克拉玛依农业开发区不同开垦年限土壤盐分变化
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

S156.4

基金项目:

国家科技基础资源调查专项(2017FY101004)资助。


Variation of Soil Salinity in Karamay Agricultural Development Area in Different Reclamation Years
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    利用1996年、2006年和2016年3次土壤采样数据和遥感影像,结合统计学和GIS、RS技术,分析了克拉玛依农业开发区不同开垦年限土壤盐分的变化。结果表明:近20 a来研究区土壤盐渍化总体上呈现出减轻的趋势,但开垦后土壤盐分南重北轻的总体格局未发生变化。研究区总体上按照从北到南的顺序进行开发,随着开垦年限的增加,土壤盐分含量总体呈现下降的趋势,但2006年之后开垦区域的盐分变化较为复杂。研究区较早开垦的耕地本底条件较好,开垦前土壤盐渍化较轻,开垦后盐渍化减轻程度较大,农业活动的改良效果较好;随着开垦年限的减小,土壤本底条件逐渐变差,农业改良的效果逐渐降低。经过十多年农业种植后,南部部分地区的土壤盐分含量较高,影响作物生长,主要表现为NDVI出现斑块状低值区。

    Abstract:

    Based on soil sampling data and remote sensing images in 1996, 2006 and 2016, the changes of soil salinity in Karamay agricultural development area with different reclamation years were analyzed by using statistic method and GIS and RS techniques. The results showed that: 1) In the past 20 years, soil salinization in the study area showed a general ecreasing trend, and the ‘severe-south and slight-north’ overall pattern of soil salinity did not change in the reclaimed land. 2) The study area was developed from north to south, and soil salt content decreased with the reclamation year, but salinity change in reclaimed area became more complicated since 2006. 3) In the study area, the reclamation conditions are better, soil salinization was lighter before reclamation, and reclamation reduced soil salinition which indicated an imporving effect of agricultural activities. Soil background conditions and the improving effect of agricultural activities became better with the increase of reclamation year. 4) Even after 10 years more of agricultural cultivation, some patchs with low NDVI in the south, soil salt contents were still high which hindered the crop growth.

    参考文献
    相似文献
    引证文献
引用本文

张寿雨,吴世新,贺 可,蒙 敏,田长彦.克拉玛依农业开发区不同开垦年限土壤盐分变化[J].土壤,2018,50(3):574-582. ZHANG Shouyu, WU Shixin, HE Ke, MENG Min, TIAN Changyan. Variation of Soil Salinity in Karamay Agricultural Development Area in Different Reclamation Years[J]. Soils,2018,50(3):574-582

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2017-02-24
  • 最后修改日期:2017-06-04
  • 录用日期:2017-06-09
  • 在线发布日期: 2018-05-29
  • 出版日期: 2018-06-25