亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

伊犁察南灌區(qū)土壤鹽分時空變異特征與運(yùn)移機(jī)理研究
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

新疆維吾爾自治區(qū)科技廳科技計劃項目(201531116)、新疆優(yōu)秀青年科技人才培養(yǎng)項目(qn2015yx033)和國家自然科學(xué)基金項目(U1403182)


Spatio-temporal Variation and Migration Mechanism of Soil Salinity in Chanan Irrigation Area of Ili
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪問統(tǒng)計
  • |
  • 參考文獻(xiàn)
  • |
  • 相似文獻(xiàn)
  • |
  • 引證文獻(xiàn)
  • |
  • 資源附件
  • |
  • 文章評論
    摘要:

    以伊犁河谷察南灌區(qū)為研究區(qū),運(yùn)用磁感式電導(dǎo)率快速獲取技術(shù)及室內(nèi)分析相結(jié)合手段,通過構(gòu)建鹽分解譯模型,獲取2015年及2016年秋季0~30cm、30~60cm、60~100cm土壤鹽分含量。對土壤各土層進(jìn)行了鹽漬化分級統(tǒng)計和半方差函數(shù)分析及空間插值分析。對研究區(qū)高程信息進(jìn)行提取,并通過調(diào)查河流影響范圍對河流進(jìn)行緩沖區(qū)分析。旨在構(gòu)建適用于研究區(qū)及同類型灌區(qū)磁感式鹽漬土地快速精量診斷評估與利用規(guī)劃技術(shù)體系,了解干旱、半干旱區(qū)灌溉農(nóng)田土鹽時空變異特征,并對土鹽時空運(yùn)移機(jī)理進(jìn)行研究。初步研究表明,相比于2015年秋季,2016年秋季研究區(qū)非鹽化土面積顯著減小,中度鹽化土面積顯著增加,非鹽化土、輕度鹽化土呈現(xiàn)向中度鹽化土演變的趨勢;研究區(qū)土壤鹽分呈現(xiàn)向中部及東部區(qū)域運(yùn)移的趨勢,鹽化土面積增加,且鹽分含量均值增大;另外,在空間大尺度范圍上,河流是影響土鹽運(yùn)移的主要影響因素,在局域小尺度范圍內(nèi),地勢是影響土鹽運(yùn)移的主要影響因素。

    Abstract:

    Chanan Irrigation Area of Ili was selected as the study area. Through the combination of electromagnetic fast soil electrolytic conductivity acquisition technology with laboratory analysis, and using the construction of soil salinity interpretation model to get soil salinity content of 0~30cm, 30~60cm and 60~100cm soil layer in the autumn of 2015 and 2016. On the one hand, simple statistical classification was conducted, and the semi-variogram analysis and spatial interpolation analysis for soil salinity characteristic factors were carried out;on the other hand, the elevation information of the study area was extracted, and the buffer area through investigating the influence of river was analyzed, which aimed at constructing suitable magnetic induction type fast precise diagnostic evaluation and utilization planning technology for the study area and the same irrigation area. Preliminary studies indicated that: firstly, from the autumn of 2015 to the autumn of 2016, non-saline soil area was significantly reduced, while moderate-saline soil area was significantly increased, there was a trend that non-saline soil and mild-saline soil were evoluted to moderate-saline soil. Secondly, soil salinity in the study area had a migration trend to central and eastern regions, with an increasing trend of salinization area and the average of salt content. Moreover, both the river and the terrain were the main influence factor of soil salt movement, while the river was the main influence factors on the large scale of space, and the terrain was the main influence factor on the small scale space.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

劉遷遷,蘇里坦,劉廣明,沙吾蘭·哈斯木,張音.伊犁察南灌區(qū)土壤鹽分時空變異特征與運(yùn)移機(jī)理研究[J].農(nóng)業(yè)機(jī)械學(xué)報,2017,48(12):221-228. LIU Qianqian, SU Litan, LIU Guangming, SHAWULAN·Hasimu, ZHANG Yin. Spatio-temporal Variation and Migration Mechanism of Soil Salinity in Chanan Irrigation Area of Ili[J]. Transactions of the Chinese Society for Agricultural Machinery,2017,48(12):221-228.

復(fù)制
分享
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2017-03-08
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2017-12-10
  • 出版日期: