LI Dan,WU Xiuqin,ZHANG Jingzhou,et al.Vegetation Phenology Change and Response to Climate Change in the Karst Faulted Basin of Southwest China[J].Research of Soil and Water Conservation,2020,27(06):168-173.
西南喀斯特断陷盆地植被物候动态变化及其与气候因子的响应
- Title:
- Vegetation Phenology Change and Response to Climate Change in the Karst Faulted Basin of Southwest China
- 文章编号:
- 1005-3409(2020)06-0168-06
- Keywords:
- karst faulted basin; vegetation phenology; climate change; NDVI
- 分类号:
- K903; Q142.2
- 文献标志码:
- A
- 摘要:
- 为了解喀斯特断陷盆地植被物候格局以及植被物候变化的驱动机制,基于2001—2016年MOD13Q1的250 m产品,利用TIMESAT模型最大斜率法反演了西南喀斯特断陷盆地生长季始期(SOS)、生长季末期(EOS)和生长季的长度(LOS)及变化,并深入分析了影响物候变化的主要气候因素。结果表明:(1)2001—2016年期间,西南喀斯特断陷盆地生长季初期物候指标推迟了7.7 d/10 a,生长季末期物候指标推迟了10 d/10 a,生长季长度指标延长了2.3 d/10 a。(2)SOS变化整体呈现西推迟东提前的变化趋势,提前趋势显著的地区集中分布于研究区东部云贵边境; 大部分地区生长季结束日期推迟,但安宁河谷、木里低海拔山谷等少部分地区生长季结束日期显著提前。(3)物候指标对气温和降水的响应程度不同,总体来讲,SOS受气候因子的影响比EOS更强烈。春季气温和降水对植被SOS影响力普遍大于其他季节,SOS的推迟现象主要受到春季温度升高的影响。夏季降水对EOS的影响较大,表明植物生长受降水的影响存在一定的时滞作用。在增温增湿的气候背景下,断陷盆地物候指标在呈现出东早西晚的空间分异情况下随之发生推迟的响应关系。水分是限制植被生长的主要因素,且对植被的影响主要体现在春季和夏季。
- Abstract:
- In order to understand the vegetation phenology pattern and explore the driving mechanism of vegetation phenology change in karst faulted basin, based on the 250 m product data of MOD13Q1 from 2001 to 2016, three vegetation phenological indices(the start of the growing season, the end of the growing season, the length of the growing season)were estimated to study the vegetation phenological changes by using TIMESAT model in southwest karst faulted basin. And then the main factors affecting phenology change were analyzed. The results showed that:(1)from 2001 to 2016, SOS of karst basin of southwest China experienced a delay of 7.7 d/decade, EOS experienced a delay of 10 d/decade, and LOS prolonged 2.3 d/decade;(2)the change of SOS in the research area reflected postponement in the west and advance in the east; the areas with significant advance trend concentrated in the Yunnan-Guizhou border of the eastern research area; in most regions, EOS presented the delay trend, but in a few regions, EOS presented the advance trend, such as Anning River valley, Muli low-elevation valley;(3)the response of phenological index to temperature and precipitation was different; in general, SOS was more strongly affected by climate factors than EOS; the influence of spring temperature and precipitation on SOS was generally greater than that in other seasons in the whole study area; the delay of SOS was mainly affected by the temperature rise in spring; summer precipitation had a great influence on EOS, which reflected that precipitation had a certain time lag on plant growth. Under the climate background of increasing temperature and humidity, phenological indexes of faulted basins show the spatial differentiation of the early pattern in east and the later pattern in west and indicate the delayed response relationship with climate change. Water is the main factor limiting vegetation growth, and mainly presents the impact on vegetation in the spring and summer.
参考文献/References:
[1] White M A, Thornton P E, Running S W. A continental phenology model for monitoring vegetation responses to interannual climatic variability[J]. Global Biogeochemical Cycles, 1997,11(2):217-234.
[2] Visser M E, Caro S P, van Oers K, et al. Phenology, seasonal timing and circannual rhythms: Towards a unified framework[J]. Philosophical Transactions of the Royal Society of London Series B: Biological Sciences, 2010,365(1555):3113-3127.
[3] Landman W. Climate change 2007: the physical science basis[J]. South African Geographical Journal, 2010,92(1):86-87.
[4] Primack R B, Higuchi H, Miller-Rushing A J. The impact of climate change on cherry trees and other species in Japan[J]. Bio-Logical Conservation, 2009,142(9):1943-1949.
[5] 仲舒颖,郑景云,葛全胜.近40年中国东部木本植物秋季叶全变色期变化[J].中国农业气象,2010,31(1):1-4.
[6] 葛全胜,郑景云,张学霞,等.过去40年中国气候与物候的变化研究[J].自然科学进展,2003,13(10):42-47.
[7] Fan Z X, Bräuning A, Thomas A, et al. Spatial and temporal temperature trends on the Yunnan Plateau(Southwest China)during 1961—2004[J]. International Journal of Climatology, 2011,31(14):2078-2090.
[8] 吴毅,刘文耀,沈有信,等.云南石林景区主要乡土植物物候特征的初步研究[J].山地学报,2006,24(6):647-653.
[9] 樊辉,何大明.基于MODIS EVI时序数据的云南高原山地森林物候特征识别[J].山地学报,2012,30(1):16-23.
[10] 牟佳,陈中云,帅世殊.贵州近20 a部分物候现象变化与气象条件的关系[J].贵州气象,2005,29(2):32-33.
[11] 王宇,张华,张贵,等.喀斯特断陷盆地环境地质分区及功能[J].中国岩溶,2017,36(3):283-295.
[12] 边金虎,李爱农,宋孟强,等. MODIS植被指数时间序列Savitzky-Golay滤波算法重构[J].遥感学报,2010,14(4):725-741.
[13] Neinavaz E, Skidmore A K, Darvishzadeh R. Effects of prediction accuracy of the proportion of vegetation cover on land surface emissivity and temperature using the NDVI threshold method[J]. International Journal of Applied Earth Observations and Geoinformation, 2020,85.DOI:org/10.1016/j.jag.2019.101984.
[14] Filippa G, Cremonese E, Migliavacca M, et al. Phenopix: A R package for image-based vegetation phenology[J]. Agricultural and Forest Meteorology, 2016,220:141-150.
[15] Ivits E, Cherlet M, Tóth G, et al. Combining satellite derived phenology with climate data for climate change impact assessment[J]. Global and Planetary Change, 2012, 88/89:85-97.
[16] Shen Z, Fu G, Yu C, et al. Relationship between the growing season maximum enhanced vegetation index and climatic factors on the tibetan plateau[J]. Remote Sensing, 2014,6:6765-6789.
[17] 李净,刘红兵,李彩云,等.基于GIMMS 3g NDVI的近30年中国北部植被生长季始期变化研究[J].地理科学2017,37(4):620-629.
[18] Garrity S R, Bohrer G, Maurer K D, et al. A comparison of multiple phenology data sources for estimating seasonal transitions in deciduous forest carbon exchange[J]. Agricultural and Forest Meteorology, 2011,151(12):1741-1752.
[19] Garonna I, De Jong R, De Wit A J W, et al. Strong contribution of autumn phenology to changes in satellite-derived growing season length estimates across Europe(1982—2011)[J]. Global Change Biology, 2014,20(11):3457-3470.
[20] 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.
[21] 何云玲,李同艳,熊巧利,等.2000—2016年云南地区植被覆盖时空变化及其对水热因子的响应[J].生态学报,2018,38(24):8813-8821.
[22] 曹沛雨,张雷明,李胜功,等.植被物候观测与指标提取方法研究进展[J].地球科学进展,2016,31(4):365-376.
[23] 李明财,罗天祥,朱教君,等.高山林线形成机理及植物相关生理生态学特性研究进展[J].生态学报,2008,28(11):5583-5591.
[24] Pohl M, Alig D, Korner C, et al. Higher plant diversity enhances soil stability in disturbed alpine ecosystems[J]. Plant and Soil, 2009, 324(1/2):91-102.
[25] Diemer C K. In situ photosynthetic responses to light, temperature and carbon dioxide in herbaceous plants from low and high altitude[J]. Functional Ecology, 1987,1(3):179-194.
相似文献/References:
[1]王志刚,曹生奎,曹广超.近15年来青海湖流域气温、降水变化对植被物候驱动分析[J].水土保持研究,2022,29(01):249.
WANG Zhigang,CAO Shengkui,CAO Guangchao.Analysis on the Drive of Temperature and Precipitation Changes to Vegetation Phenology of the Qinghai Lake Basin in the Past 15 Years[J].Research of Soil and Water Conservation,2022,29(06):249.
备注/Memo
收稿日期:2019-12-30 修回日期:2020-02-10
资助项目:国家自然科学基金“荒漠化地区土地利用冲突机制与多利益主体协同的土地系统优化策略”(41671080)
第一作者:李丹(1994—),女,山西大同人,硕士研究生,研究方向为3S技术在资源环境中的应用。E-mail:13121666483@qq.com
通信作者:吴秀芹(1974—),女,辽宁阜新人,博士,主要从事GIS应用以及土地利用变化研究。E-mail:wuxq@bjfu.edu.cn