中国北方草原植被对气象因子的时滞响应

doi:10.17521/cjpe.2007.0133

摘要/Abstract

摘要：

利用1982~1997年的气温、降水和1983~1997年生长季的NOAA/AVHRR的归一化植被指数(Normalized differential vegetation index, NDVI)遥感数据,分析了中国北方温带草原植被生长对气象因子的时滞响应。根据4个时间尺度(1~4个月)和4个时滞期(前0~3个月)将降水数据进行16种组合方式,计算了植被的NDVI与同期及前期(前1~6个月)降水之间的相关系数。同时,计算了植被的NDVI与同期和前一个月气温之间的相关系数。结果表明:1)中国北方温带草原植被的NDVI与同期降水和气温的显著相关。2)植被的NDVI对前一个月降水的时滞响应最强烈,植被的NDVI与当月降水和前两个月降水的累积量相关性最强。3)在生长季的起始阶段,去冬、今春的降水总量对草甸草原植被的生长有重要的作用。在生长季的中期和后期,当月和前一、二个月的降水对典型草原和荒漠草原的植被有显著影响。4)在草甸草原、典型草原区,生长季早期的气温均对植被生长的影响较为显著。在荒漠草原区,气温不仅在生长季初期与植被的NDVI呈现正相关,而且在生长季的中后期,气温与植被的NDVI呈现负相关性。

关键词: NDVI, 降水, 气温, 时滞响应, 温带草原

Abstract:

Aims Vegetation has strong temporal response to climate variables in some regions. The normalized differential vegetation index (NDVI) is generally recognized as a good indicator of terrestrial vegetation, so it can be used to analyze temporal responses of vegetation to climate variables. This study addresses two key questions: a) How quickly and over what time period does NDVI respond to different patterns of climate variables? b) How does NDVI respond to weather variation for different temperate steppe types of northern China?

Methods We calculated 1) linear correlations between monthly climate variables and NDVI for 1983-1997, 2) NDVI-precipitation correlation coefficients, with precipitation in four different time periods (1-4 months) and four different time lags (0-3 month lags) to evaluate the time period over which precipitation most strongly influences on NDVI and 3) NDVI-temperature correlation coefficients for the current and previous month.

Important findings The correlation coefficients between NDVI and concurrent climate variables were all significant in three temperate steppe types. There is a strong relationship between precipitation and NDVI in temperate steppe of northern China. Correlation coefficients between NDVI and precipitation are high for specific combinations of time duration and lag. In terms of time lag, NDVI was most strongly related to the previous month, although differences existed among different steppe types. In terms of time duration, NDVI was most strongly related to the sum of precipitation over three months than one, two or four month periods. Precipitation from February back to November of the previous year was positively correlated with NDVI early in the growing season in meadow steppe, and there was a strong correlation between NDVI and precipitation for the preceding 1-2 months in the mid and late growing season in desert steppe and typical steppe. Temperature was moderately correlated with NDVI during the growing season, but differences existed among steppe types. For typical steppe and meadow steppe, temperature was positively correlated with NDVI early in the growing season. For desert steppe, NDVI was moderately related with temperature early in the growing season and negatively correlated with temperature in the mid growing season.

Key words: NDVI, precipitation, temperature, temporal responses, temperate steppe

李霞, 李晓兵, 陈云浩, 莺歌. 中国北方草原植被对气象因子的时滞响应. 植物生态学报, 2007, 31(6): 1054-1062. DOI: 10.17521/cjpe.2007.0133

LI Xia, LI Xiao-Bing, CHEN Yun-Hao, YING Ge. TEMPORAL RESPONSES OF VEGETATION TO CLIMATE VARIABLES IN TEMPERATE STEPPE OF NORTHERN CHINA. Chinese Journal of Plant Ecology, 2007, 31(6): 1054-1062. DOI: 10.17521/cjpe.2007.0133

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2007.0133

https://www.plant-ecology.com/CN/Y2007/V31/I6/1054

图/表 10

参考文献 26

[1]	Braswell BH, Schimel DS, Linder E (1997). The response of global terrestrial ecosystems to internal temperature variability. Science, 278,870-872.
[2]	Davenport ML, Nicholson SE (1993). On the relation between rainfall and the normalized differece vegetation index for diverse vegetation types in East Africa. International Journal of Remote Sensing, 14,2369-2389.
[3]	Fang XQ (方修琦), Yu WH (余卫红) (2002). Progress in the study on the phonological to global warming. Advance in Earth Sciences (地球科学进展), 17,714-719. (in Chinese with English abstract)
[4]	James ME, Kalluri SNV (1994). The Pathfinder AVHRR land data set: an improved coarse resolution data set for terrestrial monitoring. International Journal of Remote Sensing, 15,3347-3363.
[5]	Ji L, Peters AJ (2003). Assessing vegetation response to drought in the northern Great Plains using vegetation and drought indices. Remote Sensing of Environment, 87,85-98.
[6]	Ji L, Peters AJ (2004). A spatial regression procedure for evaluating the relationship between AVHRR- NDVI and climate in the northern Great Plains. International Journal of Remote Sensing, 25,297-311.
[7]	Li XB (李晓兵), Chen YH (陈云浩), Zhang YX (张云霞) (2002). Impact of climate change on desert steppe in northern China. Advance in Earth Sciences (地球科学进展), 17,254-261. (in Chinese with English abstract)
[8]	Li XB (李晓兵), Shi PJ (史培军) (1999). Research on regulation of NDVI change of Chinese primary vegetation types based on NOAA/AVHRR data. Acta Botanica Sinica (植物学报), 41,314-324. (in Chinese with English abstract)
[9]	Li XB (李晓兵), Wang Y (王瑛), Li KR (李克让) (2000). NDVI sensitivity to seasonal and interannual rainfall variations in northern China. Acta Geographica Sinica (地理学报), 5,83-89. (in Chinese with English abstract)
[10]	Malo AR, Nicholson SE (1990). A study of rainfall and vegetation dynamics in the African Sahel using normalized difference vegetation index. Journal of Arid Environments, 19,1-24.
[11]	Nezlina NP, Kostianoyb AG, Li BL (2005). Inter-annual variability and interaction of remote-sensed vegetation index and atmospheric precipitation in the Aral Sea region. Journal of Arid Environments, 62,677-700.
[12]	Nicholson SE, Farrar TJ (1994). The influence of soil type on the relationships between NDVI, rainfall, and soil moisture in semiarid Botswana. I. NDVI response to rainfall. Remote Sensing of Environment, 50,107-120.
[13]	Pettorelli N, Vik JO, Mysterud A, Gaillard JM, Tucker CJ, Stenseth NC (2005). Using the satellite-derived NDVI to assess ecological responses to environmental change. Trends in Ecology and Evolution, 20,503-510. DOI URL PMID
[14]	Piao SL (朴世龙), Fang JY (方精云) (2003). Seasonal changes in vegetation activity in response to climate changes in China between 1982 and 1999. Acta Geographica Sinica (地理学报), 58,119-125. (in Chinese with English abstract)
[15]	Price SD (1991). Satellite remote sensing of primary production: comparison of results for Sahelian grassland 1981-1988. International Journal of Remote Sensing, 12,1301-1312.
[16]	Qi Y (齐晔) (1999). The effect of climate change on vegetation at high latitudes of the northern Hemisphere: a functional analysis. Acta Ecologica Sinica (生态学报), 19,474-477. (in Chinese with English abstract)
[17]	Roerink GJ, Menenti M, Soepboer W, Su Z (2003). Assessment of climate impact on vegetation dynamics by using remote sensing. Physics and Chemistry of the Earth, 28,103-109.
[18]	Schmidt H, Karnieli A (2000). Remote sensing of the seasonal variability of vegetation in a semi-arid environment. Journal of Arid Environments, 45,43-59.
[19]	Smith PM, Kalluri SNV, Prince SD, Defries R (1997). The NOAA/NASA Pathfinder AVHRR 8-km land data set. Photogrammetric Engineering and Remote Sensing, 63,12-31.
[20]	Sun R (孙睿), Zhu QJ (朱启疆) (2001). Effect of climate change of terrestrial net primary productivity in China. Journal of Remote Sensing (遥感学报), 5,58-61. (in Chinese with English abstract)
[21]	Tang HP (唐海萍), Chen YF (陈玉福) (2003). Intra-annual variability of NDVI and its relation to climate in Northeast China Transect. Quaternary Sciences (第四纪研究), 23,318-325. (in Chinese with English abstract)
[22]	Wang J, Rich PM, Price KP (2003). Temporal responses of NDVI to precipitation and temperature in the central Great Plains, USA. International Journal of Remote Sensing, 24,2345-2364.
[23]	Yu F, Price KP, Ellis J (2003). Response of seasonal vegetation development to climatic variations in eastern central Asia. Remote Sensing of Environment, 87,42-54.
[24]	Zhang F (张峰), Wu BF (吴炳方), Liu CL (刘成林), Luo ZM (罗治敏), Zhang SW (张树文), Zhang GL (张广录) (2004). A method to extract regional crop growth profile with time series of NDVI data. Journal of Remote Sensing (遥感学报), 8,515-528. (in Chinese with English abstract)
[25]	Zhang J (张军), Ge JP (葛剑平), Guo QX (国庆喜) (2001). The relation between the change of NDVI of the main vegetational types and the climatic factors in the northeast of China. Acta Ecologica Sinica (生态学报), 21,522-527. (in Chinese with English abstract)
[26]	Zhang XX (张学霞), Ge QS (葛全胜), Zheng JY (郑景云) (2005). Impacts and lags of global warming on vegetation in Beijing for the last 50 years based on remotely sensed data and phonological information. Chinese Journal of Ecology (生态学杂志), 24,123-130. (in Chinese with English abstract)

草原类型 Steppe types		站点名称 Names of sites	经度(E) Longitude	纬度(N) Latitude
草甸草原 Meadow steppe	站点1	海拉尔	119°45'	49°13'
	Site 1	Hailaer
	站点2	西乌珠穆沁旗	117°36'	44°35'
	Site 2	Xiwuzhumuqinqi
典型草原 Typical steppe	站点3	新巴尔虎左旗	118°16'	48°13'
	Site 3	Xinbaerhuzuoqi
	站点4	满洲里	117°26'	49°34'
	Site 4	Manzhouli
	站点5	东乌珠穆沁旗	116°58'	45°31'
	Site 5	Dongwuzhumuqinqi
	站点6	新巴尔虎右旗	116°49'	48°40'
	Site 6	Xinbaerhuyouqi
	站点7	锡林浩特	116°04'	43°57'
	Site 7	Xilinhot
	站点8	阿巴嘎旗	114°57'	44°01'
	Site 8	Abagaqi
荒漠草原 Desert steppe	站点9	那仁宝力格	114°09'	44°37'
	Site 9	Narenbaolige
	站点10	朱日和	112°54'	42°24'
	Site 10	Zhurihe
	站点11	二连浩特	111°58'	43°39'
	Site 11	Erlianhot
	站点12	满都拉	110°08'	42°32'
	Site 12	Mandula

草原类型 Steppe types		站点名称 Names of sites	经度(E) Longitude	纬度(N) Latitude
草甸草原 Meadow steppe	站点1	海拉尔	119°45'	49°13'
	Site 1	Hailaer
	站点2	西乌珠穆沁旗	117°36'	44°35'
	Site 2	Xiwuzhumuqinqi
典型草原 Typical steppe	站点3	新巴尔虎左旗	118°16'	48°13'
	Site 3	Xinbaerhuzuoqi
	站点4	满洲里	117°26'	49°34'
	Site 4	Manzhouli
	站点5	东乌珠穆沁旗	116°58'	45°31'
	Site 5	Dongwuzhumuqinqi
	站点6	新巴尔虎右旗	116°49'	48°40'
	Site 6	Xinbaerhuyouqi
	站点7	锡林浩特	116°04'	43°57'
	Site 7	Xilinhot
	站点8	阿巴嘎旗	114°57'	44°01'
	Site 8	Abagaqi
荒漠草原 Desert steppe	站点9	那仁宝力格	114°09'	44°37'
	Site 9	Narenbaolige
	站点10	朱日和	112°54'	42°24'
	Site 10	Zhurihe
	站点11	二连浩特	111°58'	43°39'
	Site 11	Erlianhot
	站点12	满都拉	110°08'	42°32'
	Site 12	Mandula

时段 Duration
1	2	3	4
0	0~1	0~2	0~3
1	1~2	1~3	1~4
2	2~3	2~4	2~5
3	3~4	3~5	3~6

时段 Duration
1	2	3	4
0	0~1	0~2	0~3
1	1~2	1~3	1~4
2	2~3	2~4	2~5
3	3~4	3~5	3~6

	草甸草原 Meadow steppe	典型草原 Typical steppe	荒漠草原 Desert steppe	所有草原类型 All steppe types
降水 Precipitation	0.60^***	0.41^***	0.38^***	0.50^***
气温 Temperature	0.62^***	0.54^***	0.41^***	0.41^***