气候变化领域集成服务门户(CCPortal): The effects of selective timber harvesting in buffer strips along headwater channels using best management practices on runoff, turbidity and suspended sediment yield in an intensively cut eucalypt forest in southeastern Australia

CCPortal

DOI	10.1016/j.foreco.2019.117812
	The effects of selective timber harvesting in buffer strips along headwater channels using best management practices on runoff, turbidity and suspended sediment yield in an intensively cut eucalypt forest in southeastern Australia
	Walsh P.; Jakeman A.; Thompson C.
发表日期	2020
ISSN	0378-1127
卷号	458
英文摘要	In a native forest on the south coast of New South Wales, Australia, five channels were instrumented with rain gauges and weirs to monitor rainfall, streamflow, turbidity, and suspended sediment yield over a seven and a half year period. After a five year calibration period, four of the catchments were harvested, while one remained as a control. In the harvested catchments there were two replicated treatments; selective harvesting in the 10 m buffers using Best Management Practices (BMPs), and no harvesting in the 10 m buffers. Results of the statistical analysis showed that harvesting had a significant impact on runoff and suspended sediment yield relative to the control, but did not have a significant impact on turbidity. There was no significant difference in post-harvest runoff, turbidity or suspended sediment yield between the treatments. In the treatment where there was no harvesting in the buffers, the significant increase in suspended sediment yield dissipated after 18 months and was accompanied by a hydrological recovery in peak flows toward pre-harvest values. In the treatment where there was harvesting in the buffers, there was no hydrological recovery in peak flows, nor was there a decrease in suspended sediment yields 18 months after harvesting. This lack of a hydrological recovery in the treatment where there was harvesting in the buffers had no significant effect on turbidity, hence the implementation of BMPs in the buffer strips along the ephemeral first-order channels were effective in maintaining the water quality status in an intensively harvested eucalypt forest. The implementation of BMPs outside of the selectively harvested buffers that are designed to reduce erosion on hillslopes and sediment delivery to streams were also effective in maintaining the water quality status in the same harvesting operation. © 2019 Elsevier B.V.
关键词	Catchments Harvesting Logging (forestry)Rain Rain gages Recovery Runoff Timber Turbidity Water quality Best management practice (BMPs)Best management practices Buffer strip Eucalypt forest Harvesting operations New South Wales , Australia South-eastern Australia Suspended sediment yields Suspended sediments best management practice buffer zone evergreen forest forest management headwater runoff sediment yield stream channel suspended sediment timber harvesting turbidity Harvesting Rain Recovery Runoff Sediments Suspended Solids Turbidity Water Quality Australia New South Wales
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133057
推荐引用方式 GB/T 7714	Walsh P.,Jakeman A.,Thompson C.. The effects of selective timber harvesting in buffer strips along headwater channels using best management practices on runoff, turbidity and suspended sediment yield in an intensively cut eucalypt forest in southeastern Australia[J]. Forest Ecology and Management,2020,458.
APA	Walsh P.,Jakeman A.,&Thompson C..(2020).The effects of selective timber harvesting in buffer strips along headwater channels using best management practices on runoff, turbidity and suspended sediment yield in an intensively cut eucalypt forest in southeastern Australia.,458.
MLA	Walsh P.,et al."The effects of selective timber harvesting in buffer strips along headwater channels using best management practices on runoff, turbidity and suspended sediment yield in an intensively cut eucalypt forest in southeastern Australia".458(2020).