|Table of Contents|

Study on Black Soil Loss in Songliao Plain Based on RS and GIS(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2010年第02期
Page:
189-194
Research Field:
水资源与环境
Publishing date:

Info

Title:
Study on Black Soil Loss in Songliao Plain Based on RS and GIS
Author(s):
XING Yu1;  JIANG Qi-gang1;  WANG Geng-ming2;  WANG Kun1
(1.School of Geoexploration Science and Technology, Jilin University, Changchun 130026, Jilin, China; 2.Guangdong Institute of Geological Survey, Guangzhou 510080, Guangdong, China)
Keywords:
black soil;  water loss and soil erosion;  gully;  RS;  GIS;  Songliao Plain
PACS:
X87;X833;P208
DOI:
-
Abstract:
Based on RS and GIS, current distribution and dynamic changes of black soil were analyzed,the spatial-temporal characteristics of black soil loss were discussed with TM data in 1986 and ETM data in 2001, the gully linear density to quantify the trend of black soil loss was introduced in Songliao Plain. The results show that the area of typical black soil in Songliao Plain is 54 989.92 km2, the distribution appears arc-shaped banded along the line of railway from Beijing to Harbin; the area of black soil reduces by 3 765.21 km2 from 1986 to 2001 with an average decrease of 251.01 km2/a, and mainly distributes in both sides of river, or near large construction sites, or in the peripheral of saline-alkali soil; if only considering the effective effect of gully, it is estimated that the black soil could transform into gully with a velocity of 1 411.0 km2/a in 2016, and the black soil loss is serious.

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Last Update: 2010-06-20