Effects of Different Environmental Factors on Distribution of Soda Saline-alkaline Land in Western Jilin Province

XU Xiaohong; LIU Su; ZHAO Yingjie; XU Ziqi; YANG Xiankun; TENG Meiyao; WANG Dazhong; ZHAO Shujun

doi:10.13961/j.cnki.stbctb.2018.01.015

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Effects of Different Environmental Factors on Distribution of Soda Saline-alkaline Land in Western Jilin Province

- Effects of Different Environmental Factors on Distribution of Soda Saline-alkaline Land in Western Jilin Province
- Bulletin of Soiland Water Conservation Vol. 38, Issue 1, Pages: 89-95(2018)
- 作者机构：
  
  1. 吉林省水土保持科学研究院,吉林,长春,130033
  2. 吉林农业大学,吉林,长春,130000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2018.01.015
  CLC：
- Published：2018
- 稿件说明：
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XU Xiaohong, LIU Su, ZHAO Yingjie, et al. Effects of Different Environmental Factors on Distribution of Soda Saline-alkaline Land in Western Jilin Province[J]. Bulletin of Soiland Water Conservation, 2018, 38(1): 89-95.
DOI：

XU Xiaohong, LIU Su, ZHAO Yingjie, et al. Effects of Different Environmental Factors on Distribution of Soda Saline-alkaline Land in Western Jilin Province[J]. Bulletin of Soiland Water Conservation, 2018, 38(1): 89-95. DOI： 10.13961/j.cnki.stbctb.2018.01.015.

摘要

[目的]揭示吉林省西部苏打盐碱地的分布规律，为盐碱地的防治提供理论支持。[方法]通过ArcGIS软件对遥感影像进行提取，对不同环境因子与吉林省西部苏打盐碱地面积分布进行相关分析和回归分析。[结果]①水系30 000 m缓冲区外，吉林省西部苏打盐碱地面积随着离水系距离的增加而减少；②与苏打盐碱地面积呈显著相关的气象因子分别为累年年平均风速（R=0.716，sig.<0.05）、累年平均年降水量（R=-0.597，sig.<0.05）、累年年最多降水量（R=-0.652，sig.<0.05）；③海拔高度和坡度是影响吉林省西部苏打盐碱地分布的重要因子，且苏打盐碱地面积随着海拔高度的升高而减少，随着坡度的增加而减少。[结论]影响吉林省西部苏打盐碱地分布的主要环境因子包括离水系距离、气象因子和地形因子。

Abstract

[Objective] To explore the spatial distribution of the soda saline-alkaline land in Western Jilin Province and provide a theoretical basis for the prevention and treatment of saline soil in this region.[Methods] We extracted information on environmental factors from remote sensing images by ArcGIS and analyzed the relationship between the distribution of the soda saline-alkaline land and environmental factors through regression analysis and correlational analysis methods.[Results] ① Beyond the buffering distance of 30 000 m of the hydrographic net

the area of soda saline-alkaline land decreased with the increasing distance from hydrographic net. ② The area of soda saline-alkaline land was significantly affected by multi-year average annual wind speed (R=0.716

p<0.05)

multi-year average annual precipitation(R=-0.597

p<0.05) and maximum value of the multi-year annual precipitation(R=-0.652

p<0.05) respectively. ③ The altitude and slope gradient were key factors influencing the distribution of soda saline-alkaline land of the western Jilin Province. The area of the soda saline-alkaline land decreased with the increasing altitude and slope gradient.[Conclusion] The main environmental factors affecting the distribution of soda saline-alkaline land in Western Jilin Province were the distance from the hydrographic net

climatic factors and terrain factors.

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