Rainfall partitioning in young clonal plantations Eucalyptus species in a subtropical environment,and implications for water and forest management
作者机构：Soils DepartmentUniversidade Federal de Santa Maria(UFSM).Avenida Romima 1000Santa MariaRSBrazil Instituto Tecnoldgico Vale.Rua Boaventura da Silva955UmarizalBelemPABrazil Department of Ecology and Conservation BiologyTexas A&M University(TAMU)534 John Kimbrough Blvd.Room 305College StationTXUSA
出 版 物：《International Soil and Water Conservation Research》 (国际水土保持研究（英文）)
年 卷 期：2021年第9卷第3期
页 面：474-484页
核心收录：
学科分类：0710[理学-生物学] 0818[工学-地质资源与地质工程] 09[农学] 0903[农学-农业资源与环境] 0815[工学-水利工程] 0901[农学-作物学] 0833[工学-城乡规划学] 0713[理学-生态学] 0834[工学-风景园林学（可授工学、农学学位）] 090301[农学-土壤学]
基 金：the Foundation for Research Support of the State of Rio Grande do Sul(Fapergs) the Coordination for the Improvement of Higher Education Personnel(Capes)-Finance code 001 and the National Council for Scientific and Technological Development(CNPq)
主 题：Water balance Blue-green water Forest hydrology Rainfall interception Rainfall throughfall
摘 要：Different canopy characteristics of industrial eucalyptus may lead to differences in water evaporation and availability to *** study aims to understand rainfall partitioning in a young clonal plantation(age of 2-4.5 years)of three eucalyptus species by relating tree parameters:diameter at breast height,total height,and leaf area *** measured rainfall,throughfall,stemflow and litter interception,along with the tree *** eucalyptus trees had rainfall interception varying between 22 mm(for 178 mm of rainfall)and 42 mm(for 87 mm of te rainfall),throughfall between 106 mm(for 186 mm of rainfall)and 44 mm(for 74 mm of rainfall),and stemflow between 0.5 mm(for 92 mm of rainfall)and 1.4 mm(for 24 mm of rainfall).For the three species,rainfall interception varied between 12 and 48%,throughfall between 57 and 90%,and stemflow between 0.3 and 5.4%.The coefficient of determination between interception and rainfall was 0.76,indicating interception depends on other variables,possibly including antecedent rainfall,rainfall intensity,and *** decreased with a reduction in leaf area index caused by eucalyptus *** *** had 0.75 mm of throughfall per 1 mm of rainfall,whereas in *** and E saligna,these ratios were 0.71 and 0.68,*** in *** and *** had a higher positive relationship with the diameter at breast height of the trees,whereas in *** the highest relationship was with the *** results contribute to establishing management strategies,such as choosing suitable eucalyptus species to local climate,and to improve the synchronization of crop-demand versus soil-water-supply while maintaining streamflow to fulfill ecological and production needs.
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