Wood ash stone near Sydney, NSW - a carbonate pedologial feature in an acidic soil

GS Humphreys; PA Hunt; R Buchanan

doi:10.1071/sr9870115

Wood ash stone near Sydney, NSW - a carbonate pedologial feature in an acidic soil

Soil Research ◽

10.1071/sr9870115 ◽

1987 ◽

Vol 25 (2) ◽

pp. 115 ◽

Cited By ~ 18

Author(s):

GS Humphreys ◽

PA Hunt ◽

R Buchanan

Keyword(s):

North America ◽

Wood Ash ◽

Acidic Soil ◽

Parent Materials ◽

Standing Trees ◽

Recorded Occurrence

Wood-ash stone, composed mainly of calcite (XRD, XRF, EMS and petrological determination), has been found within the remains of a large, standing and mostly burnt tree (Angophora costata) near Sydney, N.S.W. This may be the first recorded occurrence of wood-ash stone in Australia and outside North America. Slow burning of standing trees is proposed as a mechanism for producing carbonate features in nutrient poor and acidic soil parent materials such as the quartzose Hawkesbury Sandstone.

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A case study review of wood ash land application programs in North America

TAPPI Journal ◽

10.32964/tj20.2.111 ◽

2021 ◽

Vol 20 (2) ◽

pp. 111-120

Author(s):

ILICH LAMA ◽

DEREK SAIN

Keyword(s):

North America ◽

Case Studies ◽

Soil Quality ◽

Management Practices ◽

Agricultural Land ◽

Forest Products ◽

Wood Ash ◽

Land Application ◽

Agricultural Application ◽

Application Programs

Several regulatory agencies and universities have published guidelines addressing the use of wood ash as liming material for agricultural land and as a soil amendment and fertilizer. This paper summarizes the experiences collected from several forest products facility-sponsored agricultural application programs across North America. These case studies are characterized in terms of the quality of the wood ash involved in the agricultural application, approval requirements, recommended management practices, agricultural benefits of wood ash, and challenges confronted by ash generators and farmers during storage, handling, and land application of wood ash. Reported benefits associated with land-applying wood ash include increasing the pH of acidic soils, improving soil quality, and increasing crop yields. Farmers apply wood ash on their land because in addition to its liming value, it has been shown to effectively fertilize the soil while maintaining soil pH at a level that is optimal for plant growth. Given the content of calcium, potassium, and magnesium that wood ash supplies to the soil, wood ash also improves soil tilth. Wood ash has also proven to be a cost-effective alternative to agricultural lime, especially in rural areas where access to commercial agricultural lime is limited. Some of the challenges identified in the review of case studies include lengthy application approvals in some jurisdictions; weather-related issues associated with delivery, storage, and application of wood ash; maintaining consistent ash quality; inaccurate assessment of required ash testing; potential increased equipment maintenance; and misconceptions on the part of some farmers and government agencies regarding the effect and efficacy of wood ash on soil quality and crop productivity.

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Proconchidium from Late Ordovician strata of Brodeur Peninsula, Baffin Island, Arctic Canada

Journal of Paleontology ◽

10.1017/s0022336000040919 ◽

1989 ◽

Vol 63 (1) ◽

pp. 25-33 ◽

Cited By ~ 8

Author(s):

Rong Jia-Yu ◽

Brian Jones ◽

F. W. Nentwich

Keyword(s):

North America ◽

Late Ordovician ◽

Baffin Island ◽

Arctic Canada ◽

Internal Structures ◽

Biogeographic Provinces ◽

Recorded Occurrence

Proconchidium brodeurensis n. sp. occurs 212 m above the base of member B of the Baillarge Formation on Brodeur Peninsula, Baffin Island, 8 m below the Ordovician–Silurian boundary. Study of Proconchidium shows that it can be easily distinguished from Eoconchidium but possesses many characters that are similar to those in Tcherskidium. Analysis of internal structures suggests that the three genera can be distinguished from each other and belong to Virgianidae. Tcherskidiidae is a synonym of Virgianidae and should be abandoned.This represents the first recorded occurrence of Proconchidium in North America. Although this genus and its related genera Tcherskidium Sapelnikov, 1972, and Eoconchidium Rozman, 1967, are common in Ashgill strata of Eurasia, they have not been recorded or illustrated from North America. This led to the suggestion that distinct brachiopod biogeographic provinces may have existed during the Ashgill. The occurrence of these genera probably indicates that they may have lived in mostly tropical and subtropical zones.

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Dead standing trees contribute to the conservation of arthropods in burnt woodland of Kings Park, Western Australia

Pacific Conservation Biology ◽

10.1071/pc110361 ◽

2011 ◽

Vol 17 (4) ◽

pp. 361

Author(s):

Jonathan D Majer ◽

Syprianus Radho Toly ◽

Harry F Recher

Keyword(s):

North America ◽

Inner City ◽

Western Australia ◽

Food Source ◽

Ecosystem Functions ◽

Beetle Species ◽

Regular Feature ◽

Eucalyptus Marginata ◽

Standing Trees ◽

Ordinal Level

Dead, standing trees, commonly referred to as stags in Australia and as snags in North America, are a regular feature of forests and woodlands. Although previously regarded as useless, often meriting removal, stags are now recognized as important for wildlife. We quantified the abundance of arthropods that visited or used the trunks of stags in Kings Park, an inner-city woodland park in Perth, Western Australia. Stags ranging from around 4 to 11 years since death were compared with live trees of the same species; Jarrah Eucalyptus marginata, Tuart E. gomphocephala, and Fraser’s Sheoak Allocasuarina fraseriana. At the ordinal level, stags were visited or used by almost as many taxa of arthropods as live trees. One group, the beetles (Coleoptera), when considered at the morphospecies level, was found to be only slightly less diverse on Eucalyptus stags than on live trees and was more diverse on sheoak stags than live sheoaks. A large proportion of the beetle species was specific to either live trees or stags, suggesting that the existence of stags enriches the diversity of arthropods in forests and woodlands. In addition to contributing to arthropod diversity and conservation, these organisms provide a food source for insectivorous vertebrates, as well as contributing to core ecosystem functions, such as nutrient cycling. Retention of stags therefore has important conservation benefits and, other than when there is a risk to public safety, stags should be protected and allowed to fall naturally in the course of time.

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Evaluasi Plasma Nutfah Kacang Tunggak (Vigna unguiculata L.) di Lahan Masam

Buletin Plasma Nutfah ◽

10.21082/blpn.v16n1.2010.p44-48 ◽

2016 ◽

Vol 16 (1) ◽

pp. 44 ◽

Cited By ~ 1

Author(s):

Mamik Setyowati ◽

Sutoro Sutoro

Keyword(s):

Abiotic Stress ◽

Vigna Unguiculata ◽

Plant Genetic Resources ◽

Germplasm Collection ◽

Soil Condition ◽

Acidic Soil ◽

Abiotic And Biotic Stress ◽

Stress Evaluation ◽

Parent Materials ◽

New Varieties

Plant genetic resources are as a source of genetic variability and can be used to develop new varieties tolerant to abiotic and biotic stress. Evaluation of cowpea germplasm to abiotic stress, such as acidic soil has to be done to obtain information of their tolerance. Cowpea germplasm collection held in ICABIOGRAD was tested under acidic soil condition in Jasinga, West Java and Bogor as control during March-June 2007. The criteria of tolerance to acidic soil was determined when the grain yield of cowpea under acidic soil more than 80% compare to those yield under non acidic soil, while susceptible to acidic soil when lower than 25%. Result of experiment showed that accession of LO-3-38, Ces-41-6, TVX-4661-01D-A, IT82-889-A, TV.3381-0-2j-B and Kacang Tolo Loreng were tolerant to acidic soil, while Kacang Dadap dan Kacang Tolo were susceptible. These accessions could be used as parent materials for genetic study related to acidic soil stress.

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