Temporal And Spatial Variation Characteristics O.f Natural Woodland In T he Upper Reaches Of The Tarim River In Recent 25 Years
文献类型： 外文期刊
作者： Ran, Q. Y.;Wang, K.;Zhao, Y.;Bai, L. Y.;Feng, J. Z.;Guo, M. Q.
作者机构：
期刊名称： INTERNATIONAL SYMPOSIUM ON EARTH OBSERVATION FOR ONE BELT AND ONE ROAD (EOBAR)
ISSN： 1755-1307
年卷期： 2017 年 57 卷
页码：
摘要： Natural woodland is highly prized in the Tarim River Basin for its great ecological, economic and social benefits, and it occupies an important position in the "The Belt and Road" strategy, but influenced by the natural environment changes and human activities, the natural woodland has changed in some way. So we implemented the dynamic monitoring of land use and natural woodland in the upper reach of the Tarim River and analyzed their changes, based upon the Landsat remote sensing images of 1990-2015. The results showed that: (1) From 1990 to 2015, the land use degree in the study area showed a significantly increasing trend, yet the land use degree and development intensity stayed in a relatively low level between two counterparts of the natural and agricultural land use. (2) In the past 25 years, the natural woodland area reached higher level in the middle terms (1995-2005), while remained lower at both ends. Additionally, the dynamic changes had a high increase speed during 1990-1995 as well as had a high decrease speed during 2005-2010. (3) The transfer features of natural woodland from 1990 to 2015 was: natural woodland were mainly changed into farmland, and the newly increased natural woodland mainly came from grassland and saline alkali land.
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