Plant Species Richness Increased Belowground Plant Biomass and Substrate Nitrogen Removal in a Constructed Wetland

被引：31

作者：

Wang, Hai ^{[1
]}

Chen, Zheng-Xin ^{[1
]}

Zhang, Xiao-Yu ^{[1
]}

Zhu, Si-Xi ^{[1
]}

Ge, Ying ^{[1
]}

Chang, Scott-X. ^{[2
]}

Zhang, Chong-Bang ^{[3
]}

Huang, Cheng-Cai ^{[4
]}

Chang, Jie ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Life Sci, Hangzhou 310058, Zhejiang, Peoples R China

[2] Univ Alberta, Dept Renewable Resources, Edmonton, AB, Canada

[3] Taizhou Univ, Coll Life Sci, Linhai, Peoples R China

[4] Shaoxing Univ, Coll Life Sci, Shaoxing, Peoples R China

来源：

CLEAN-SOIL AIR WATER | 2013年 / 41卷 / 07期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

Ammonium; Nitrate; Nitrogen pool; Plant biomass; Plant diversity; ELEVATED CO2; ECOSYSTEM PROCESSES; EXPERIMENTAL GRASSLAND; LUXURY CONSUMPTION; LIMITED GRASSLAND; SOIL-NITROGEN; DIVERSITY; PRODUCTIVITY; BIODIVERSITY; NUTRIENTS;

D O I：

10.1002/clen.201200348

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of plant species richness on both above- and belowground plant biomass, plant nitrogen (N) pool size, and substrate N concentrations were studied in a full-scale subsurface vertical-flow constructed wetland (CW). Results showed that (i) plant species richness increased belowground plant biomass and its N pool size but had no effect on aboveground plant biomass and its N pool size; (ii) plant species richness increased substrate N removal, especially ammonium N removal; and (iii) plant species richness had no effect on plant N use efficiency, suggesting that the N pool size increased with increasing plant species richness. More N accumulation could be removed through harvesting plant biomass. We concluded that the N removal performance of the CW improved by plant species richness through increasing belowground biomass and relevant N pool size.

引用

页码：657 / 664

页数：8

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