Response of Vegetation Cover to Climate Before and After Impoundment in Three Gorges Reservoir

TIAN Meng-qi; ZHOU Jian-zhong; ZHANG Yong-chuan; JIA Ben-jun; CHEN Lu

doi:10.11988/ckyyb.20200088

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Journal of Changjiang River Scientific Research Institute ›› 2021, Vol. 38 ›› Issue (4) : 43-49. DOI: 10.11988/ckyyb.20200088

WATER-SOIL CONSERVATION AND ECOLOGICAL RESTORATION

Response of Vegetation Cover to Climate Before and After Impoundment in Three Gorges Reservoir

TIAN Meng-qi^1,2, ZHOU Jian-zhong^1,2, ZHANG Yong-chuan^1,2, JIA Ben-jun^1,2, CHEN Lu^1,2

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Abstract

The aim of this research is to reveal the response of vegetation cover to climate change before and after the Three Gorges impoundment. The correlation between vegetation cover and climate factors in the upstream of the Yangtze River from Cuntan to Yichang and 100 km around was analyzed by using partial correlation coefficient method based on SPOT NDVI and observed meteorological data. Meanwhile, the non-linear mapping relationship was also investigated. Results unveiled high spatial heterogeneity of the dynamic response of vegetation cover to temperature and precipitation in the study area. Temperature is the major driving factor of vegetation cover variations. Second-order non-linear mapping effectively characterizes the response of vegetation cover to temperature, and well explains the physical mechanism of the relationship between vegetation cover and temperature. The response of vegetation cover to temperature is affected by the impoundment of the Three Gorges Reservoir to a certain extent, and the influence degree attenuates with the distancing from the river.

Key words

vegetation cover / normalized difference vegetation index(NDVI) / climate response / impoundment / Three Gorges Reservoir

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TIAN Meng-qi, ZHOU Jian-zhong, ZHANG Yong-chuan, JIA Ben-jun, CHEN Lu. Response of Vegetation Cover to Climate Before and After Impoundment in Three Gorges Reservoir[J]. Journal of Changjiang River Scientific Research Institute. 2021, 38(4): 43-49 https://doi.org/10.11988/ckyyb.20200088

References

[1] SUN W, SONG X, MU X, et al. Spatiotemporal Vegetation Cover Variations Associated with Climate Change and Ecological Restoration in the Loess Plateau[J]. Agricultural and Forest Meteorology, 2015, 209(1):87-99.
[2] WANG Q, ZHANG Q P, ZHOU W. Grassland Coverage Changes and Analysis of the Driving Forces in Maqu County[J]. Physics Procedia, 2012, 33:1292-1297.
[3] JIA K, LIANG S, ZHANG L, et al. Forest Cover Classification Using Landsat ETM+ Data and Time Series MODIS NDVI Data[J]. International Journal of Applied Earth Observation and Geoinformation, 2014, 33: 32-38.
[4] KRISHNASWAMY J, JOHN R, JOSEPH S. Consistent Response of Vegetation Dynamics to Recent Climate Change in Tropical Mountain Regions[J]. Global Change Biology, 2014, 20(1): 203-215.
[5] 焦珂伟, 高江波, 吴绍洪, 等. 植被活动对气候变化的响应过程研究进展[J]. 生态学报, 2018,38(6): 2229-2238.
[6] XIAO Q, TAO J, XIAO Y, et al. Monitoring Vegetation Cover in Chongqing between 2001 and 2010 Using Remote Sensing Data[J]. Environmental Monitoring and Assessment, 2017, 189(10):493.
[7] 宋怡, 马明国. 基于GIMMS AVHRR NDVI数据的中国寒旱区植被动态及其与气候因子的关系[J]. 遥感学报, 2008, 12(3):499-505.
[8] 武正丽, 贾文雄, 赵珍, 等. 2000—2012年祁连山植被覆盖变化及其与气候因子的相关性[J]. 干旱区地理, 2015(6):1241-1252.
[9] 袁沫汐, 邹玲, 林爱文, 等. 湖北省地区植被覆盖变化及其对气候因子的响应[J]. 生态学报, 2016, 36(17):5315-5323.
[10] 方利, 王文杰, 蒋卫国, 等. 2000~2014年黑龙江流域(中国)植被覆盖时空变化及其对气候变化的响应[J]. 地理科学, 2017, 37(11):1745-1754.
[11] 韩继冲, 喻舒琳, 杨青林, 等. 1999—2015年长江流域上游植被覆盖特征及其对气候和地形的响应[J]. 长江科学院院报, 2019, 36(9): 51-57.
[12] 吴昌广, 周志翔, 肖文发, 等. 基于MODIS NDVI的三峡库区植被覆盖度动态监测[J]. 林业科学, 2012(1):22-28.
[13] 张兰, 沈敬伟, 刘晓璐, 等. 2001—2016年三峡库区植被变化及其气候驱动因子分析[J]. 地理与地理信息科学, 2019, 35(2):44-52.
[14] 向菲菲, 王伦澈, 姚瑞, 等. 三峡库区气候变化特征及其植被响应[J]. 地球科学, 2018, 43(增刊1):46-56.
[15] WU Li-guang, ZHANG Qiang, JIANG Zhi-hong. Three Gorges Dam Affects Regional Precipitation[J]. Geophysical Research Letters, 2006, 33(13):L13806.
[16] MILLER N L, JIN J, TSANG Chin-fu. Local Climate Sensitivity of the Three Gorges Dam[J]. Geophysical Research Letters, 2005, 32(16), doi: 10.1029/2005GL022821.
[17] 徐新良.中国月度植被指数(NDVI)空间分布数据集[DB/OL].(2018-06-06)[2018-08-08]. http://www.resdc.cn/DOI.DOI:10.12078/2018060602.
[18] 曹鑫, 辜智慧, 陈晋, 等. 基于遥感的草原退化人为因素影响趋势分析[J]. 植物生态学报, 2006, 30(2):268-277.
[19] 崔耀平, 刘纪远, 胡云锋, 等. 中国植被生长的最适温度估算与分析[J]. 自然资源学报, 2012(2):281-292.