赤水河上游典型植被中结皮苔藓的成土功能与总氮浓度特征

doi:10.7525/j.issn.1673-5102.2014.05.019

植物研究 ›› 2014, Vol. 34 ›› Issue (5): 706-711.doi: 10.7525/j.issn.1673-5102.2014.05.019

赤水河上游典型植被中结皮苔藓的成土功能与总氮浓度特征

王登富；张朝晖^*

贵州师范大学贵州省山地环境信息系统与生态环境保护重点实验室，贵阳　550001

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2014-09-20 发布日期:2015-03-19
通讯作者: 张朝晖
基金资助:

Total Nitrogen Concentration and Pedogenic Function of Bryophyte Crust in Typical Vegetations in Upstream of Chishui River

WANG Deng-Fu;ZHANG Zhao-Hui*

Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province,Guizhou Normal University,Guiyang　550001

Received:1900-01-01 Revised:1900-01-01 Online:2014-09-20 Published:2015-03-19
Contact: ZHANG Zhao-Hui
Supported by:

摘要/Abstract

摘要： 对赤水河上游典型植被中苔藓植物物种进行了调查，选取羽枝青藓(Brachythecium plumosum)、长帽绢藓(Entodon dolichocucullatus)、长喙灰藓(Hypnum fujiyamae)、皱叶麻羽藓(Claopodium rugulosifolium)和拟脆枝曲柄藓(Campylopus subfragilis)5种结皮苔藓进行成土功能与总氮浓度特征的研究。结果表明：（1）苔藓植物有14科18属26种(含变种、亚种)，藓类植物占优势；（2）生物量为0.40~36.80 g·m^-2，成土量为9.60~249.20 g·m^-2，长喙灰藓的生物量和成土量高于其他结皮苔藓，对治理砂页岩区水土流失具有重要意义；（3）植物总氮（TN）浓度为1.20%~1.87%，土壤TN浓度为0.07%~0.50%，两者中长喙灰藓—土壤最高，拟脆枝曲柄藓—土壤最低，TN浓度随海拔的升高均出现先增大后减小的规律；（4）相关性分析表明，植物和土壤TN浓度差异大，最大相差倍数约17.14倍，但两者具有明显的正相关性。通过植物和土壤TN浓度特征的探究，为该地区生物地球化学作用的研究奠定了基础。

关键词: 赤水河上游, 典型植被, 结皮苔藓, 成土功能, TN浓度

Abstract: An investigation on the bryophyte species in typical vegetations in upstream of Chishui river was conducted. The total nitrogen concentration and pedogenic function of Brachythecium plumosum, Entodon dolichocucullatus, Hypnum fujiyamae, Claopodium rugulosifolium and Campylopus subfragilis were studied. The results showed: (1) There are 26 taxa of bryophytes belonging to 18 genera and 14 families and the dominant bryophytes were the mosses; (2) The biomass and pedogenesis amount of these 5 bryophytes crust were 0.40-36.80 and 9.60-249.20 g·m^-2, respectively. The biomass and pedogenesis amount were higher in H.fujiyamae, which has significance in the water and soil loss control; (3) The total nitrogen concentrations of bryophytes and soil were 1.20%-1.87% and 0.07%-0.50%, respectively. The total nitrogen concentration was the highest between H.fujiyamae and soil, and the lowest between C.subfragilis and soil. With the increasing of altitude, the total nitrogen concentration decreased after an initial increase; (4) Correlation analysis showed that the differences in total nitrogen concentration between plant and soil were significant, the total nitrogen concentration in plant was 17.14 times of that in soil, however, the total nitrogen concentration in plant was significantly positively correlated with that in soil. Study on the total nitrogen concentrations of plant and soil lays the foundation for biogeochemical study in this area.

Key words: upstream of Chishui river, typical vegetations, bryophyte crust, pedogenic function, TN concentration

中图分类号:

Q948.1

王登富;张朝晖*. 赤水河上游典型植被中结皮苔藓的成土功能与总氮浓度特征[J]. 植物研究, 2014, 34(5): 706-711.

WANG Deng-Fu;ZHANG Zhao-Hui*. Total Nitrogen Concentration and Pedogenic Function of Bryophyte Crust in Typical Vegetations in Upstream of Chishui River[J]. Bulletin of Botanical Research, 2014, 34(5): 706-711.

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赤水河上游典型植被中结皮苔藓的成土功能与总氮浓度特征

Total Nitrogen Concentration and Pedogenic Function of Bryophyte Crust in Typical Vegetations in Upstream of Chishui River

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