Changes in land use/land cover (LULC) can impact water yield (WY) by altering the structural layout and functions of terrestrial ecosystems. Therefore, to ensure regional economic ecosystem sustainability, it is critical investigate correlation between LULC change WY. The GMOP-PLUS-InVEST (GPI) coupling model based on gray multi-objective optimization model, patch-generating use simulation integrated valuation services trade-offs was used this study. Establishing three different scenarios:...

Effects of aging after pyrolysis were tested relative to the physicochemical characteristics peanut straw biochar. Biochar was prepared at temperatures 350 °C, 500 and 650 °C; then, it freeze-thawed dry-wet aged. The fresh aged biochar analyzed. results showed that temperature, ambient humidity affected With increase yield surface acidic functional groups decreased, whereas ash content, C pH, specific area, mesoporous volume increased. treatment increased content in reduced aromatic which...

(1) Background: Identifying ecological security patterns and restoring the Beijing-Hangzhou Grand Canal in Shandong is vital for future conservation maintaining ecosystem sustainability. (2) Methods: The study area was selected, InVEST3.9.0 model used to assess natural-environment services. An optimal evaluation approach based on Minimum Cumulative Resistance developed define pattern. (3) Results: There were 20 source areas lower east portions of area, mainly grasslands, forests, water...

A novel bentonite-biochar (APB) composite was prepared by incorporating bentonite (BE) with Alternanthera philoxeroides (AP) biochar for the adsorptive removal of Cd(II) from aqueous media. The APB and pristine (PB) AP were produced at 300 °C under a nitrogen environment. adsorption capabilities BE, PB, tested solution. results showed that pH substantially affected PB APB. capacity onto gradually increased as to 6.0, there no significant change in further 8.0. kinetic data fitted...

A reliable soil test is needed for estimating mercury (Hg) availability to crop plants. In this study, four extraction procedures including 0.1 M hydrochloric acid (HCl), 1 ammonium acetate (NH4OAc) (pH 7.0), 0.005 diethylenetriaminepentaacetic (DTPA), and calcium chloride (CaCl2) (pH5.0) were compared their adequacy in predicting Hg plants of a rice–cabbage–radish rotation system. The amounts extracted by each the increased with increasing equilibrium time. optimal time required was...

Abstract In this study, biochar was prepared from Alternanthera philoxeroides (AP) under O2-limited condition at 350 °C (LB) and 650 (HB) treated with aging by HNO3/H2SO4 oxidation. Structural changes of the after treatment treatment's effect on Pb(II) absorption were explored. The results showed that oxygen-containing functional groups, aromatic structure surface area increased treatment. However, integrity tubular broken into fragments. adsorption process in accordance pseudo-second-order...

A fast-growing alder species native to the eastern Himalayas, Nepalese (Alnus nepalensis), has recently received considerable attention in restoration of contaminated lands due its significant economic benefits and ecological functions. The bioaccumulation characteristics phytoremediation potential naturally regenerated were evaluated a lead-zinc spoil heap located Lancang county, Yunnan province, south-western China. Results showed that factors (BFs) A. nepalensis for Zn Pb always >1...

Biochar has been recognized as an effective heavy metal adsorbent; however, there is limited knowledge on the effect of biochar aging its adsorption behavior.To study Cu(II) behavior different types, surface properties and characteristics peanut (PB), cotton (CB) their corresponding dry-wet (PDB, CDB) were analyzed.After process, capacity cotton-derived was increased by 292%, whereas peanut-derived decreased 45.56%.At same time, O/C ratio two types increased, increase for CB more...

Mercury (Hg) has received considerable attention because of its association with various human health problems. Adsorption-desorption behavior Hg at contaminated levels in two paddy soils was investigated. The representative for rice production China, locally referred to as a yellowish red soil (YRS) and silty loam (SLS) classified Gleyi-Stagnic Anthrosols FAO/UNESCO nomenclature, were respectively collected from Jiaxin County Xiasha District Hangzhou City, Zhejiang Province. YRS adsorbed...

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Surface soil samples from 12 sampling sites around coal gangue piles of Baodian mine area in Shandong Province, China were collected and analyzed. The results showed that the average concentrations Cu, Cd, Pb Zn up to 30.91, 1.97, 37.78 101.81 mg/kg, respectively, which are much higher than their natural background values province. Soil Liguanqiao village displayed metal Baojiachang piles. contamination index (PI) accordance with province indicated heavy level was Cd>;Zn>;Pb>;Cu, Zn, Cu...

The current study aimed to optimize Cd(II) removal from aqueous solutions by a composite adsorbent (BCB) prepared Alternanthera philoxeroides (AP) biochar (BC) and bentonite (BE) using response surface methodology (RSM). results showed that the loading of BE did not significantly change microstructure BC but increased number functional groups. X-ray diffraction (XRD) analysis precipitation was primary mechanism adsorption. adsorption behavior for fitted Freundlich model. pH, dosage, initial...

Validation of the specificity ICP-MS methods by ICH Q2 (R2) through spiking experiments cannot characterize multi-atomic interference complex high matrix samples, possibly affecting accuracy method and reliability results. In this study, we highlight issue investigating elemental impurities in lanthanum carbonate raw materials use isotope ratio analysis to overcome limitation establishing an accurate for 24 (listed Q3D). An Agilent 7900 was used with automatic sampler sample determination He...

Biochar aging has attracted increasing attention for heavy metals removal from soils.Equilibrium experiment and soil column leaching were conducted to investigate the effect of wheatstraw-derived biochar (BWS) chicken-manure-derived (BCM) at 650°C on Cd(II) adsorption in tea garden soils, feasibility using remediate contaminated soils was assessed.The results showed that capacity increased with application biochar.Compared no application, by 10%-70% 17.5%-95% amended BWS BCM 0.1, 0.5, 1 WT%,...