Dissolved Organic Carbon and Nitrogen in Different Mixed Forest Stands in Saline Land of Yellow River Delta

CHEN Yin-ping; XIA Jiang-bao; CAO Jian-bo; WANG Jin-chuang

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Dissolved Organic Carbon and Nitrogen in Different Mixed Forest Stands in Saline Land of Yellow River Delta

- Dissolved Organic Carbon and Nitrogen in Different Mixed Forest Stands in Saline Land of Yellow River Delta
- Bulletin of Soiland Water Conservation Vol. 32, Issue 5, Pages: 87-91(2013)
- 作者机构：
  
  1. 滨州学院山东省黄河三角洲生态环境重点实验室,山东,滨州,256603
  2. 滨州学院,山东,滨州,256603
  3. 中国科学院成都生物研究所,四川,成都,610041
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
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CHEN Yin-ping, XIA Jiang-bao, CAO Jian-bo, et al. Dissolved Organic Carbon and Nitrogen in Different Mixed Forest Stands in Saline Land of Yellow River Delta[J]. Bulletin of Soiland Water Conservation, 2013, 32(5): 87-91.
DOI：

CHEN Yin-ping, XIA Jiang-bao, CAO Jian-bo, et al. Dissolved Organic Carbon and Nitrogen in Different Mixed Forest Stands in Saline Land of Yellow River Delta[J]. Bulletin of Soiland Water Conservation, 2013, 32(5): 87-91. DOI：

摘要

对黄河三角洲盐碱地刺槐纯林、刺槐+白蜡、刺槐+白榆和刺槐+臭椿混交林土壤可溶性有机碳(DOC)和土壤可溶性氮(TNS)进行了研究。结果表明，4种人工林中，腐殖质层DOC和TSN含量显著大于0-20和20-40cm层土壤。刺槐+臭椿混交林的DOC含量最高，为257.70mg/kg。另外，总氮(TN)和TSN含量分别为1065.79和55.80mg/kg，均显著高于其他三种林型。各层土壤DOC和TSN含量由高到底的顺序依次为：刺槐+臭椿混交林 > 刺槐+白榆混交林 > 刺槐纯林 > 刺槐+白蜡混交林。相关分析结果表明，土壤DOC和TSN与土壤的全氮、有效磷、速效钾和含盐量相关性显著。

Abstract

The contents of soil dissolved organic carbon(DOC) in Robinia pseudoacacia Robinia pseudoacacza+Fraxinus chinensis mixed forest

Robinia pseudoacacia+Ulmus pumila mixed forest

and Robinia pseudoacacia+Uilanthus altissima mixed forest in saline land of the Yellow River Delta were studied.Among the four forest patterns

the DOC and dissolved organic N(TSN)in soil humus had significantly higher contents than those in the 0-20 and 20-40 cm soil layers

and the highest content of the DOC was founded in Robinia pseudoacana+llilanthus altissima mixed forest(257.70 mg/kg).In addition

the contents of total N(TN)and the TSN in Robinia pseudoacacia+Uilanthus altissima mixed forest were 1065.79 and 55.80 mg/kg

respectively.Soil contents of the DOC and TSN in the four forest patterns were showed as the order of Robinia pseudoacacia +Ulmus pumila>Robinia pseudoacacia+Uilanth Ailanthus altissima stand>Robinia pseudoacacia stand>Robinia pseudoacacia+Fraxinus chinensis .The DOC and TSN were significantly correlated with TN

available P

available K and salinity.

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