Arid
DOI10.3390/rs8080692
Degradation of Non-Photosynthetic Vegetation in a Semi-Arid Rangeland
Jackson, Hasan; Prince, Stephen D.
通讯作者Jackson, Hasan
来源期刊REMOTE SENSING
ISSN2072-4292
出版年2016
卷号8期号:8
英文摘要

Land degradation in drylands is the process in which undesirable conditions emerge due to human and natural causes. Despite the particularly deleterious effects of degradation, and it’s potentially irreversible nature, regional assessments have provided conflicting extents, rates, and severities of degradation, both globally and regionally. Current monitoring of degradation relies upon the detection of green, photosynthetically active parts of vegetation (e.g., leaves). Less is known, however, about the effect of degradation on the non-photosynthetic components of vegetation (e.g., wood, stems, leaf litter) and the relationship between photosynthetic vegetation (PV), non-photosynthetic vegetation (NPV), and bare soil under degraded conditions (BS). The major objective of the study was to evaluate regional patterns of fractional cover (i.e., PV, NPV, BS) under degraded and non-degraded NPP conditions in a managed rangeland in north Queensland, Australia. Homogenous environmental conditions were identified and each of NPP, PV, NPV, and BS were scaled according to their potential, reference values. We found a strong spatial and temporal correlation between scaled NPP with both scaled PV and scaled BS. Drastic differences were also found for PV and BS between degraded and non-degraded conditions. NPV displayed similarity to both PV and BS, however no clear relationship was found for NPV in all areas, irrespective of degradation conditions.


英文关键词degradation fractional cover non-photosynthetic vegetation net primary productivity drylands
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000382458700077
WOS关键词ABSORPTION INDEX CAI ; LAND DEGRADATION ; PHOTOSYNTHETIC VEGETATION ; BOTHRIOCHLOA-PERTUSA ; EO-1 HYPERION ; AUSTRALIA ; COVER ; SOIL ; PASTURE ; VARIABILITY
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/2XILL650/195969
作者单位Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA
推荐引用方式
GB/T 7714
Jackson, Hasan,Prince, Stephen D.. Degradation of Non-Photosynthetic Vegetation in a Semi-Arid Rangeland[J],2016,8(8).
APA Jackson, Hasan,&Prince, Stephen D..(2016).Degradation of Non-Photosynthetic Vegetation in a Semi-Arid Rangeland.REMOTE SENSING,8(8).
MLA Jackson, Hasan,et al."Degradation of Non-Photosynthetic Vegetation in a Semi-Arid Rangeland".REMOTE SENSING 8.8(2016).
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