Land use, liming and the mobilization of potentially toxic metals

Goulding, Keith; Blake, L.

doi:10.1016/s0167-8809(97)00111-4

Cited by 61 publications

(33 citation statements)

References 14 publications

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“…Liming Application of chalk or limestone (CaCO 3 ), quicklime (CaO), or hydrated lime (Ca(OH) 2 ) to increase soil pH has been commonly used for centuries (Goulding and Blake 1998). Amendments containing Mg such as dolomitic limestone are often used to obtain an adequate Mg nutrition to crops.…”

Section: Field Applicationsmentioning

confidence: 99%

“…Amendments containing Mg such as dolomitic limestone are often used to obtain an adequate Mg nutrition to crops. Rothamsted Experimental Station (UK) has a set of long-term experiments (e.g., Park Grass Experiment) established in the mid-nineteenth century that are particularly useful in understanding the relationship between land use, acidification, lime use, and trace element mobilization (Goulding and Blake 1998). The fact that immobilization of low Cd contents by liming is sometimes ineffective was illustrated by increased Cd concentrations in potato tubers at three sites in South Australia (McLaughlin et al 2000).…”

Section: Field Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

Phytoremediation of contaminated soils and groundwater: lessons from the field

Vangronsveld¹,

Herzig²,

Weyens³

et al. 2009

Environ Sci Pollut Res

801

354

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It is clear that in spite of a growing public and commercial interest and the success of several pilot studies and field scale applications more fundamental research still is needed to better exploit the metabolic diversity of the plants themselves, but also to better understand the complex interactions between contaminants, soil, plant roots, and microorganisms (bacteria and mycorrhiza) in the rhizosphere. Further, more data are still needed to quantify the underlying economics, as a support for public acceptance and last but not least to convince policy makers and stakeholders (who are not very familiar with such techniques).

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Section: Field Applicationsmentioning

confidence: 99%

Section: Field Applicationsmentioning

confidence: 99%

Phytoremediation of contaminated soils and groundwater: lessons from the field

Vangronsveld¹,

Herzig²,

Weyens³

et al. 2009

Environ Sci Pollut Res

801

354

View full text Add to dashboard Cite

show abstract

“…Long-term application of ammonium-or urea-based N fertilizers in crop production can result in soil acidification and changes in soil chemical properties, which can reduce biodiversity, retard nutrient cycling, and release potential toxic metals into water and plants, leading to soil degradation, environmental pollution and reduced crop yield (Bolan et al, 1991;Bouman et al, 1995;Barak et al, 1997;Goulding and Blake, 1998;Malhi et al, 1998;Rasmussen et al, 1998). Liming will be needed to correct the problem, which will increase the economic cost of farming.…”

Section: Soil Acidificationmentioning

confidence: 99%

Long-term experiments for sustainable nutrient management in China. A review

Miao¹,

Stewart²,

Zhang³

2010

Agronomy Sust. Developm.

442

215

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-China is facing one of the largest challenges of this century to continue to increase annual cereal production to about 600 Mt by 2030 to ensure food security with shrinking cropland and limited resources, while maintaining or improving soil fertility, and protecting the environment. Rich experiences in integrated and efficient utilization of different strategies of crop rotation, intercropping, and all possible nutrient resources accumulated by Chinese farmers in traditional farming systems have been gradually abandoned and nutrient management shifted to over-reliance on synthetic fertilizers. China is now the world's largest producer, consumer and importer of chemical fertilizers. Overapplication of nitrogen (N) is common in intensive agricultural regions, and current N-uptake efficiency was reported to be only 28.3, 28.2 and 26.1% for rice, wheat and maize, respectively, and less than 20% in intensive agricultural regions and for fruit trees or vegetable crops. In addition to surface and groundwater pollution and greenhouse gas emissions, over-application of N fertilizers has caused significant soil acidification in major Chinese croplands, decreasing soil pH by 0.13 to 2.20. High yield as a top priority, small-scale farming, lack of temporal synchronization of nutrient supply and crop demand, lack of effective extension systems, and hand application of fertilizers by farmers are possible reasons leading to the over-application problems. There is little doubt that current nutrient management practices are not sustainable and more efficient management systems need to be developed. A review of long-term experiments conducted around the world indicated that chemical fertilizer alone is not enough to improve or maintain soil fertility at high levels and the soil acidification problem caused by overapplication of synthetic N fertilizers can be reduced if more fertilizer N is applied as NO − 3 relative to ammonium-or urea-based N fertilizers. Organic fertilizers can improve soil fertility and quality, but long-term application at high rates can also lead to more nitrate leaching, and accumulation of P, if not managed well. Well-managed combination of chemical and organic fertilizers can overcome the disadvantages of applying single source of fertilizers and sustainably achieve higher crop yields, improve soil fertility, alleviate soil acidification problems, and increase nutrient-use efficiency compared with only using chemical fertilizers. Crop yield can be increased through temporal diversity using crop rotation strategies compared with continuous cropping and legume-based cropping systems can reduce carbon and nitrogen losses. Crop yield responses to N fertilization can vary significantly from year to year due to variation in weather conditions and indigenous N supply, thus the commonly adopted prescriptive approach to N management needs to be replaced by a responsive in-season management approach based on diagnosis of crop growth, N status and demand. A crop sensor-based in-season site-specific N mana...

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“…Land use change can simultaneously cause both beneficial and harmful effects, because any change in land use has important consequences for many biological, chemical, and physical processes in soils and so, indirectly, the environment Blake 1998, 1993;Sverdrup et al 1995). Soil pollution (especially metal pollution) has become an important environmental issue in developed countries (e.g., the Netherlands, the United Kingdom, and Spain) due to changes in the land use pattern over the last few decades (Adriano 2001).…”

Section: Introductionmentioning

confidence: 99%

Effects of land use on concentrations of metals in surface soils and ecological risk around Guanting Reservoir, China

Luo

Lü

Giesy

et al. 2007

Environ Geochem Health

167

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It is accepted that the historical routine use of agrochemicals may have resulted in undesirable concentrations of metals in the environment. To investigate and assess the effects of land use on concentrations of heavy metals around the Guanting Reservoir in China, 52 surface soil samples (depth of 2-10 cm) were taken from areas where four types of land use were practiced (including arable land, woodland, bare land, orchard land). The metals and metalloids (As, Cr, Ni, Cu, Zn, Cd, and Pb) were analyzed using inductively coupled plasma-atomic emission spectroscopy (ICP-AES). Significant accumulation of As, Cd, and Cr was found in soils of arable land. Based on correlation and cluster analysis, it can be concluded that Cd and Zn originate mainly from phosphate fertilizer, Pb from the use of insecticides, fertilizers, and sewage sludge as well as air deposition, and Cu from copper-based fungicides, while As, Ni and Cr might come from parent soil material. According to an ecological risk analysis of metals based on the ecological index suggested by Hakanson, the four types of land can be ranked by severity of ecological risk as follows: arable land [ woodland [ bare land [ orchard land, with a high ecological risk of Cd for all four types. Management measures for land use planners for avoiding water, soil, and sediment pollution caused by metals around the Guanting Reservoir are presented.

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Land use, liming and the mobilization of potentially toxic metals

Cited by 61 publications

References 14 publications

Phytoremediation of contaminated soils and groundwater: lessons from the field

Phytoremediation of contaminated soils and groundwater: lessons from the field

Long-term experiments for sustainable nutrient management in China. A review

Effects of land use on concentrations of metals in surface soils and ecological risk around Guanting Reservoir, China

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