| 张雯,耿增超,陈心想,高海英.生物质炭对盐土改良效应研究[J].干旱地区农业研究,2013,31(2):73~77 |
| 生物质炭对盐土改良效应研究 |
| Effects of biochar on saline soil improvement |
| |
| DOI：10.7606/j.issn.1000-7601.2013.02.14 |
| 中文关键词: 生物质炭 盐土 改良 |
| 英文关键词:biochar saline soil improvement |
| 基金项目:林业局“948”项目“林果木生物质综合转化技术引进”(2009-4-64)；农业部“948”项目“生物炭技术引进及消化”(2010-Z19)；陕西省攻关项目“高效生物炭基缓释肥配方及施用
技术研究”(2010K02-12-1) ；陕西省自然科学基础研究计划项目（2010JM5004） |
|
| 摘要点击次数: 476 |
| 全文下载次数: 551 |
| 中文摘要: |
| 采用小麦、糜子连续盆栽种植试验方法，研究了添加不同用量的生物质炭后，盐土中基础养分含量、pH值、阳离子交换量、水溶性盐及其他盐分离子含量的变化，以期为生物质炭在盐土改良中的应用提供参考。结果表明：随生物质炭用量的增加，盐土中有机碳含量明显提高，矿质态氮、有效磷及速效钾变化很小；pH值略有降低，但各处理间差异不显著；阳离子交换量大幅度增加；水溶性盐含量降低明显，其中Na+、K+、Mg2+及Ca2+降低幅度较大，Cl-和SO42-含量也显著降低。在该盆栽试验中，生物质炭对盐土具有良好的改良效果。 |
| 英文摘要: |
| By planting wheat and proso continually, a pot experiment was conducted to evaluate the changes of basic nutrient content, pH value, cation exchange capacity, water-soluble salts and other salt ions after adding different amount of biochar to the saline soil. The results showed that: with the amount of biochar increasing, the content of organic carbon in the saline soil was significantly improved, while the mineral nitrogen, available phosphorus and available potassium changed very little; the pH value was slightly lowered, but there was no significant differences among the treatments; the CEC increased substantially; the content of soluble salts decreased significantly, especially for Na+, K+, Mg2+
and Ca2+, and the content of Cl- and SO42- also decreased remark
ably. In conclusion, the saline soil was improved effectively by the biochar. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| | |