Analysis of spatial pattern Change of LU/LC over the upper Tarim River region since 1990 using remote sensing data

International Symposium on Earth Observation for One Belt and One Road

地球科学;政治学;社会学;经济学

Bai, L.Y.^1 ; Feng, J.Z.^2 ; Ma, Y.X.^1 ; Ran, Q.Y.^1 ; Wang, K.^1 ; Zhao, Y.^1

Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing

100094, China^1

Key Lab of Agri-information Service Technology, Ministry of Agriculture of P. R. China, Agricultural Information Institute, Chinese Academy of Agricultural Sciences, Beijing

100081, China^2

关键词: Central Asia;    Driving forces;    Land use type;    Remote sensing data;    Salient features;    Spatial patterns;    Tarim river;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/57/1/012038/pdf
DOI  :  10.1088/1755-1315/57/1/012038

来源: IOP

【 摘 要 】

The upper reaches of Tarim River (URTR) is an important port of trade between China and central Asia. The development of the URTR is thus significant for the SREB initiative. The LU/LC data in the URTR from 1990 to 2015 were used to quantitatively explore the dynamics of LU/LC changes, and its driving force was discussed from two aspects of nature and human. Results showed that the unused land and grassland were the main land use types in this area, accounting for more than 79%. Compared with the data of 1990, the areas of woodland, water, farmland, and building land of 2015 increased with 3.24%, 6.53%, 10.57%, and 0.40%, respectively, and the areas of unused land and grassland decreased, which accounted for 53.25% and 26.01%, respectively. The increases of the woodland and farmland areas mainly is originated from grassland and unused land. The woodland increased sharply around 2000 due to the abundant water during the period between 1998 and 2000. Subsequently, part of the woodland was shifted into the farmland. The extension of building land wasn't obvious, but showed a salient feature of population urbanization. It was essential that the LU/LC patterns of the URTR were deeply influenced by human farming and living activities.