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

黑河流域NPP对气候变化及人类活动的响应

作者

程春晓; 徐宗学; 张淑荣; 王志慧

机构

黄河水利委员会黄河水利科学研究院; 北京师范大学水科学研究院; 水利部黄土高原水土流失过程与控制重点实验室

摘要

基于改进的CASA光能利用率模型, 利用Spot VEGETATION逐旬NDVI数据, 对黑河流域1998—2007年植被NPP进行了估算, 在掌握10年黑河流域植被NPP变化趋势基础上, 探讨不同类型植被NPP对气候变化的响应机制, 定量评估2000年后黑河调水与生态保护建设工程的实施效果. 结果表明: 从1998—2001年间植被覆盖区域年NPP处于显著下降趋势; 而2001—2007年间植被类型NPP处于显著上升趋势, 2001年成为这10年间NPP趋势变化的转折点. 在大规模黑河调水与生态保护建设之后(200 2 — 2007年)的5年期间, 黑河上、中、下游所有土地覆盖类型的NPP残差均大于0 , 表明调水与生态建设工程已经取得成效. 人类活动对中游NPP平均贡献率11.5 %, 对上游NPP平均贡献率5. 29 %, 对下游NPP平均贡献率3. 23 %.

关键词

黑河; 植被; NPP ;气候变化;人类活动

引用

程春晓; 徐宗学; 张淑荣; 王志慧. 黑河流域NPP对气候变化及人类活动的响应.[J]. 北京师范大学学报(自然科学版),2016,52(5)571-579.

基金

国家自然科学基金重大计划重点支持资助项目(91125015)

分类号

X82

DOI

10.16360/j.cnki.jbnuns.2016.05.007

Title

Response of NPP to climate change and human activities in the Heihe River basin

Author

CHENG Chunxiao; XU Zongxue; ZHANG Shurong; WANG Zhihu

Affiliations

Yellow River Institute of Hydraulic Research; College of Water Science, Beijing Normal University; Key Laboratory of Soil and Water Loss in the Loess Plateau, the Ministry of Water Resource

Abstract

Annual net primary Productivity (NPP) in the Heihe River basin from 1998 to 2007 was estimated on temporal scale of ten-days from Spot VEGETATION NDVI data set with modified CASA light use efficiency model. Changing tendency of NPP in the Heihe River basin from 1998 to 2007 was analyzed . Response of NPP to climate change for various land cover types in upper, middle and lower reaches was also investigated. Effects of water transfer project in the Heihe River and ecological constructio nonvegetation NPP change were quantitatively assessed after separating contributions of climate change and human activities . It was found that NPP of vegetated area experienced asignificant decrease from 1998 to 2001 , but it increased significantly from 2001 to 2007. Year 2001 is the key transition point of NPP change in the last ten years, coinciding with deployment time of water transfer project and ecological construction. During the 5 years (2002-2007) after implementation of water transfer project and ecological construction, the residuals of mean NPP for various land cover types in upper, middle and lower reaches are greater than, indicating that water transfer project and ecological construction have had apsi t i v e impact on ecosystem. The contribution rate of human activities on NPP in middle, upper and lower reaches was 11.5 %, 5.29 % and 3.23 %, respectively.

Key words

Heihe River; vegetation ; NPP ; climate change; human activities

cite

CHENG Chunxiao; XU Zongxue; ZHANG Shurong; WANG Zhihu. Response of NPP to climate change and human activities in the Heihe River basin [J]. Journal of Beijing Normal University (Natural Science), 2016,52(5):409-412.

DOI

10.16360/j.cnki.jbnuns.2016.05.007

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