Retrieval of Soil Salinization Process and Its Dynamic Change in Songnen Plain

HUA Jinxi; ZANG Shuying; NA Xiaodong

doi:10.13961/j.cnki.stbctb.2017.01.028

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Retrieval of Soil Salinization Process and Its Dynamic Change in Songnen Plain

- Retrieval of Soil Salinization Process and Its Dynamic Change in Songnen Plain
- Bulletin of Soiland Water Conservation Vol. 37, Issue 1, Pages: 155-160(2017)
- 作者机构：
  
  哈尔滨师范大学黑龙江省普通高等学校地理环境遥感监测重点实验室,黑龙江,哈尔滨,150025
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2017.01.028
  CLC：
- Published：2017
- 稿件说明：
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HUA Jinxi, ZANG Shuying, NA Xiaodong. Retrieval of Soil Salinization Process and Its Dynamic Change in Songnen Plain[J]. Bulletin of Soiland Water Conservation, 2017, 37(1): 155-160.
DOI：

HUA Jinxi, ZANG Shuying, NA Xiaodong. Retrieval of Soil Salinization Process and Its Dynamic Change in Songnen Plain[J]. Bulletin of Soiland Water Conservation, 2017, 37(1): 155-160. DOI： 10.13961/j.cnki.stbctb.2017.01.028.

摘要

[目的

]

监测2000—2013年来松嫩平原盐碱地时空演变过程，为松嫩平原盐碱地防治提供理论依据。 [方法

]

以MODIS影像为主要数据源，结合野外实测样点建立回归模型，对松嫩平原土壤含盐量进行定量反演。将整个研究时期分为3个时段：时段1（2000—2004年），时段2（2004—2008年），时段3（2008—2013年）。[结果

]

时段1和时段2盐碱地面积增加，增加速度为5 109.75和2 240.62 km

/a，同时盐碱化程度加剧；以2008年为转折点，时段3盐碱地面积减少，主要是轻度盐碱地的减少，但是盐碱化程度仍在加剧。[结论

]

松嫩平原的盐碱化趋势不容乐观，应该采取紧急措施防止盐碱化程度进一步恶化，保护松嫩平原的生态环境健康发展。

Abstract

[Objective] The objective of the study is to monitor the spatio-temporal evolution of saline soil in Songnen Plain and provide a theoretical basis for the prevention and treatment of saline soil in this region. [Methods] We established a regression model based on MODIS images and the field measured samples to retrieve soil salt content on Songnen Plain quantitatively. Study period can be divided into three sub-periods: period one(2000—2004)

period two(2004—2008) and period three(2008—2013). [Results] The area of saline-alkali land increased and salinization was becoming worse in period one and two

and the rate of increase reached 5 109.75 km2/a and 2 240.62 km2/a respectively. After the turning point in 2008

the area of saline-alkali land(mainly the light saline-alkali land) decreased in period three

but the salinization degree was still growing. [Conclusion] Songnen Plain salinization is not optimistic

we should take emergent measures to prevent the further salinization and to ensure the healthy development of eco-environment of Songnen Plain.

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references

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