soil quality improvement
Recently Published Documents


TOTAL DOCUMENTS

46
(FIVE YEARS 21)

H-INDEX

10
(FIVE YEARS 2)

PLoS ONE ◽  
2022 ◽  
Vol 17 (1) ◽  
pp. e0261638
Author(s):  
Yu Zhou ◽  
Yingcheng Fan ◽  
Guang Lu ◽  
Anyong Zhang ◽  
Ting Zhao ◽  
...  

Soil quality is the basis for the development of sustainable agriculture and may be used for evaluating the sustainability of soil management practices. Soil quality status and integrated soil quality index (SQI) in sampled 97 farmlands distributed in 7 barley agro-ecological areas of China were analyzed by using 13 soil chemical parameters. The results showed six principal components totally explained 72% variability for the 13 parameters and identified 9 parameters (includes pH, NH4+-N, NO3--N, available P, available K, exchangeable Mg, DTPA-Fe, DTPA-Cu and Cl-) with high factor loading values as the minimum data set (MDS) for assessing soil quality. Average soil quality of all farmlands is moderate (SQI = 0.62). The SQI of barley farmlands in 7 agro-ecological areas showed the following order: Inner Mongolia Plateau (0.75 ± 0.02) > Yunnan-Kweichow Plateau (0.72 ± 0.06) > Qinghai-Tibet Plateau (0.63 ± 0.08) > Yangtze Plain (0.62 ± 0.10) > Huanghuai Region (0.58 ± 0.09) > Northeast China Plain (0.56 ± 0.07) > Xinjiang Province (0.54 ± 0.07). Total 29 out of 97 farmlands in 7 areas have low SQI level (< 0.55). Hence, these farmlands require urgent attention for soil quality improvement through modification of the soil parameters in the MDS.


CIVED ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 94
Author(s):  
Amelia Oktavia ◽  
Idharmahadi Adha ◽  
Setyanto Setyanto

Various methods of soil stabilizations in Indonesia are more increasingly used for soil quality improvement, one of the methods is using chemically additive materials with ISS 2500 (Ionic Soil Stabilizer). This chemical solution is able to cover soil particles through electro-chemical reactions, so that the water content is separated and cohesion among soil particles is strengthened. However, unstable weather and temperature changes (durability) in forms of rainfall and heat influence and cause soil defects especially in road construction. In this reseach, the tested soil was clay with low plasticity from Karang Anyar region in Lampung Selatan regency, and mixed with 0.9 ml of ISS 2500 solution content the ISS optimum content. To enable reactions between soil and ISS 2500, the mixed soil was treated in 18 days with durability treatment and cycles addition; 0,2,4, and 6 cycles. The laboratory results indicated that CBR test in cycle 0, 2, 4, and 6 obtained 8%, 7.6%, 5.7%, and 5.1% respectively.  The CBR value of the mix decreased regularly along with given amounts of additional cycles. However, the overall CBR value of the stabilization of low plasticity clay with an ISS of 2500 (Ionic Soil Stabilizer) can meet the requirements of Bina Marga as subgrade, because the CBR value obtained is greater than 5% even though it is given cycle treatment. The ISS 2500 material can be used as an alternative stabilization material for the improvement of the subgrade.


2021 ◽  
Vol 13 (12) ◽  
pp. 6555
Author(s):  
Jesús D. Peco ◽  
Pablo Higueras ◽  
Juan A. Campos ◽  
José M. Esbrí ◽  
Marta M. Moreno ◽  
...  

Abandoned mine lands (AMLs), which are considered some of the most dangerous anthropogenic activities in the world, are a source of hazards relating to potentially toxic elements (PTEs). Traditional reclamation techniques, which are expensive, time-consuming and not well accepted by the general public, cannot be used on a large scale. However, plant-based techniques have gained acceptance as an environmentally friendly alternative over the last 20 years. Plants can be used in AMLs for PTE phytoextraction, phytostabilization, and phytovolatilization. We reviewed these phytoremediation techniques, paying particular attention to the selection of appropriate plants in each case. In order to assess the suitability of plants for phytoremediation purposes, the accumulation capacity and tolerance mechanisms of PTEs was described. We also compiled a collection of interesting actual examples of AML phytoremediation. On-site studies have shown positive results in terms of soil quality improvement, reduced PTE bioavailability, and increased biodiversity. However, phytoremediation strategies need to better characterize potential plant candidates in order to improve PTE extraction and to reduce the negative impact on AMLs.


Author(s):  
G. Morianou ◽  
N. N. Kourgialas ◽  
V. Pisinaras ◽  
G. Psarras ◽  
G. Arambatzis

Abstract The aim of this study is the assessment of desertification risk in a typical Mediterranean island, in the frame of climate change and the application of good agricultural practices (GAPs). Based on the MEDALUS Environmentally Sensitive Area Index (ESAI) approach, the sensitivity in desertification is estimated by employing 15 quantitative parameters divided in four main quality indices: climate, vegetation, soil and management quality. The methodology applied for a baseline scenario (current conditions), two future climate change scenarios (RCP 4.5 and RCP 8.5) and a soil quality improvement scenario. According to the results, more than 13% of the island's area is characterized as critically sensitive to desertification in the current conditions. This percentage seems to be increased in the future under both the RCP 4.5 and the RCP 8.5 climate scenarios, where the critical areas will rise above to 15%. By applying, simultaneously with the climate change scenarios, the soil quality improvement scenario, a slight mitigation of desertification risk in the future could be achieved. The methodology developed in this study may be used to assess desertification process under various climate, soil and land use management scenarios in regions of the Mediterranean Sea.


Author(s):  
Jnana Bharati Palai

To fulfill the demand of increased population it is very essential to enhance crop productivity with precise inputs. Non-judicious application of inorganic fertilizers and other agrochemicals is degrading soil health, creating environmental pollution and also contributing to climate change. Nowadays, people became more aware towards health risks and demand for quality foods with less chemical residues is increasing as there is a progression of demand for organic products. But it is very difficult to produce adequate quantity of organic foods for the raised population in the developing countries as per standard organic practices. That’s why judicious use of inorganic fertilizers, organic manures and biofertilizers is required to supply nutrients to crops. Plant growth promoting rhizobacteria (PGPR), such as Rhizobium inoculation in groundnut (a major oilseed crop) can boost crop growth and enhance yield in a sustainable manner. Further, Rhizobium has multifaceted advantages in crop nutrient uptake and soil quality improvement. The article described the role of PGPR as well as Rhizobium in growth and productivity of groundnut towards production sustainability.


2020 ◽  
Vol 43 (4) ◽  
pp. 1037-1045
Author(s):  
Thaise de O. Bahia ◽  
Hernani A. Almeida ◽  
Milton Barbosa ◽  
Daniel Negreiros ◽  
Mauricio Quesada ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document