Changes in Soil Organic Carbon Fractions with Land Uses in Soils Reclaimed from Wetlands of Jianghan Plain,Hubei Province

TAI Ji-cheng; JIN Zhen-jiang

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Changes in Soil Organic Carbon Fractions with Land Uses in Soils Reclaimed from Wetlands of Jianghan Plain,Hubei Province

更新时间：2024-11-07

- Changes in Soil Organic Carbon Fractions with Land Uses in Soils Reclaimed from Wetlands of Jianghan Plain,Hubei Province
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  1. 南京农业大学农业资源与生态环境研究所
  2. 内蒙古民族大学农学院
  3. 桂林理工大学环境科学与工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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TAI Ji-cheng, JIN Zhen-jiang. Changes in Soil Organic Carbon Fractions with Land Uses in Soils Reclaimed from Wetlands of Jianghan Plain,Hubei Province[J]. 2011, 25(6).
DOI：

TAI Ji-cheng, JIN Zhen-jiang. Changes in Soil Organic Carbon Fractions with Land Uses in Soils Reclaimed from Wetlands of Jianghan Plain,Hubei Province[J]. 2011, 25(6). DOI：

摘要

调查采集长江荆江段湿地围垦农田土壤的表土样品

实验室分析总有机碳(SOC)、热水溶性有机碳(HWEC)、颗粒态有机碳(POC)、易氧化有机碳(LOC)及有机碳键合组分含量特征

比较分析不同土地利用方式下湿地起源土壤有机碳组分的变化。结果表明

棉田土壤总有机碳含量为(8.86±0.73)g/kg

桔园的为(9.07±0.01)g/kg

湿地的为(10.30±0.37)g/kg

稻田的为(15.57±1.92)g/kg。即棉田和桔园的总有机碳含量接近于湿地的

而稻田的较大幅度高于前面旱地和湿地的。同时

稻田的热水溶性有机碳含量显著高于棉田的(p<0.05);颗粒态有机碳含量显著高于桔园的(p<0.05);易氧化有机碳含量变化与总有机碳一致。但是

从不同组分比率来说

湿地、稻田、棉田间HWEC/SOC、POC/SOC和LOC/SOC均无显著差异(p>0.05)

而桔园HWEC/SOC显著高于其他利用方式的(p<0.05)

棉田POC/SOC显著高于桔园的(p<0.05)

桔园LOC/SOC显著高于湿地的(p<0.05)。供试土壤中铁铝键合态有机碳含量均显著高于相应钙键合态有机碳(p<0.05)

且后者在不同土地利用...

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