SPECIFICATIONS FOR SOIL SURVEY INTENSITY (SURVEY ORDER) IN CANADA

1985 ◽  
Vol 65 (3) ◽  
pp. 543-553
Author(s):  
K. W. G. VALENTINE ◽  
A. LIDSTONE

This study was an evaluation of soil survey methods, particularly soil survey intensity (survey order), based on information from 53 recent surveys in Canada. The data were gathered by questionnaire and indicate that revisions to the specifications outlined by the Expert Committee on Soil Survey are required.(1) An index calculated from the density (number of inspections per unit area) and distribution (percent of delineations with at least one inspection) of soil inspections allocates a survey unambiguously to one survey intensity level (SIL).(2) For each SIL, ranging from 1 (very detailed) to 5 (exploratory), the proportion of delineations with at least one inspection is reduced, and a smaller proportion of the total length of soil boundaries is checked in the field. A closer spacing of traverses at each SIL is recommended.Other information shows that SIL 5 surveys are more appropriately published at a scale of 1:250 000 than the usual 1:100 000; a smaller proportion of time is spent in the field in surveys of lower intensity; soil surveyors concentrate more on describing areas than verifying boundaries; and rates of progress at a given intensity level vary among different physiographic regions, with slowest progress in the Canadian Shield. Key words: Soil survey, intensity, order, index, Canada

1987 ◽  
Vol 67 (4) ◽  
pp. 765-778 ◽  
Author(s):  
C. A. FOX ◽  
C. TARNOCAI ◽  
R. TROWBRIDGE

The Folisol great group within the Organic soil order was expanded by the Expert Committee on Soil Survey to include the subgroups Hemic, Humic, Lignic and Histic Folisols. Representative Folisols from the Coastal Western Hemlock biogeoclimatic zone in British Columbia were studied to document the macromorphology and chemical characteristics of these subgroups. A proposal for improving F and H horizon designations is also presented. This documentation and improvements to the classification system provide a better basis for the soil surveyor to recognize and account for thick accumulations (> 40 cm) of folic materials overlying mineral or peat materials as well as accumulations (> 10 cm) over rock or fragmental material. Key words: Folisols, organic material, soil classification, Organic soil order


ALQALAM ◽  
2013 ◽  
Vol 30 (1) ◽  
pp. 158
Author(s):  
Yusuf Somawinata

This article aims at describing the obseroance of wasiat wajibah (compulsory bequeathment) in the Islamic court of Banten, analyzing the provision of the substitute heir and adopted children in the Compilation of  Islamic Law (KHI). In addition, the ideal laws to manage the innheritance rules in Indonesia. This article is library research by using doctrinal approach and using case study and survey methods. The data was, then, analyzed by using analytical descriptive and analytical correlative methods. The result showed that the observance of wasiat wajibah in the Islamic court of  Banten employed by judges is by using the Mawali Hazairin’s Doctrine. The criteria of the adoption of substitute heir and adopted children in the KHI is the attempts of Ulama and many judgees junst in giving legal justice and certainty to the society.   Key Words: Islamic Inheritance Law, Compilation of Islamic Law, Islamic court of  Banten


1989 ◽  
Vol 67 (10) ◽  
pp. 2904-2911 ◽  
Author(s):  
Alexander L. McIlraith ◽  
Gordon G. C. Robinson ◽  
Jennifer M. Shay

Field experiments and survey methods were used to assess competition and interaction between Lemna minor L. and Lemna trisulca L. at Delta Marsh, Manitoba. Sites were dominated by one or the other species or codominated by both. Replacement series experiments predicted codominance of L. minor and L. trisulca in an unshaded eutrophic site but predicted L. minor dominance when run for a longer time. Similar experiments conducted in a shaded eutrophic site predicted L. minor dominance. Addition series experiments showed that intraspecific and interspecific competition occurred in the unshaded site. In a eutrophic unshaded ditch, high densities of L. minor suppressed L. trisulca. In a eutrophic shaded site, high densities of L. minor and green algae inhibited L. trisulca, and in a sunny, less eutrophic site high density of each species inhibited the other. In a transplant experiment, L. minor biomass in shaded enclosures approached that found naturally in two shaded sites. Lemna trisulca persisted when shaded. Vegetative biomass trends in an unshaded eutrophic marsh ditch indicated spring and fall L. trisulca dominance and summer L. minor dominance. Shaded eutrophic sites were dominated by L. minor, whereas a less eutrophic site was dominated by L. trisulca. A model is developed to explain dominance patterns, and seasonal life-history responses are considered. Key words: Lemna, duckweed, competition, interaction, resources, light, nutrients.


1970 ◽  
Vol 40 (1) ◽  
pp. 53-56 ◽  
Author(s):  
Syeda Sharmeen Sultana ◽  
Hosne Ara ◽  
Sheikh Shamimul Alam

Alocasia fallax Schott and A. odora (Roxb.) Koch (Araceae) were investigated cytogenetically to confirm their taxonomic status. There is no report of 2n chromosome number for A. fallax in the available literature and internet information. Therefore the 2n chromosome number (2n = 28) found in this study is probably the first report for A. fallax. Alocasia odora showed exactly double 2n chromosome number (2n = 56) from A. fallax. In addition to chromosome number, the other karyotypic features of A. odora were exactly double for that of A. fallax. The centromeric formulae of A. fallax was 24 m + 4 sm whereas it is just double in A. odora. Total length of 2n chromosome complement of A. odora (62.58 μm) was almost double to A. fallax. The range of chromosomal length of the two species was almost same. Moreover, A. odora plant is much taller than A. fallax. All of these data suggests that A. odora might be an autotetraploid of A. fallax which in course of evolution had undergone some changes in GC-rich repeats. Key words: Alocasia; CMA; Karyotype analysis DOI: http://dx.doi.org/10.3329/bjb.v40i1.7998 Bangladesh J. Bot. 40(1): 53-56, 2011 (June)


1993 ◽  
Vol 73 (1) ◽  
pp. 31-35 ◽  
Author(s):  
A. H. Teich ◽  
T. Welacky ◽  
A. Hamill ◽  
A. Smid

This study was carried out to determine if winter wheat in southwestern Ontario should be grown in rows narrower than the conventional 18 cm and if the current recommended seed rate of 3.2 million seeds ha−1 (msh) is adequate. We compared the effect of 10- and 20-cm row spacings and 1.6, 3.2, and 6.4 msh seed rates on grain yield, weed growth and yield of underseeded clover. Row spacing at a constant seed rate did not affect yield. With increasing seed rate there was an increase in yield, mainly through more heads per unit area, which more than compensated for a decrease in seeds per head. Narrow rows reduced the number of lamb’s-quarters and the overall weed count. The optimum seed rate for grain yield was 6.4 msh for ratios of seed cost:crop value less than 1.34. Key words: Narrow rows, weeds, yield, economic optimum


1979 ◽  
Vol 36 (1) ◽  
pp. 81-84 ◽  
Author(s):  
Ronald M. Leithiser ◽  
Karl F. Ehrlich ◽  
Alan B. Thum

A high volume pump (2.5 m3/min capacity at 6 m head) and conventional plankton nets (0.5 and 1.0 m diam) were operated side by side in two tests to evaluate the efficiency of each gear for sampling fish larvae within the intake structure of a coastal power plant. At intake channel current velocities up to 40 cm/s (the maximum tested), the pump in one test caught significantly more fish larvae than the nets. Compared to the pump, both sizes of plankton nets in each test greatly undersampled large larvae (over 5.0 mm total length). Our findings suggest that conclusions regarding ichthyoplankton entrainment based on data obtained with conventional plankton nets may be of questionable validity. Key words: ichthyoplankton, entrainment, pump, nets


2019 ◽  
Vol 6 (2) ◽  
pp. 94-106
Author(s):  
Ayi Yustiati ◽  
Nur Asiah

ABSTRACTThe research aim to determine growth pattern of kelabau carp caught by sempirai net used in Kampar, Rokan Hilir and Siak River, Riau province. This research was conducted on April to July 2017 in Biologi Perikanan Laboratory Fisheries and Marine Faculty Universitas Riau. The method used in this research is survey with descriptive quantitative data analyze. Parameters observed includes distribution of total length, relation of length and weight, and condition factor. Kelabau carp which caught in Kampar Desa Teluk Paman as much as 26 fishes, in Kampar Desa Langam as much as 35 fishes, in Rokan Hilir as much as 52 fishes, in Siak as much as 12 fishes. Kelabau carp which caught in Kampar River has the smallest size 110 mm and the largest size of 472 mm, in Rokan Hilir River has the smallest size of 95 mm and the largest size of 315 mm, and in Siak river has the smallest size of 249 mm and the largest size of 510 mm. Relation of length and weight kelabau carp in Kampar Desa langam and Rokan Hilir River is allometrik positive it means the weight increase faster than the length. Condition factor kelabau carp in Kampar Desa Teluk Paman ranged from 2,48-2,77, in Kampar Desa Langam ranged from 1,24-4,96, in Rokan Hilir ranged from 1,21-2,99, and in Siak ranged from 0,77-1,11. Key words: Kelabau, growth, kampar, rokan hilir, siak


2017 ◽  
Vol 5 (2) ◽  
pp. 6
Author(s):  
Shanti Emawati

<p><em>The research was conducted to calculate the break even point (BEP) of cattle breeding farm. Research was done from January to May 2007, located in Sleman District. Survey methods was done to collect primary data at the farm level and secondary data from related institution. Purposive sampling was applied to sellect farmers’ respondent. The BEP with calf sales calculation of keeping Simmental, Ongole and Limousine grade cattle were 8, 9 and 7 cows per farmer respectively, which mean that farmers will annually benefited from keeping cattle when the number of cows was larger than those of BEP.</em></p><p><em> </em></p><p><em>Key words : cattle breeding farm, BEP analysis</em></p>


Author(s):  
Federica Pieragostini ◽  
Bruno Gabriel Salvador Casara ◽  
Caterina Suitner

Globalization is making interethnic communication an increasingly widespread issue. The reduction of actual and psychological distances due to migratory flows and media communication increases contact opportunities between individuals from different ethnic groups. Communication between members belonging to different ethnic groups can also be considered a challenge as it brings in more general intergroup controversies. Ethnicity affects both verbal and nonverbal communication at different intensity levels. For example, using verbal communication, interethnic conflict may emerge through the use of hate speech, and—at a lower intensity level—may also emerge by the subtle use of pronouns (e.g., avoiding the use of “we” to exclude members of other groups). Similarly, in nonverbal communication, interethnic conflicts may strongly be evident in explicit exclusion behaviors, but also in subtler cues such as by enhancing spatial distance from persons belonging to other groups. Ethnic identities and their implications are also evident in and influenced by mass media narratives, which mirror, establish, and perpetuate inequalities and discrimination. Interethnic communication is therefore a challenge and an opportunity to understand and to improve relationships between ethnic groups.


2020 ◽  
Vol 63 (5) ◽  
pp. 1559-1570
Author(s):  
Feng Yu ◽  
Jane Frankenberger ◽  
Jason Ackerson ◽  
Benjamin Reinhart

HighlightsA fuzzy rating system was created based on published criteria for subirrigation suitability.Maps showing potential suitability for subirrigation were created for the U.S. Midwest.78,500 km2 across the U.S. Midwest is potentially suitability for subirrigation.Maps identify potential subirrigation locations pending onsite assessment.Abstract. Subirrigation through subsurface tile drains has potential to increase crop yields and improve water quality in tile-drained landscapes, but it has not been widely implemented. Identifying locations with high potential suitability for subirrigation may help the planning and implementation of this practice. In this study, we developed a fuzzy rating system for subirrigation suitability using the Gridded Soil Survey Geographic Database (gSSURGO). Maps of the fuzzy rating system identified locations of high potential suitability for subirrigation and highlighted physiographic regions highly conducive to the practice. We identified 78,500 km2, about 9%, of agricultural land in the Midwest with high potential suitability for subirrigation where onsite investigation may be targeted. The largest areas of high potential suitability were found in Minnesota, Illinois, and Indiana. Results from the fuzzy rating analysis are provided to the public through three channels: a downloadable data repository, map service, and web map tool. Ultimately, this study can facilitate the adoption of subirrigation by highlighting areas where subirrigation may potentially be a viable practice. Keywords: Controlled drainage, Fuzzy rating, Geographic information system (GIS), Gridded Soil Survey Geographic Database (gSSURGO), Midwestern U.S., Subirrigation.


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