TY - JOUR
T1 - Spatial-temporal patterns and characteristics of ecological function between 2009 and 2015 in China
AU - Xia, Han
AU - Zhang, Wanshun
AU - Wang, Hao
AU - Peng, Hong
AU - Zhang, Ziqian
AU - Ke, Qian
AU - Bu, Sifan
PY - 2020
Y1 - 2020
N2 - Ecological function reflects the ability of the land to provide ecological goods to support high-quality human production and life. The evaluation of the county-level ecological function across the whole nation is crucial for sustainable land management, which has not been implemented effectively in China. In this study, we proposed a unified system for the assessment of ecological function that would be comparable at the county level, and we applied the system to evaluate the ecological function of 2850 counties across China based on multi-source data. We also examined the spatiotemporal changes in ecological function from 2009 to 2015 using standard deviational ellipses and coefficients of variation. The results showed that the number of counties with high levels of ecological function in China decreased by 8.13% from 2009 to 2012 and then increased by 0.6% from 2012 to 2015. The spatial pattern of the degradation of ecological function shifted from the east-west direction to the southwest-northeast direction and became centralized in the Central Plains area of China. The regional imbalance in ecological function followed the order from high to low of the central, western, northeastern, and eastern areas of China. Targeted policies were proposed to control the degradation of the ecological function in the four regions in China.
AB - Ecological function reflects the ability of the land to provide ecological goods to support high-quality human production and life. The evaluation of the county-level ecological function across the whole nation is crucial for sustainable land management, which has not been implemented effectively in China. In this study, we proposed a unified system for the assessment of ecological function that would be comparable at the county level, and we applied the system to evaluate the ecological function of 2850 counties across China based on multi-source data. We also examined the spatiotemporal changes in ecological function from 2009 to 2015 using standard deviational ellipses and coefficients of variation. The results showed that the number of counties with high levels of ecological function in China decreased by 8.13% from 2009 to 2012 and then increased by 0.6% from 2012 to 2015. The spatial pattern of the degradation of ecological function shifted from the east-west direction to the southwest-northeast direction and became centralized in the Central Plains area of China. The regional imbalance in ecological function followed the order from high to low of the central, western, northeastern, and eastern areas of China. Targeted policies were proposed to control the degradation of the ecological function in the four regions in China.
KW - Assessment
KW - China
KW - County level
KW - Ecological function
KW - Main Functional Areas Planning
KW - Spatial-temporal change
UR - http://www.scopus.com/inward/record.url?scp=85084509867&partnerID=8YFLogxK
U2 - 10.1016/j.ecolind.2020.106478
DO - 10.1016/j.ecolind.2020.106478
M3 - Article
AN - SCOPUS:85084509867
SN - 1470-160X
VL - 116
JO - Ecological Indicators
JF - Ecological Indicators
M1 - 106478
ER -