Sobol′’s sensitivity analysis for a distributed hydrological model of Yichun River Basin, China

Copyright © 2013 Elsevier. NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Hydrology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Hydrology Vol. 480 (2013), DOI: 10.1016/j.jhydrol.2012.12.005This paper aims to provide an enhanced understanding of the parameter sensitivities of the Soil and Water Assessment Tool (SWAT) using a variance-based global sensitivity analysis, i.e., Sobol′’s method. The Yichun River Basin, China, is used as a case study, and the sensitivity of the SWAT parameters is analyzed under typical dry, normal and wet years, respectively. To reduce the number of model parameters, some spatial model parameters are grouped in terms of data availability and multipliers are then applied to parameter groups, reflecting spatial variation in the distributed SWAT model. The SWAT model performance is represented using two statistical metrics – Root Mean Square Error (RMSE) and Nash–Sutcliffe Efficiency (NSE) and two hydrological metrics – RunOff Coefficient Error (ROCE) and Slope of the Flow Duration Curve Error (SFDCE). The analysis reveals the individual effects of each parameter and its interactions with other parameters. Parameter interactions contribute to a significant portion of the variation in all metrics considered under moderate and wet years. In particular, the variation in the two hydrological metrics is dominated by the interactions, illustrating the necessity of choosing a global sensitivity analysis method that is able to consider interactions in the SWAT model identification process. In the dry year, however, the individual effects control the variation in the other three metrics except SFDCE. Further, the two statistical metrics fail to identify the SWAT parameters that control the flashiness (i.e., variability of mid-flows) and overall water balance. Overall, the results obtained from the global sensitivity analysis provide an in-depth understanding of the underlying hydrological processes under different metrics and climatic conditions in the case study catchment.National Natural Science Foundation of Chin

Survey Based Diversity of Mango Insect Pests at Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh, India

The only purpose of conducting this research is to know the diversity of insects. This research is completely field based, which was selected at different twelve locations of Jawaharlal Nehru Agricultural University, Jabalpur, Madhya Pradesh campus. In this research, 38 insect pests with different species were recorded whose nature of causing harm has been told. The principle insect pests of mango are hopper, mealy bug, midge, fruit fly, bark eating caterpillar, shoot borer, leaf webber and stone weevil

Study the Seasonal Incidence of Major Sucking Insect-Pests of Sesame (Sesamum indicum, L.) Crop

The present investigation was carried out at the experimental farm of Project Coordinating Unit Sesame and Niger (ICAR), College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (Madhya Pradesh) during summer season, 2022. The results revealed that the peak period for the incidence of whitefly and mirid bug were recorded in 19th standard week while peak period for the incidence of leafhopper was recorded in 20 standard week. The 40°C maximum and 24°C minimum temperature and 59% morning and 30% evening relative humidity were found congenial for the multiplication of whitefly and mirid bug while 41.70°C maximum and 27.60°C minimum temperature and 52% morning and 28% evening relative humidity were found congenial for the multiplication of leafhopper

Study the Biology of Common Castor Butterfly, Ariadne merione merione (Cramer) (Nymphalidae: Lepidoptera)

A laboratory experiment was conducted at the PC Unit Sesame & Niger, Department of Entomology, JNKVV, Jabalpur on biology of spiny castor caterpillar, Ariadne merione merione (Cramer) on castor. Considerable variation in larval period on castor plants was observed, with the shortest of 27.41(max.) and 25.80 (min.) days being when reared on castor leaves. Generally, females length longer than males on all the castor plants. The average developmental period of 1st, 2nd, 3rd, 4th and 5th larvae were 70.92±4.89, 109.22±1.81, 134.37±1.87, 147.87±4.12 and 176.82±5.67 hours, respectively. The pupa length and width ranged from 18.79±0.74 mm and 5.62±0.11 mm, respectively. The periods of pre-oviposition, oviposition and post-oviposition in hours sequencely, 59.62±6.17, 121.42±2.42 and 61.69±3.20, respectively

Role of Intravitreal Antivascular Endothelial Growth Factor Injections for Choroidal Neovascularization due to Choroidal Osteoma

We treated 26 eyes of 25 young patients having a mean age of 30 years with intravitreal vascular endothelial growth factor (VEGF) inhibitor for choroidal new vessel (CNV) formation overlying choroidal osteoma over a mean follow-up of 26 months. Mean number of injections was 2.4 at 6 months, 3.2 at 12 months, and 5.5 at 24 months. CNV was subfoveal in 14 eyes, juxtafoveal in 5, extrafoveal in 5, and peripapillary in 2. By paired comparison, mean decrease from baseline was 119.7 microns at 6 months (n = 15; P = 0.001), 105.3 microns at 1 year (n = 10; P = 0.03), and 157.6 microns at 2 years (n = 7; P = 0.08). BCVA improved by 3.3 lines at 6 months after therapy (n = 26; P < 0.001), 2.8 lines (n = 20; P = 0.01) at 1 year, and 3.1 lines (n = 13; P = 0.049) at 2 years. We conclude that intravitreal anti-VEGF injections improve vision in majority of eyes with CNV from choroidal osteoma