Arid
DOI10.1016/j.jag.2017.05.007
Beyond trend analysis: How a modified breakpoint analysis enhances knowledge of agricultural production after Zimbabwe’s fast track land reform
Hentze, Konrad1; Thonfeld, Frank1,2; Menz, Gunter1,2
通讯作者Hentze, Konrad
来源期刊INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
ISSN0303-2434
出版年2017
卷号62页码:78-87
英文摘要

In the discourse on land reform assessments, a significant lack of spatial and time-series data has been identified, especially with respect to Zimbabwe’s "Fast-Track Land Reform Programme" (FTLRP). At the same time, interest persists among land use change scientists to evaluate causes of land use change and therefore to increase the explanatory power of remote sensing products. This study recognizes these demands and aims to provide input on both levels: Evaluating the potential of satellite remote sensing time-series to answer questions which evolved after intensive land redistribution efforts in Zimbabwe; and investigating how time-series analysis of Normalized Difference Vegetation Index (NDVI) can be enhanced to provide information on land reform induced land use change. To achieve this, two time-series methods are applied to MODIS NDVI data: Seasonal Trend Analysis (STA) and Breakpoint Analysis for Additive Season and Trend (BFAST). In our first analysis, a link of agricultural productivity trends to different land tenure regimes shows that regional clustering of trends is more dominant than a relationship between tenure and trend with a slightly negative slope for all regimes. We demonstrate that dusters of strong negative and positive productivity trends are results of changing irrigation patterns. To locate emerging and fallow irrigation schemes in semi-arid Zimbabwe, a new multi-method approach is developed which allows to map changes from bimodal seasonal phenological patterns to unimodal and vice versa. With an enhanced breakpoint analysis through the combination of STA and BFAST, we are able to provide a technique that can be applied on large scale to map status and development of highly productive cropping systems, which are key for food production, national export and local employment. We therefore conclude that the combination of existing and accessible time-series analysis methods: is able to achieve both: overcoming demonstrated limitations of MODIS based trend analysis and enhancing knowledge of Zimbabwe’s FTLRP.


英文关键词MODIS NDVI Seasonal trend analysis BFAST Zimbabwe Fast track land reform programme Crop mapping
类型Article
语种英语
国家Germany
收录类别SCI-E ; SSCI
WOS记录号WOS:000408787100008
WOS关键词TIME-SERIES ; COVER CHANGE ; DEGRADATION ; MODIS ; DISTRICT ; RAINFALL ; IMPACTS ; AFRICA ; MATTER
WOS类目Remote Sensing
WOS研究方向Remote Sensing
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/199698
作者单位1.Univ Bonn, Remote Sensing Res Grp, Dept Geog, Meckenheimer Allee 166, D-53115 Bonn, Germany;
2.Univ Bonn, Ctr Remote Sensing Land Surfaces, Walter Flex Str 3, D-53113 Bonn, Germany
推荐引用方式
GB/T 7714
Hentze, Konrad,Thonfeld, Frank,Menz, Gunter. Beyond trend analysis: How a modified breakpoint analysis enhances knowledge of agricultural production after Zimbabwe’s fast track land reform[J],2017,62:78-87.
APA Hentze, Konrad,Thonfeld, Frank,&Menz, Gunter.(2017).Beyond trend analysis: How a modified breakpoint analysis enhances knowledge of agricultural production after Zimbabwe’s fast track land reform.INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,62,78-87.
MLA Hentze, Konrad,et al."Beyond trend analysis: How a modified breakpoint analysis enhances knowledge of agricultural production after Zimbabwe’s fast track land reform".INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION 62(2017):78-87.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Hentze, Konrad]的文章
[Thonfeld, Frank]的文章
[Menz, Gunter]的文章
百度学术
百度学术中相似的文章
[Hentze, Konrad]的文章
[Thonfeld, Frank]的文章
[Menz, Gunter]的文章
必应学术
必应学术中相似的文章
[Hentze, Konrad]的文章
[Thonfeld, Frank]的文章
[Menz, Gunter]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。