Poducts>Waikato Peat Technique

Waikato Peat Technique

  • Methods how we monitor | Waikato Regional Council

    Using the current methodology (peat probing) intervals between measurements need to be between 8 and 10 years to pick up a statistically significant change in peat thickness. 1. Monitoring history. Peat thickness along transects were originally measured by land drainage engineers in the 1920s at Moanatuatua, Rukuhia, and Hauraki bogs. These transects were set out at 10 chain (200 m) intervalsОнлайн-запрос

  • Community Scoop » Aerial Surveying For Peat Subsidence

    07/10/2020· The Waikato region has approximately 40 per cent of New Zealand’s peatland resource. Drainage has allowed peat soils to contribute to the regional economy, butОнлайн-запрос

  • Peat lakes | Waikato Regional Council

    The Waikato peat lakes form the largest collection of peat lake habitat in New Zealand. They represent some of the few remaining areas of wetland once part of the formerly extensive Komakorau, Rukuhia and Moanatuatua peat bogs. The 31 peat lakes of the Waikato region are concentrated around the Waikato and Waipa districts and Hamilton city. On this page: How peat lakes differ from other lakesОнлайн-запрос

  • Waikato Peat Lakes Sediment Nutrient Removal Scoping Exercise

    Waikato Peat Lakes Sediment Nutrient Removal Scoping Exercise CBER Contract Report 78 Prepared for Environment Waikato By Carolyn L. Faithfull, David P. Hamilton, David F. Burger and Ian Duggan Centre for Biodiversity and Ecology Research, Department of Biological Sciences, School of Science and Engineering, The University of WaikatoОнлайн-запрос

  • (PDF) Waikato peat lakes sediment nutrient removal

    suitability of these techniques for use in the Waikato peat lakes. The Waikato pe at lake s are unique ecos ystems that once belonge d to a large peat . wetland system. They are concentratedОнлайн-запрос

  • The development of Waikato peat soils. CAB Direct

    The average C/N ratios of the peat samples ranged from 21 to 33, and the coefficient of N mineralization on incubation was only 0.3-0.4, being very much below values for representative mineral soils in New Zealand. Fertilizer trials showed that there was a good but short-lived response of grasses to 2-20 cwt./acre of NH4N03 or equivalent amounts of (NH4)2SO4 or NaN03, but heavy dressings of N...

  • Cited by: 1
  • Waikato peat lakes sediment nutrient removal scoping

    Hypolimnetic withdrawal is not a suitable nutrient reduction technique, as none of the Waikato peat lakes possesses a large anoxic hypolimnion, a long period of anoxia or a consistently large lake inflow. Hypolimnetic aeration may be useful in Lake Rotomanuka, as this the only peat lake known to regularly stratify and become anoxic during summer. Hypolimnetic aeration can break down stratification andОнлайн-запрос

  • Aerial Surveying For Peat Subsidence Taking Flight | Scoop

    Waikato Regional Council soil and land scientist Justin Wyatt said the Waikato region has 89,000ha of peat soils, with about 80 per cent drained for productive land uses.Онлайн-запрос

  • Fertiliser requirements for peat soils in the Waikato region

    In the Waikato, peat soils cover about 94 000 ha with 80% of the area now developed into agriculture and horticulture (Environment Waikato 1999). Developed peat soils are highly productive and can achieve annual herbage yields similar to mineral soils, although growth in late winter/early spring can be lower due to more severe N deficiency (Baars 1988). A wide range of horticultural crops areОнлайн-запрос

  • How we monitor | Waikato Regional Council

    Lakes Mangahia, Rotomanuka North, Areare, and Maratoto had automatic water level recorders installed between 1998 and 2001. These devices record water levels every 30 minutes and will allow lake levels to be tracked long-term. Additional recorders are to be installed in other Waikato peat lakes. How this indicator is compiledОнлайн-запрос

  • 3. Environmental rules – striking the balance Waikato

    The use and management of peat soils in the Waikato region must be consistent with the policies and rules of Environment Waikato. Peat farms that have significant wetlands on their boundaries will be subject to drainage restrictions that are based on the need to protect these wetlands. Environment Waikato’s Proposed Waikato Regional Plan (1998) controls land drainage in areas adjacent toОнлайн-запрос

  • Waikato peat lakes sediment nutrient removal scoping

    Hypolimnetic withdrawal is not a suitable nutrient reduction technique, as none of the Waikato peat lakes possesses a large anoxic hypolimnion, a long period of anoxia or a consistently large lake inflow. Hypolimnetic aeration may be useful in Lake Rotomanuka, as this the only peat lake known to regularly stratify and become anoxic during summer. Hypolimnetic aeration can break downОнлайн-запрос

  • Fertiliser requirements for peat soils in the Waikato region

    In the Waikato, peat soils cover about 94 000 ha with 80% of the area now developed into agriculture and horticulture (Environment Waikato 1999). Developed peat soils are highly productive and can achieve annual herbage yields similar to mineral soils, although growth in late winter/early spring can be lower due to more severe N deficiency (Baars 1988). A wide range of horticultural crops areОнлайн-запрос

  • (PDF) Waikato peat lakes sediment nutrient removal

    suitability of these techniques for use in the Waikato peat lakes. The Waikato pe at lake s are unique ecos ystems that once belonge d to a large peat . wetland system. They are concentratedОнлайн-запрос

  • The development of Waikato peat soils. CAB Direct

    The average C/N ratios of the peat samples ranged from 21 to 33, and the coefficient of N mineralization on incubation was only 0.3-0.4, being very much below values for representative mineral soils in New Zealand. Fertilizer trials showed that there was a good but short-lived response of grasses to 2-20 cwt./acre of NH4N03 or equivalent amounts of (NH4)2SO4 or NaN03, but heavy dressings of N...Онлайн-запрос

  • Vegetation recovery following fire in two Waikato

    Ordination techniques arranged the plots and species in a sequence from shrub-sedgeland (Whanga- marino), through Stratigraphic studies of Waikato peat bogs indicate a fire every one hundred to several hundred years in pre-human times, i.e., up to about 700 years ago (Newnham et al. 1995). Since then the frequency has increased dramatically owing to land clearance first by Polynesian andОнлайн-запрос

  • Getting there Lakes of the Waikato River catchment ROTOPIKO

    Waikato River catchment The Serpentine Lakes belong to a chain of more than 30 peat lakes scattered along the historic course of the Waikato River. These shallow, naturally tea-coloured lakes represent the largest collection of this wetland type in New Zealand. The Waikato peat lakes are ecologically, culturally and spiritually significant and highly valued as places for recreation, educationОнлайн-запрос

  • Vegetation and peat characteristics of restiad bogs on

    in relatively unmodified Waikato restiad bogs, Chatham Island peat under S. traversii has signifi-cantly higher total potassium, total nitrogen, avail-able phosphorus, bulk density, and von Post decomposition indices, and significantly lower pH. Sporadanthus traversii and Empodisma minus have similar ecological roles in restiad bog development, occupying a relatively wide nutrient range, andОнлайн-запрос

  • Restoring Wetlands Research Programme 4: July 2013 to June

    known from three isolated peat bogs in the Waikato, and four other wetlands following translocation or restoration. The distribution and abundance of H. flexilissima was assessed using a novel technique that involved counting and dissecting the Sporadanthus stems for the presence of larvae. Houdinia flexilissima appears to be able to survive wherever S. ferrugineus plants are present, and wasОнлайн-запрос

  • (PDF) Detection of thin tephra deposits in peat and

    The peat deposits are interspersed with 13 macroscopic airfall tephra layers of ash to lapilli grade, which range from c. 2 lo 200 mm in thickness (Table 1).Онлайн-запрос

  • The development of Waikato peat soils. CAB Direct

    The average C/N ratios of the peat samples ranged from 21 to 33, and the coefficient of N mineralization on incubation was only 0.3-0.4, being very much below values for representative mineral soils in New Zealand. Fertilizer trials showed that there was a good but short-lived response of grasses to 2-20 cwt./acre of NH4N03 or equivalent amounts of (NH4)2SO4 or NaN03, but heavy dressings of N...Онлайн-запрос

  • Aerial Surveying For Peat Subsidence Taking Flight

    Wednesday, 7 October 2020, 10:53 amPress Release: Waikato Regional Council Helicopter flights to capture information on future peat soil subsidence are due to take place over the next month as part of a long-term Waikato Regional Council programme.These helicopter flights represent the first round of region-wide peat subsidence monitoring, withОнлайн-запрос

  • Vegetation and peat characteristics of restiad bogs on

    Chatham peat systems are still relatively intact com-pared with the much-reduced Waikato peatlands, but share similar threats of fire, drainage, and stock damage. We therefore conducted a plot-based survey of bogs dominated by S. traversii, measuring both veg-etation and peat characteristics, to understand basic processes of peatlandОнлайн-запрос

  • Measuring peat moisture content using the dual-probe heat

    Department of Earth Sciences, University of Waikato, Private Bag 3105, Hamilton, New Zealand. ACorresponding author; email: [email protected] Abstract The dual-probe heat pulse (DPHP) technique for measuring soil volumetric moisture content (θ v) is evaluated for use in peat soils with very high organic matter contents. The method has aОнлайн-запрос

  • Getting there Lakes of the Waikato River catchment ROTOPIKO

    Waikato River catchment The Serpentine Lakes belong to a chain of more than 30 peat lakes scattered along the historic course of the Waikato River. These shallow, naturally tea-coloured lakes represent the largest collection of this wetland type in New Zealand. The Waikato peat lakes are ecologically, culturally and spiritually significant and highly valued as places for recreation, educationОнлайн-запрос

  • The development of peat land.

    On partly drained Waikato peat on which good grasses and clovers or Lotus grow naturally or have been sown, good pasture can be established and maintained by liming to pH 5.0-5.5 and broadcast application of P and K. Grazing must be controlled and a top dressing of 5 Ib./acre of CuSO4 applied annually.Онлайн-запрос

  • Fertiliser requirements for peat soils in the Waikato region

    In the Waikato, peat soils cover about 94 000 ha with 80% of the area now developed into agriculture and horticulture (Environment Waikato 1999). Developed peat soils are highly productive and can achieve annual herbage yields similar to mineral soils, although growth in late winter/early spring can be lower due to more severe N deficiency (Baars 1988). A wide range of horticultural crops areОнлайн-запрос

  • Restoring Wetlands Research Programme 4: July 2013 to June

    known from three isolated peat bogs in the Waikato, and four other wetlands following translocation or restoration. The distribution and abundance of H. flexilissima was assessed using a novel technique that involved counting and dissecting the Sporadanthus stems for the presence of larvae. Houdinia flexilissima appears to be able to survive wherever S. ferrugineus plants are present, and wasОнлайн-запрос

  • Waikato region teara.govt.nz

    Wetlands, peat lakes and peat bogs abound in the Waikato lowlands, particularly in the central Thames valley, north of Taupiri and south of Hamilton. Drainage works to create farmland have destroyed some wetlands and split others into fragments. However, in the early 2000s the Waikato region still contained around 30% of New Zealand’s wetlands, including the Whangamarino Wetland and KopuataiОнлайн-запрос

  • (PDF) Detection of thin tephra deposits in peat and

    The peat deposits are interspersed with 13 macroscopic airfall tephra layers of ash to lapilli grade, which range from c. 2 lo 200 mm in thickness (Table 1).