Estimating root mass in young hybrid poplar trees using the electrical capacitance method

被引:57
作者
Preston, GM [1 ]
McBride, RA [1 ]
Bryan, J [1 ]
Candido, M [1 ]
机构
[1] Univ Guelph, Dept Land Resource Sci, Guelph, ON N1G 2W1, Canada
关键词
afforestation; DN clone; LCR meter; phytoremediation; xylem;
D O I
10.1023/B:AGFO.0000024439.41932.e2
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 [作物学];
摘要
A preliminary field study was conducted on root mass of young hybrid polar trees (Populus deltoides x P. nigra) using the electrical capacitance method. The objective of this study was to develop a simple calibration relationship that would enable root mass (fresh or dry) to be estimated for young hybrid poplar trees grown in mineral soils using simple, non-intrusive measurements of electrical capacitance. For first-year potted saplings (n = 33), strong linear and positive correlations were found between both root dry mass (adjusted r(2) = 0.895, P < 0.001) and root fresh mass (adjusted r(2) = 0.866, P < 0.001) and root electrical capacitance for the particular DN hybrid poplar clone studied. When augmented with data from third-year DN saplings grown in a more harsh landfill environment, a somewhat less strong curvilinear relationship was indicated with root dry mass (adjusted r(2) = 0.780, P < 0.001, n = 50). This rapid field method may be capable of providing adequate estimates of root mass for young trees in a variety of applications, such as afforestation, agroforestry or phytoremediation studies.
引用
收藏
页码:305 / 309
页数:5
相关论文
共 17 条
[1]
BOX JE, 1996, PLANT ROOTS HIDDEN H, P193
[2]
EVALUATION OF SIZE OF A PLANTS ROOT-SYSTEM USING ITS ELECTRICAL CAPACITANCE [J].
CHLOUPEK, O .
PLANT AND SOIL, 1977, 48 (02) :525-532
[3]
Effect of divergent selection for root size in field-grown alfalfa [J].
Chloupek, O ;
Skácel, M ;
Ehrenbergerova, J .
CANADIAN JOURNAL OF PLANT SCIENCE, 1999, 79 (01) :93-95
[4]
EVALUATION OF A SINGLE PROBE CAPACITANCE METER FOR ESTIMATING HERBAGE YIELD [J].
CURRIE, PO ;
HILKEN, TO ;
WHITE, RS .
JOURNAL OF RANGE MANAGEMENT, 1987, 40 (06) :537-541
[5]
IN-SITU ROOT EXTENT MEASUREMENTS BY ELECTRICAL CAPACITANCE METHODS [J].
DALTON, FN .
PLANT AND SOIL, 1995, 173 (01) :157-165
[6]
GONZALEZ JE, 2001, 5 INT SCI M CASS BIO
[7]
Potential for climate change mitigation through afforestation: an economic analysis of fossil fuel substitution and carbon sequestration benefits [J].
Peter J. Graham .
Agroforestry Systems, 2003, 59 (1) :85-95
[8]
Kafkafi U., 2002, PLANT ROOTS HIDDEN H, P295
[9]
ROOT SIZE ESTIMATES OF RED-CLOVER AND ALFALFA BASED ON ELECTRICAL CAPACITANCE AND ROOT DIAMETER MEASUREMENTS [J].
KENDALL, WA ;
PEDERSON, GA ;
HILL, RR .
GRASS AND FORAGE SCIENCE, 1982, 37 (03) :253-256
[10]
SEASONAL TRENDS AND EFFECTS OF TEMPERATURE AND RAINFALL ON STEM ELECTRICAL CAPACITANCE OF SPRUCE AND FIR TREES [J].
LEKAS, TM ;
MACDOUGALL, RG ;
MACLEAN, DA ;
THOMPSON, RG .
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 1990, 20 (07) :970-977