agronomy Article An Assessment of the Spatial and Temporal Distribution of Soil Salinity in Combination with Field and Satellite Data: A Case Study in Sujawal District Kashif Ali Solangi 1, Altaf Ali Siyal 2, Yanyou Wu 1,*, Bilawal Abbasi 3 , Farheen Solangi 3, Imran Ali Lakhiar 1 and Guiyao Zhou 4 1 Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Institute of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;
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[email protected]; Tel.: +86-0851-8439-1746 Received: 1 November 2019; Accepted: 6 December 2019; Published: 10 December 2019 Abstract: Soil salinization is a serious environmental issue that significantly influences crop yield and soil fertility, especially in coastal areas. Numerous studies have been conducted on the salinity status in Pakistan. Information about the geospatial and temporal distribution of salinity in the Sujawal district is still lacking. The present study examines the soil salinity status and the impact of seawater intrusion in the entire district from 1990 to 2017 using field and remote sensing (RS) data.