典型文献
The quality attribute of watershed ecosystem is more important than the landscape attribute in controlling erosion of red soil in southern China
文献摘要：
Landscape and quality attributes are major ecosystem characteristics closely associated with soil con-servation service(SCS).However,the intrinsic mechanisms by which these two attributes influence SCS are still unclear.Therefore,this study quantitatively analyzed the landscape pattern,ecological quality,and SCS in the Lianshui River watershed(a typical soil and water loss area of red soil in southern China)and its sub-watersheds in 2019.The boosted regression tree model was used to explore the influence of 15 factors(i.e.,landscape and quality attributes)on SCS at the sub-watershed scale.According to the results,compared with the landscape attribute,the quality attribute of the watershed ecosystem could better explain the spatial heterogeneity of SCS across 66 sub-watersheds.The overall degree of influence of five quality factors on SCS reached 57.81％,with the highest being the normalized differential build-up and bare soil index(NDBSI),at 25.11％.Among 10 landscape factors,aggregation had the greatest in-fluence on SCS,at 28.64％.The relationships between key influencing factors and SCS were non-monotonic and non-linear,with threshold effects.For example,NDBSI values of 0.18-0.41 had a posi-tive influence on SCS,while NDBSI values of 0.41-0.65 had a negative influence on SCS.The findings broaden our understanding of the response of SCS to changes in landscape and quality attributes at the sub-watershed scale,and could offer comprehensive support for soil erosion management in the watershed ecosystem.
文献关键词：
中图分类号：
作者姓名：
Qing Zhu;Xi Guo;Jiaxin Guo;Jun Wu;Yingcong Ye;Wenbo Cai;Shiyu Liu
作者机构：
School of Design,Shanghai Jiao Tong University,Shanghai,200240,China;Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province,Jiangxi Agricultural University,Nanchang,Jiangxi,330045,China;College of Land Resource and Environment,Jiangxi Agricultural University,Nanchang,Jiangxi,330045,China;State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-environment Sciences,Chinese Academy of Sciences,Beijing,100085,China
文献出处：
引用格式：
[1]Qing Zhu;Xi Guo;Jiaxin Guo;Jun Wu;Yingcong Ye;Wenbo Cai;Shiyu Liu-.The quality attribute of watershed ecosystem is more important than the landscape attribute in controlling erosion of red soil in southern China)[J].国际水土保持研究（英文）,2022(03):507-517
A类：
Lianshui
B类：
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AB值：
0.460691
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