GEOGRAPHICAL SCIENCE

Grassland greenness change and its response to climate change in Three River Headwater Region in 2000—2020

Gu Changjun, Zhang Yili, Liu Linshan, Wei Bo, Cui Bohao, Gong Dianqing

GEOGRAPHICAL SCIENCE, 2025, 45(1): 214-226. DOI: 10.13249/j.cnki.sgs.20220774

数据源	分辨率	研究方法	研究时段	草地绿度变化结论	文献
注：^*结论含义为82.63%的区域草地绿度呈增长趋势，17.25%区域呈下降趋势，其它同此。
SPOT	1 km	最大值合成+趋势分析	2000—2015年	82.63%↑，17.25%↓^*	[32]
MOD13Q1	250 m	最大值合成+趋势分析	2000—2015年 5—9月	39.1%↑，20.4%↓	[31]
MOD13Q1	250 m	均值合成+趋势分析	2000—2019年 5—9月	64.92%↑，5.25%↓	[34]
MOD13Q1	250 m	最大值合成+趋势分析	2000—2018年 6—9月	54.93%↑，12.20%↓	[33]
MOD13Q1	250 m	年均值合成+趋势分析	2000—2013年	29.98%↑，2.64%↓	[35]
MOD13Q1	250 m	年最大值合成+趋势分析	2000—2011年	64.06%↑，35.94%↓	[36]
MODIS C2 NDVI	0.05°	均值合成+趋势分析	2006—2015年 3—11月	56.1%↑，7.2%↓	[37]

Table 4 Statements on grassland greenness change of the Three River Headwater Region in previous studies

Other figure/table from this article

Fig. 1 Overview of the Three River Headwater Region
Fig. 2 Grassland GNDVI in the Three River Headwater Region based on MK+SEN in 2000—2020
Table 1 Changes of grassland GNDVI with proportion of altitude distribution in 2000—2020
Table 2 Changes of grassland GNDVI with proportion of slope distribution in 2000—2020
Table 3 Proportion of grassland GNDVI changes with slope aspect in 2000—2020
Fig. 3 Correlation between GNDVI and temperature and precipitation at different time scales in the Three River Headwater Region
Fig. 4 Correlation between GNDVI and precipitation, monthly average temperature, monthly minimum temperature, and monthly maximum temperature in the growing season in the Three River Headwater Region from 2000 to 2020
Fig. 5 Correlation between GNDVI and precipitation, average temperature, and minimum temperature in the Three River Headwater Region in July from 2000 to 2020
Fig. 6 Partial correlation between GNDVI and precipitation and minimum temperature in the Three River Headwater Region in July from 2000 to 2020