Impacts of agricultural land management on soil quality after 24 years: a case study in Zhangjiagang County, China

Qi, YB; Huang, Biao; Darilek, JL

doi:10.1080/00288233.2011.604678

Cited by 9 publications

(3 citation statements)

References 41 publications

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“…1 Careful consideration is necessary to monitor anthropogenic impacts on soil quality and to closely monitor long-term soil and environmental quality indicators. 8 …”

Section: Introductionmentioning

confidence: 99%

Review of Heavy Metals Pollution in China in Agricultural and Urban Soils

Shifaw

2018

Journal of Health and Pollution

103

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Background.The concentrations of heavy metals in soil and potential risks to the environment and public health are receiving increased attention in China.Objectives.The objective of this paper is to review and analyze heavy metals soil contamination in urban and agricultural areas and on a national scale in China.Methods.Initially, data on soil heavy metals concentration levels were gathered from previous studies and narratively analyzed. A further statistical analysis was performed using the geo-accumulation index (Igeo), Nemerow integrated pollution index (NIPI), mean, standard deviation (SD), skewness and kurtosis. Pollution levels were calculated and tabulated to illustrate overall spatial variations. In addition, pollution sources, remedial measures and impact of soil contamination as well as limitations are addressed.Results.The concentration level of heavy metals was above the natural background level in most areas of China. The problem was more prevalent in urban soils than agricultural soils. At the national level, the soil in most of the southern provinces and Beijing were heavily polluted. Even though the pollution condition based on Igeo was promising, the Nemerow integrated pollution level was the most worrisome. The soils in about 53% of the provinces were moderately to heavily polluted (NIPI>2). The effects were noticed in terms of both public and ecological health risks. The major sources were waste gas, wastewater, and hazardous residuals from factories and agricultural inputs such as pesticides. Efforts have been made to reduce the concentrations and health risks of heavy metals, including policy interventions, controlling contamination sources, reducing the phytoavailability of heavy metals, selecting and rearing of grain cultivars with low risk of contamination, paddy water and fertilizer management, land use changes, phytoremediation and engineering techniques.Conclusions. China is experiencing rapid economic and technological advancements. This increases the risk of heavy metals contamination of soil. If serious attention is not paid to this problem, soil toxicity and biological accumulation will continue to threaten the sustainability of China's development.Competing Interests.The authors declare no competing financial interests

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“…1 Careful consideration is necessary to monitor anthropogenic impacts on soil quality and to closely monitor long-term soil and environmental quality indicators. 8 …”

Section: Introductionmentioning

confidence: 99%

Review of Heavy Metals Pollution in China in Agricultural and Urban Soils

Shifaw

2018

Journal of Health and Pollution

103

View full text Add to dashboard Cite

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“…the higher porosity and better soil moisture conservation in ST favoured the more robust root growth and nutrient uptake resulted in increasing grain yield. These results agree Huang et al (2012) stating that minimum tillage (MT) unpadded condition provides more favourable soil physical environment for better crop growth than CT. Pittelkow et al (2015) about Qi et al (2011) also reported that higher and more stable crop yields in MT than CT. In CT, heavy grinding of the surface soil by 2 WT forms hardpan by exerting massive pressure.…”

Section: Effect On the Yield Of Ricementioning

confidence: 88%

Influence of Unpadded Transplanting on Rice (<em>Oryza sativa</em> L.) Retained Reside of Previous Mustard

Hossain¹,

Begum²,

Rahman³

et al. 2020

Preprint

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On-farm research was conducted at Gouripur sub-district under Mymensingh district of Bangladesh during boro (mid November-June) season in 2013-14 and 2014-15 to evaluate the performance of unpadded rice cultivation with crop residue retention. The rice var. BRRI dhan28 was transplanted by two tillage practices viz., puddled conventional tillage (CT) and non-puddled strip tillage (ST) and two levels of mustard residues, i.e., no residue (R0) and 50% residue (R50). The experiment had designed in a randomized complete block design with four replications. There were no significant yield differences between tillage practices and residue levels in 2013-14. But in the following year, ST yielded higher grains (5.72 t ha-1), which was about 9.36 % higher compared to CT. The higher grain yield in ST, leading to 22.23% higher BCR compared to CT. Retention of 50% residue increased by 3.15 % yield compared to no-residue, which contributed to 10.58 % higher benefit-cost ratio (BCR). The ST combine with 50 % residue retention yielded the highest grain yield (5.81 t ha-1) which credited to obtain the highest BCR (1.06).

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“…These benefits however were evident in the second year but not in first year suggesting that they require at least a year to develop. These results agree Huang et al (2012) who stated that minimum tillage (MT) non-puddled condition provides more favourable soil physical environment for better crop growth than CT. Pittelkow et al (2015) and Qi et al (2011) also reported that higher and more stable crop yields in MT than CT. In CT, heavy smearing of the sub-surface soil by rotary tillage forms a hardpan.…”

Section: Effect On the Yield Of Ricementioning

confidence: 88%

Influence of non-puddled transplanting and residues of previous mustard on rice (<em>Oryza sativa</em> L.)

Hossain¹,

Begum²,

Rahman³

et al. 2020

Preprint

View full text Add to dashboard Cite

On-farm research was conducted at Gouripur sub-district under Mymensingh district of Bangladesh during the boro (mid November-June) season in 2013-14 and 2014-15 to evaluate the performance of non-puddled rice cultivation with and without crop residue retention. The rice var. BRRI dhan28 was transplanted by two tillage practices viz., puddled conventional tillage (CT) and non-puddled strip tillage (ST) and at two levels of mustard residues, i.e., no residue (R0) and 50% residue (R50). The experiment was designed in a randomized complete block design with four replications. There were no significant yield differences between tillage practices and residue levels in 2013-14. But in the following year, ST yielded 9% more grain compared to CT leading to 22% higher BCR. Retention of 50% residue increased yield by 3% compared to no-residue, which contributed to 10% higher benefit-cost ratio (BCR). The ST combined with 50% residue retention yielded the highest grain yield (5.81 t ha-1) which contributed to produce the highest BCR (1.06).

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Impacts of agricultural land management on soil quality after 24 years: a case study in Zhangjiagang County, China

Cited by 9 publications

References 41 publications

Review of Heavy Metals Pollution in China in Agricultural and Urban Soils

Review of Heavy Metals Pollution in China in Agricultural and Urban Soils

Influence of Unpadded Transplanting on Rice (<em>Oryza sativa</em> L.) Retained Reside of Previous Mustard

Influence of non-puddled transplanting and residues of previous mustard on rice (<em>Oryza sativa</em> L.)

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