東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

A multi-scale view of plant diversit...

Augustine, Lauren Alexander.

Linked to FindBook

Google Book

Amazon

博客來

A multi-scale view of plant diversity and hydrogeomorphology in Chesapeake Bay forested wetlands.

Record Type:	Electronic resources : Monograph/item
Title/Author:	A multi-scale view of plant diversity and hydrogeomorphology in Chesapeake Bay forested wetlands./
Author:	Augustine, Lauren Alexander.
Description:	283 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-05, Section: B, page: 1989.
Contained By:	Dissertation Abstracts International64-05B.
Subject:	Biology, Ecology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3091510

A multi-scale view of plant diversity and hydrogeomorphology in Chesapeake Bay forested wetlands.
Augustine, Lauren Alexander.

A multi-scale view of plant diversity and hydrogeomorphology in Chesapeake Bay forested wetlands. - 283 p.

Source: Dissertation Abstracts International, Volume: 64-05, Section: B, page: 1989.

Thesis (Ph.D.)--Harvard University, 2003.

Forested wetlands trap sediment, store floodwater, and host high plant diversity. Field surveys were conducted at 15 sites at upper, middle and lower locations on six river floodplains in the Chesapeake Bay Coastal Plain Region. Objectives of this study were to: (1) measure plant species richness, woody species diversity, and hydrogeomorphic conditions in floodplain forests; (2) relate plant diversity and composition to spatial, hydrologic, and substrate conditions; and (3) evaluate these relationships at four spatial scales (plot, site, river watershed, and regional).Subjects--Topical Terms:

1017726
Biology, Ecology.

A multi-scale view of plant diversity and hydrogeomorphology in Chesapeake Bay forested wetlands.
LDR:03441nmm 2200313 4500 001 1859869
005 20041021080233.5
008 130614s2003 eng d
035 $a (UnM)AAI3091510
035 $a AAI3091510
040 $a UnM $c UnM
100 1 $a Augustine, Lauren Alexander. $3 1947524
245 1 0 $a A multi-scale view of plant diversity and hydrogeomorphology in Chesapeake Bay forested wetlands.
300 $a 283 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-05, Section: B, page: 1989.
500 $a Adviser: Richard T. T. Forman.
502 $a Thesis (Ph.D.)--Harvard University, 2003.
520 $a Forested wetlands trap sediment, store floodwater, and host high plant diversity. Field surveys were conducted at 15 sites at upper, middle and lower locations on six river floodplains in the Chesapeake Bay Coastal Plain Region. Objectives of this study were to: (1) measure plant species richness, woody species diversity, and hydrogeomorphic conditions in floodplain forests; (2) relate plant diversity and composition to spatial, hydrologic, and substrate conditions; and (3) evaluate these relationships at four spatial scales (plot, site, river watershed, and regional).
520 $a Major findings include: (1) species richness and Tree diversity are significantly related to and explained by hydrogeomorphic variables; (2) relationships between plant diversity and spatial and hydrogeomorphic variables vary depending on spatial scale; and (3) spatial position along the longitudinal gradient strongly impacts plant diversity and hydrogeomorphic conditions.
520 $a Species richness, tree diversity, hydrologic values, and microtopographic relief increase with downstream position. Woody species diversity (Tree H<super> ′</super>) shows no relationship to hydroperiod, and species richness decreased (plot scale) or showed no relationship with hydroperiod. Overall, plot-scale relationships were the least significant. Plant patterns of diversity (species richness and Tree H<super>′</super>) were best described at the site scale. Predictor variables for site-scale plant diversity were downstream position, micro topographic range, and hydroperiod. Hydroperiod, and microtopographic relief were explained at the watershed scale. Support for top-down hierarchy theory (but not the intermediate disturbance hypothesis) is presented as a control on plant diversity at local sites and plots.
520 $a Regional scale analyses reveal significant differences between Eastern and Western Shore sites and alluvial and blackwater sites, but variograms indicate that none of the measured variables changed as a function of spatial position alone. Environmental policy decisions require improved ways to understand the mechanics of ecological systems, tools to interpret ecological phenomena, and methods to use in decision-making that can balance economic, ecologic, and societal tradeoffs in environmental policies. This research provides potential diagnostic, speculative, and conservation tools for planning and wetland policy efforts for the Chesapeake Bay Coastal Plain.
590 $a School code: 0084.
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Environmental Sciences. $3 676987
650 4 $a Hydrology. $3 545716
690 $a 0329
690 $a 0768
690 $a 0388
710 2 0 $a Harvard University. $3 528741
773 0 $t Dissertation Abstracts International $g 64-05B.
790 1 0 $a Forman, Richard T. T., $e advisor
790 $a 0084
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3091510