東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁 到查詢結果 [ null ]

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Phytoremediation Efficacy of Eastern Cottonwood (Populous deltoids) to Heavy Metal Contamination.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Phytoremediation Efficacy of Eastern Cottonwood (Populous deltoids) to Heavy Metal Contamination./
作者:	Beals, Mary Kaye.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	393 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
Contained By:	Dissertations Abstracts International83-12B.
標題:	Botany. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29212102
ISBN:	9798438770367

Phytoremediation Efficacy of Eastern Cottonwood (Populous deltoids) to Heavy Metal Contamination.
Beals, Mary Kaye.

Phytoremediation Efficacy of Eastern Cottonwood (Populous deltoids) to Heavy Metal Contamination. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 393 p.

Source: Dissertations Abstracts International, Volume: 83-12, Section: B.

Thesis (Ph.D.)--Southern University and Agricultural and Mechanical College, 2021.

This item must not be sold to any third party vendors.

Contaminated sites expose humans to toxic heavy metals. It is critical that economically sound environmental management practices be developed to remediate the contaminated sites. This study aims to determine the phytoremediation potential of Eastern Cottonwood (Populus deltoides), a widely distributed tree species. The objectives were to evaluate the ability of the Eastern Cottonwood in removing varying concentrations of heavy metals cadmium nitrate tetrahydrate (Cd), lead nitrate (Pb), and cadmium-lead combination (CbPb); assess the performance of leaves, stems, and roots in heavy metal uptake; compare the heavy metal contents in the plant tissues verses in the soil and determine the effects of heavy metal on plant and soil nutrients. The experiments were conducted in a controlled environment in Southern University greenhouse in Baton Rouge, LA. Eastern Cottonwood were planted in the containers and treated with various concentrations of Cd, Pb, and CdPb. Plant tissue samples and soil samples were collected for chemical analyses using carbon-nitrogen test, digestion, and extraction methods, as well as the Inductively Coupling Argon Plasma (ICAP) method. Data on heavy metalcontents and nutrient contents in the plant tissues and in the soil were collected and analyzed using SPSS statistical software. Results indicated that stems and leaves of treated plants have significantly higher Cd and Pb concentration compared to the control. Cd and Pb uptake by stems and leaves is significantly increased as the Cd and Pb concentration in the soil increased. Cd and Pb concentration in stems and leaves are higher than in soil. Soil phosphorous (P), calcium (Ca), and magnesium (Mg) contents are significantly hindered by Cd and Pb, but potassium (K) content is not. Leaf P, Ca, Mg, and boron (B) hindrance in the presence of Cd/Pb (1:1 ratio) is significant. Leaf carbon (C), K, sulfur (S), and sodium (Na) content of treated plants showed no significant correlation with the heavy metals' contents. Heavy metal Arsenic in the presence of the Pb is statistically significant. The study results contribute to phytoremediation science and literatures and can be applied to the contaminated site remediation.

ISBN: 9798438770367Subjects--Topical Terms:

516217
Botany.
Subjects--Index Terms:

Ecology

Phytoremediation Efficacy of Eastern Cottonwood (Populous deltoids) to Heavy Metal Contamination.
LDR:03419nmm a2200373 4500 001 2349433
005 20220920134315.5
008 241004s2021 ||||||||||||||||| ||eng d
020 $a 9798438770367
035 $a (MiAaPQ)AAI29212102
035 $a AAI29212102
040 $a MiAaPQ $c MiAaPQ
100 1 $a Beals, Mary Kaye. $0 (orcid)0000-0002-1238-406X $3 3688846
245 1 0 $a Phytoremediation Efficacy of Eastern Cottonwood (Populous deltoids) to Heavy Metal Contamination.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 393 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
500 $a Advisor: Ning, Zhu.
502 $a Thesis (Ph.D.)--Southern University and Agricultural and Mechanical College, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Contaminated sites expose humans to toxic heavy metals. It is critical that economically sound environmental management practices be developed to remediate the contaminated sites. This study aims to determine the phytoremediation potential of Eastern Cottonwood (Populus deltoides), a widely distributed tree species. The objectives were to evaluate the ability of the Eastern Cottonwood in removing varying concentrations of heavy metals cadmium nitrate tetrahydrate (Cd), lead nitrate (Pb), and cadmium-lead combination (CbPb); assess the performance of leaves, stems, and roots in heavy metal uptake; compare the heavy metal contents in the plant tissues verses in the soil and determine the effects of heavy metal on plant and soil nutrients. The experiments were conducted in a controlled environment in Southern University greenhouse in Baton Rouge, LA. Eastern Cottonwood were planted in the containers and treated with various concentrations of Cd, Pb, and CdPb. Plant tissue samples and soil samples were collected for chemical analyses using carbon-nitrogen test, digestion, and extraction methods, as well as the Inductively Coupling Argon Plasma (ICAP) method. Data on heavy metalcontents and nutrient contents in the plant tissues and in the soil were collected and analyzed using SPSS statistical software. Results indicated that stems and leaves of treated plants have significantly higher Cd and Pb concentration compared to the control. Cd and Pb uptake by stems and leaves is significantly increased as the Cd and Pb concentration in the soil increased. Cd and Pb concentration in stems and leaves are higher than in soil. Soil phosphorous (P), calcium (Ca), and magnesium (Mg) contents are significantly hindered by Cd and Pb, but potassium (K) content is not. Leaf P, Ca, Mg, and boron (B) hindrance in the presence of Cd/Pb (1:1 ratio) is significant. Leaf carbon (C), K, sulfur (S), and sodium (Na) content of treated plants showed no significant correlation with the heavy metals' contents. Heavy metal Arsenic in the presence of the Pb is statistically significant. The study results contribute to phytoremediation science and literatures and can be applied to the contaminated site remediation.
590 $a School code: 1218.
650 4 $a Botany. $3 516217
650 4 $a Urban forestry. $3 704817
650 4 $a Environmental health. $3 543032
653 $a Ecology
653 $a Environmental
653 $a Heavy metals
653 $a Natural resources
653 $a Phytoremediation
690 $a 0309
690 $a 0281
690 $a 0470
710 2 $a Southern University and Agricultural and Mechanical College. $b Urban Forestry. $3 3283074
773 0 $t Dissertations Abstracts International $g 83-12B.
790 $a 1218
791 $a Ph.D.
792 $a 2021
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29212102