【作者】 王红；

【导师】 刘方；

【作者基本信息】 贵州大学 ， 土壤学， 2006， 硕士

【摘要】 为了充分利用固体废弃物减轻水环境的恶化，本研究将粉煤灰、黄壤和磷石膏按照不同比例混合并进行盆栽试验，以选择粉煤灰草坪基质的最佳配比以及最佳草种，并进行草坪草栽培环境对贵阳市南明河受污染水体的净化效果研究。 将黑麦草、高羊茅、紫羊茅、剪股颖、早熟禾、马蹄金、狗牙根7种草坪草进行不同粉煤灰基质的盆栽试验，并进行自来水浇灌和受污染的南明河河水浇灌的对比试验。结果发现：南明河浇灌的草坪草生长状况明显比自来水浇灌的要好，由此说明用南明河河水浇灌相当于为草坪草生长提供了肥源。同时通过层次聚类分析，并结合实际情况，选出了在各基质上生长较适合的三种草，分别为紫羊茅、高羊茅、黑麦草。 将粉煤灰、土壤及磷石膏按照不同比例混合进行紫羊茅、高羊茅、黑麦草的盆栽试验，分析不同配比基质对草坪草生长以及土壤理化性质的影响。研究草坪栽培环境的植物效应和肥力效应，探讨粉煤灰草坪基质利用的可行性。结果发现：粉煤灰施加到土壤后，具有明显的改善土壤质地、增加土壤常量养分及部分必需微量元素（K，Ca，Mn，Cu，Zn等）含量的作用，这一效果随施灰量的增加而增加；通过对不同基质上生长的黑麦草和高羊茅进行叶绿素（a+b）含量和根系活力的测定发现，粉煤灰和土壤比例为7∶3的基质配比较为适应草坪草的生长。 将粉煤灰、土壤及磷石膏按照不同比例混合，进行南明河污水浇灌黑麦草的盆栽试验，分析不同配比基质对南明河污水的净化效果。试验结果表明：草坪草基质P，N，Cu，Zn等含量随磷石膏加入量的增加而增加，P的增加效果最为明显；通过对黑麦草苗期和生长旺盛期对污水净化率的聚类分析得出：土壤和粉煤灰比例为5.5∶4.5，磷石膏含量为土灰基质重量的1.6～2.4％时，黑麦草生长最好，对南明河受污染水体的净化效果最佳，其中，对TN的净化率为78.5％，对TP为75.5％，CODmn为75.1％，BOD₅为76.2％。更多还原

【Abstract】 As the lawn industry in our country developed fast in recent years, the large-scale lawn production has brought the serious malady that current topsoil has been destructively destroyed by the production of wrapping sward. Based on the fact that studied the lawn pyrification of Nan Ming river.This study mainly reported the feasibility of fly ash used in turf industry, its environmental efects and the assessment of turf quality. Pot experiments was done that fly ash mixed with soil according to diferent ratios to establish turfgrass to find the best ratios of fly ash and soil in the medium. Then the optimal fertilizing environments were researched and the influences of the turf medium on soil environment and underground water quality were appraised. Finally, a comprehensive assessment system of turf quality was proposed. Soil and fly ash and Lolium multiflorum L.cv, Barmultra was planted in the medium. The results indicated mixing fly ash with soil could enhance soil properties, such as contents of clay particles, available P, total P and part of metal elements, i.e.,P, N, Zn, Cu. These efects had great linear relation with the application rates of fly ash. At the same time, with the enhancement of rates of fly ash, the contents of Pb and Cd were increasing linearly. But contents of metallic elements, i.e., Zn, Cu, Pb were below the Grade One of Quality Standards of Soil Environment (QSSE). According to the Grade Three of cadmium element, the usage of fly ash should be controlled below 72. 5 percent. Growth and upgrounding yields of turfgrass were best in the treatment of S70F30, so application of fly ash at 30 percent rate should be the optional medium for sod.更多还原