study for water area change and lakeshore evolution of Qinghai Lake in last 20 years. Journal of Palaeogeography, 2006, 8(1): 131-141.]

[20] 李凤霞, 李林, 沈芳, 等. 青海湖湖岸形态变化及成因分析[J]. 资源科学, 2004, 26(1): 38-44.[LI Feng-xia, LI Lin, SHEN Fang, et al. Evolution of lakeshore shape of Qinghai Lake and its causes. Resources Science, 2004, 26(1): 38-44.]

[21] 舒卫先, 李世杰, 刘吉峰. 青海湖水量变化模拟及原因分析[J]. 干旱区地理, 2008, 31(2): 229-236.[SHU Wei-xian, LI Shi-jie, LIU Ji-feng. Simulation of water change in Qinghai Lake and affecting factors. Arid Land Geography, 2008, 31(2): 229-236.]