Scholarlink

<p>The rapid expansion of aquaculture in Bangladesh, particularly in the coastal regions of Paikgachha Upazila of Khulna District, underscores the critical role of marsh soil health in sustaining productivity and ecological balance. This study comprehensively assesses the physicochemical and microbial biomass parameters of marsh soil in 15 beels (wetlands) to evaluate their nutritional status and soil quality for aquaculture, with a focus on prawn farming. Marsh soil samples were analyzed for pH, electrical conductivity (EC), total dissolved solids (TDS), salinity, organic carbon (OC), organic matter (OM), moisture content, microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), nitrogen (N), phosphorus (P), potassium (K), and sulfur (S) using standard protocol. Results revealed significant variability across beels, with pH ranging from 4.63 to 6.85, EC from 0.48 to 1.36 dS/m, and salinity from 0.29 to 1.50 ppt, indicating low to moderate salinity stress. Nutrient levels, including OC (0.59–1.56%), N (0.027–0.063%), and P (0.016–0.077%), reflected moderate enrichment, while MBC (0.038–0.093&#xa0;mg/kg) and MBN (0.0013–0.0097&#xa0;mg/kg) indicated varying microbial activity. Principal component analysis (PCA) identified OC, N, P, K, and MBN as key drivers of marsh soils’ fertility, while EC, TDS, and salinity were linked to salt stress. The soil quality index (SQI) ranged from 0.39 to 0.75, classifying most beels under study as having moderate to good soil quality, with some beels exhibiting superior health. Hierarchical clustering and Pearson’s correlation analyses highlighted negative correlations between salinity and nutrient parameters. These findings provide a scientific foundation for understanding marsh soil health in coastal aquaculture, supporting the development of evidence-based management strategies to enhance productivity and sustainability.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comprehensive assessment of marsh soil health index in beel aquaculture systems of coastal Bangladesh

  • 期刊论文

  • 发表日期：

    2025年6月23日

查看全文
  • Fariha Farzana,
  • Tusar Kanti Roy,
  • Mir Mohammad Ali,
  • Sk Arafat Hossain,
  • Rituparna Ghosh,
  • Tatia Biswas,
  • Mahjabin Mazrin,
  • Jayosri Roy Jayoti,
  • Bikash Chandra Sarker,
  • Abu Shamim Khan,
  • Md. Tanvir Anjum,
  • Zulhilmi Ismail,
  • Md.Saiful Islam,
  • Taher Sahlabji,
  • Abubakr M. Idris

摘要

The rapid expansion of aquaculture in Bangladesh, particularly in the coastal regions of Paikgachha Upazila of Khulna District, underscores the critical role of marsh soil health in sustaining productivity and ecological balance. This study comprehensively assesses the physicochemical and microbial biomass parameters of marsh soil in 15 beels (wetlands) to evaluate their nutritional status and soil quality for aquaculture, with a focus on prawn farming. Marsh soil samples were analyzed for pH, electrical conductivity (EC), total dissolved solids (TDS), salinity, organic carbon (OC), organic matter (OM), moisture content, microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), nitrogen (N), phosphorus (P), potassium (K), and sulfur (S) using standard protocol. Results revealed significant variability across beels, with pH ranging from 4.63 to 6.85, EC from 0.48 to 1.36 dS/m, and salinity from 0.29 to 1.50 ppt, indicating low to moderate salinity stress. Nutrient levels, including OC (0.59–1.56%), N (0.027–0.063%), and P (0.016–0.077%), reflected moderate enrichment, while MBC (0.038–0.093 mg/kg) and MBN (0.0013–0.0097 mg/kg) indicated varying microbial activity. Principal component analysis (PCA) identified OC, N, P, K, and MBN as key drivers of marsh soils’ fertility, while EC, TDS, and salinity were linked to salt stress. The soil quality index (SQI) ranged from 0.39 to 0.75, classifying most beels under study as having moderate to good soil quality, with some beels exhibiting superior health. Hierarchical clustering and Pearson’s correlation analyses highlighted negative correlations between salinity and nutrient parameters. These findings provide a scientific foundation for understanding marsh soil health in coastal aquaculture, supporting the development of evidence-based management strategies to enhance productivity and sustainability.