Understanding the rapid increase in drought stress and its connections with climate desertification since the early 1990s over the Brazilian semi-arid region

Barbosa, H.A.

doi:10.1016/j.jaridenv.2024.105142

Cited by 8 publications

(1 citation statement)

References 82 publications

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“…Drought is widely recognized as one of the most prevalent and devastating extreme weather phenomena. Prolonged droughts have resulted in soil erosion, land degradation, desertification, and other issues that have significantly impacted regional ecological development and sustainable social-economic progress. − Currently, arid and semiarid regions account for 47% of China’s total land area . The agricultural production in arid and semiarid regions often faces challenges due to water scarcity and low efficiency in water and fertilizer utilization. − In the past two decades, China has experienced water scarcity, resulting in an annual loss of over 27 million tons of grain production .…”

Section: Introductionmentioning

confidence: 99%

Rational Design of a Multifunctional Hydrogel Trap for Water and Fertilizer Capture: A Review

Wu,

Sheng,

et al. 2024

J. Agric. Food Chem.

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Water scarcity and land infertility pose significant challenges to agricultural development, particularly in arid and semiarid regions. Improving soil-water-retention capacity and fertilizer utilization efficiency through the application of soil additives has become a pivotal approach in agricultural practices. Hydrogels exhibit exceptional water absorption and fertilizer retention capabilities, making them extensively utilized in the fields of agriculture, forestry, and desert control. Currently, most reviews primarily focus on the raw materials, classification, synthesis methods, and application prospects of hydrogels, with limited attention given to strategies for enhancing water-retention performance, mechanisms underlying fertilizer absorption, and environmental risks. This review covers the commonly used cross-linking methods in hydrogel synthesis and the structure−activity relationship between hydrogels and water as well as fertilizer. Additionally, a thorough analysis of the ecological benefits and risks associated with hydrogels is presented. Finally, future prospects and challenges are delineated from the perspectives of material design and engineering applications.

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