首页    编委会    编辑部    历任主编    获奖信息    征稿简则    友情链接    出版道德    English    旧版主页
  在线期刊
       最新录用
       当期目次
       过刊浏览

  下载专区
       版权协议
       征稿范文
       来稿登记表
       录用证明

  联系我们

投稿e-mail: jbnuns_sub@bnu.edu.cn

主编e-mail: jbnuns_eic@bnu.edu.cn

办公地点:北京师范大学 科技楼A区216,218,220室

电话:(010)58807851,58802050,58807872,58807713

通信处:北京市海淀区新街口外大街19号北京师范大学理科学报编辑部

邮政编码:100875

办公室e-mail: jbnuns@bnu.edu.cn

本网站暂不提供全文下载,如需全文下载请点击

中国知网

 

标题

近15年来呼伦贝尔沙地土地 沙漠化发展及其驱动力

作者

李 姣 张春来 李 庆 沈亚萍 贾文茹 田金鹭

机构

北京师范大学地表过程与资源生态国家重点实验室, 防沙治沙教育部工程研究中心

摘要

基于2001—2015年MODISNDVI遥感数据反演了呼伦贝尔沙地近15年来植被覆盖度和沙漠化土地的空 间格局与变化.结果表明:2001年以来呼伦贝尔沙地土地沙漠化总体有所减弱,但年际变化显著.其中: 2001—2007年 沙漠化土地以扩张为主; 2007—2013年随植被覆盖缓慢恢复,沙漠化逐渐逆转;2013—2015年沙漠化有所加剧.降水量 年际变化是该区沙漠化逆转或加剧最重要的驱动力.在气候变化背景下,未来几十年内该区沙漠化具有正过程发展趋势

关键词

呼伦贝尔沙地, 沙漠化, 驱动力

引用

郭 涛 陈海洋 滕彦国 李 娇 陈瑞晖. 东北典型农产区流域地下水水质评价与污染源识别.[J]. 北京师范大学学报(自然科学版),2017,53(3): 316-322.

基金

国家自然科学基金资助项目(41330746)

分类号

P931.3

DOI

10.16360/j.cnki.jbnuns.2017.03.013

Title

Development of sandy desertification and driving forces in Hulun Buir sandy land in the past 15 years

Author

LI Jiao ZHANG Chunlai LI Qing SHEN Yaping JIA Wenru TIAN Jinlu

Affiliations

State Key Laboratory of Earth Surface Processe sand Resource Ecology, MOE Engineering Research Center of Desertification and Blown-sand Control, Beijing Normal University

Abstract

Spatial and temporal changes invegetation coverage and desertification in Hulun Buir sandy land over the past 15 years were examined from MODIS NDVI remote sensing data. Desertification was found to be weakened from 2001 overall but with remarkable annual variations. Land desertification expanded from 2001 to 2007. Gradual reversal of desertification was found from 2007 to 2013, after slow recovery invegetation coverage. Such process intensified slightly from 2013 to 2015. Annual fluctuations in precipitation were the most important driving force for desertification reversion or exacerbation. Due to climatic changes, sandy desertification in Hulun Buir sandy land is likely to be exacerbated in the next few decades.

Key words

Hulun Buir sandy land; development of desertification; driving force

cite

LI Jiao ZHANG Chunlai LI Qing SHEN Yaping JIA Wenru TIAN Jinlu. Development of sandy desertification and driving forces in Hulun Buir sandy land in the past 15 years [J]. Journal of Beijing Normal University (Natural Science), 2017,53(7): 316-322.

DOI

10.16360/j.cnki.jbnuns.2017.03.013

Copyright © 2014 Journal of Beijing Normal University (Natural Science)
Designed by Mr. Sun Chumin. Email: cmsun@mail.bnu.edu.cn