The corps’ growth with different water-saving irrigation conditions in new reclamation areas along the coast of Jiangsu

Jun Wang,Miao Hou,Tongshun Wang,Xing Yang,Xinyuan Zhang,Songgan Weng,C.-H Weng,R Weerasinghe,J Wu

doi:10.1051/e3sconf/201911803044

Jun Wang, Miao Hou + Show 7 more

Open Access

https://doi.org/10.1051/e3sconf/201911803044

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Abstract

This study performed a quantitative evaluation of the impact of the corps’ growth with different water-saving irrigation conditions in new reclamation areas along the coast of Jiangsu. In this work, the yield and the amount of irrigation water of corps’ (watermelon, green pepper, and rice) with different water-saving irrigation modes were investigated. The results indicate that the drip-irrigation and micro-spray irrigation can observably reduce the amount of irrigation-water. With respect to normal irrigation, the rate of water-saving is 39.2%. At the same time, there’s been some improvement in the yield of corps. Water-saving irrigation can been accepted as an important means for alleviating the shortage of fresh water resources in the new reclamation.

Highlights

Water scarcity is increasing worldwide, especially in water-stressed regions, and can be attributed to a combination of factors, such as climate change, population growth, expanding irrigated agriculture, industrial growth and economic development[1]
In the Eastern China Plain, climate change is causing a reduction in regional water resources, which manifested by increasing temperature, erosion of sea water and persistently high evaporation[2]
In the coastal areas of Jiangsu, the water-saving irrigation technique is essential to ensure the normal development of agriculture in the new reclamation area, and to reduce the threats of regional water security and ecosystems[6,7]

Summary

Introduction

Water scarcity is increasing worldwide, especially in water-stressed regions, and can be attributed to a combination of factors, such as climate change, population growth, expanding irrigated agriculture, industrial growth and economic development[1]. In the Eastern China Plain (especially the coastal areas of Jiangsu), climate change is causing a reduction in regional water resources, which manifested by increasing temperature, erosion of sea water and persistently high evaporation[2]. With the increasing competition for water from non-agricultural sectors, such as urbanization, tourism industry and ecosystem services, it is essential to reduce the use of irrigation water in agricultural production in water-stressed regions. In the coastal areas of Jiangsu, the water-saving irrigation technique is essential to ensure the normal development of agriculture in the new reclamation area, and to reduce the threats of regional water security and ecosystems[6,7]

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Conclusion