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1)  soil improvement
改土
1.
The water rention property and soil improvement effects of stands were studied.
在闽南沿海贫瘠丘陵山地开展不同类型林分造林试验,研究其持水性和改土能力。
2)  land reform
土改
1.
The land reform in the mountainous areas could not be carried out smoothly without successful mass mobilization in the early days of New China.
建国初期山区土改的顺利进行,离不开成功的群众动员。
2.
Comparing of the reasons of Kuomingtang s failure of land reform in the Mainland and success in Taiwan Failure of the land reform in the mainland and success in Taiwan by the Kuomintang (KMT) can be attributed to difference in resolution,cohesion and resistance.
国民党在大陆土改失败的原因和在台湾土改成功的原因可归于决心大小、凝聚力强弱、阻力大小不同。
3.
The industrial and commercial problem was an important one that arose in the land reform in southern Jiangsu.
工商业问题是苏南土改中遇到的一个重要问题。
3)  soil improvement
土壤改良
1.
Feasibility studies on coal-fly-ash application in refuse dump of coal mine for soil improvement;
用粉煤灰对煤矿排土场土壤改良可行性研究
2.
Application of attapulgite in soil improvement and new type fertilizer development;
凹凸棒土在土壤改良和新型肥料开发上的应用
3.
The technical measures of soil improvement in Longchi Ponkan orchard of Jinping county;
锦屏县龙池片区椪柑果园土壤改良技术措施
4)  modified clay
改性粘土
1.
Application of modified clay reinforcing agent in shoe rubber mix;
改性粘土的偶联效果检测及其作为鞋用混炼胶增强剂的应用
2.
Treatment of high fluorine contained groundwater by modified clay as defluoridation reagent
改性粘土除氟剂处理高氟地下水研究
3.
The ultrasonic/modified clay process was used to remove blue algae from the artificial waters of the ancient Yancheng city site located in Changzhou City.
采用超声波/改性粘土工艺去除常州市淹城古遗迹人工水体中的蓝藻。
5)  modified soil
改性土
1.
Adsorption of o-dihydroxybenzene on soil and modified soil(ammonium -CTMAB modified with 16 alkyl three methyl bromide) was studied.
研究了粘土及改性土壤(十六烷基三甲基溴化铵-CTMAB)对邻苯二酚的吸附,探讨了二者的吸附等温线和吸附动力学,观察了pH值和离子强度对吸附的影响。
2.
Adsorption of m-Dihydroxybenzene in soil,and modified soil by CTMAB is studied,and the adsorption isotherm and kinetics model for the adsorption procedure of phenol are determined.
研究间苯二酚在土壤和改性土壤(CTMAB)中的吸附作用,测定了吸附等温线和吸附动力学过程,分析了pH值和离子强度等因素对吸附量的影响。
6)  soil amelioration
土壤改良
1.
Effects of sand covering and soil amelioration on turf performance of white clover retina sod;
覆沙和土壤改良对白三叶网草皮坪用性状的影响
2.
Taking Heidaigou open-pit coal mine as an example,in the mining area,after engineering reclamation of mined land,the theoretical and technologic problems such as soil amelioration,vegetation variety screening and vegetation technologies and so on had been studied during the process of biological reclamation.
以黑岱沟露天煤矿为例,对矿区工程复垦后土地生物复垦中的土壤改良、植被品种的筛选和植被工艺等理论与技术方面的问题进行了研究。
3.
Based on the physical and chemical properties analysis of red mud from Bayer-process, the soil amelioration and planting on red mud in the storage yard of Pingguo Aluminum Industrial Corporation is investigated in laboratory.
在分析拜耳法赤泥理化性质的基础上 ,研究广西平果铝堆场赤泥的土壤改良与种植。
补充资料:粉煤灰改良土壤


粉煤灰改良土壤
fly ash in soil amelioration

fenme一hu一90}l一ong turong粉煤灰改良土坡(fly ash in 5011 ameliora-tion)粉煤灰是由多种颖粒组成的,包括:碳粒、球形颗粒、蜂窝状顺粒、石英等.粉煤灰中粒径大于。.01 mm的物理性砂粒占85%左右,毛细管孔隙度为“%~85%,视密度为2.。~2.29/cm,,容积密度为。.609/cm,。因此,粉煤灰具有质轻、多砂、多孔、渗透快、吸水性及保温性好、吸附性高等特性。同时,粉煤灰中含有植物所需的多种化学营养元素,因此是一种多功效的土壤改良剂。 扮性土城改良各种猫性土壤都质地猫重、通气透气不良、耕性差,水、肥、气、热不协调,因而影响作物生长。利用粉煤灰的物理特性,适量施人粉煤灰(2 .25~4.5 kg/m,),可以明显地改良土壤质地。主要是:①降低翁土中猫粒相对含量,改良质地;②减小土壤容重.③增加土壤孔隙度,④提高猫土15 cm土层内的温度;⑤提高土坡含水量和田间持水量;⑥调节土壤三相比(固相:液相:气相);⑦减小土镶膨胀率.提高土壤渗透性,防止土坡流失。粉煤灰对猫性土壤物理性质的显著改善.促进了土壤中徽生物活性,有利于养分转化和保温保墒,使水、肥、气、热走向协调,为作物生长创造良好的土壤环境.同时,粉煤灰中含有的硅、铜、锌、钥、钙、铁、锰、翻、硒等营养微量元素,增加了土壤中这些营养元素的含量,改善了土壤养分状况;施用粉煤灰,还可提高土壤中有效磷含量。实践证明,施用适量粉煤灰对小麦、玉米、水稻、大豆等主要作物皆有显著的增产效果,其中小麦平均增产12.7士5.8%,玉米平均增产20.8士10%。另外,对谷子、甘薯、棉花、蔬菜等作物也有一定的增产效果。同时,施用粉煤灰后长出的粮食中蛋白质含量有所增加。 酸性土壤改良对于酸性猫质土壤,除有上述改良作用外,粉煤灰还可以提高土坡中的pH值,使酸性土壤中性化,有利于作物的生长。 盐化潮土的改良向盐化翁性潮土施用粉煤灰,既可改良潮土的翁性,又可起到降盐作用。 在有效硅较低的土壤中,粉煤灰与腐殖酸结合使用,可以提高土壤中有效硅含量,从而改善作物的生长条件。 粉煤灰中含有一定量的有害元素,如锅、铬、铅、砷、汞、苯并(a)花、放射性元素等,经过大量的研究和实践,在施粉煤灰量4.5 kg/mZ以下时,不会对土壤产生污染.对这些土壤中生长的粮食作物也不会造成污染。但由于煤种的不同,粉煤灰中有害元素含量也各有差别,故在施用粉煤灰时应做试验.
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