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

切換: 標籤 | MARC模式 | ISBD

The effects of stabilized water leve...

Boers, Aaron Michael.

FindBook

Google Book

Amazon

博客來

The effects of stabilized water levels on invasion by hybrid cattail (Typha x Glauca).

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	The effects of stabilized water levels on invasion by hybrid cattail (Typha x Glauca)./
作者:	Boers, Aaron Michael.
面頁冊數:	132 p.
附註:	Adviser: Joy B. Zedler.
Contained By:	Dissertation Abstracts International67-06B.
標題:	Biology, Botany. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3222829
ISBN:	9780542753244

The effects of stabilized water levels on invasion by hybrid cattail (Typha x Glauca).
Boers, Aaron Michael.

The effects of stabilized water levels on invasion by hybrid cattail (Typha x Glauca). - 132 p.

Adviser: Joy B. Zedler.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2006.

In temperate North American wetlands, an invasive hybrid cattail ( Typha x glauca) often replaces native plants when water levels are stabilized. We found that plots in constructed wetlands in northern Illinois that were flooded for more than 35 days during the growing season tended to be dominated by hybrid cattail, while plots upslope that were flooded fewer days did not. The plots with high cover of hybrid cattail had low species richness. Hybrid cattail-dominated areas resisted the establishment of a native plant community. Plots where we removed the hybrid cattail and planted or seeded native species were re-invaded within two years.

ISBN: 9780542753244Subjects--Topical Terms:

1017825
Biology, Botany.

The effects of stabilized water levels on invasion by hybrid cattail (Typha x Glauca).
LDR:03222nam 2200313 a 45 001 974148
005 20110929
008 110929s2006 eng d
020 $a 9780542753244
035 $a (UMI)AAI3222829
035 $a AAI3222829
040 $a UMI $c UMI
100 1 $a Boers, Aaron Michael. $3 1298092
245 1 4 $a The effects of stabilized water levels on invasion by hybrid cattail (Typha x Glauca).
300 $a 132 p.
500 $a Adviser: Joy B. Zedler.
500 $a Source: Dissertation Abstracts International, Volume: 67-06, Section: B, page: 2928.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 2006.
520 $a In temperate North American wetlands, an invasive hybrid cattail ( Typha x glauca) often replaces native plants when water levels are stabilized. We found that plots in constructed wetlands in northern Illinois that were flooded for more than 35 days during the growing season tended to be dominated by hybrid cattail, while plots upslope that were flooded fewer days did not. The plots with high cover of hybrid cattail had low species richness. Hybrid cattail-dominated areas resisted the establishment of a native plant community. Plots where we removed the hybrid cattail and planted or seeded native species were re-invaded within two years.
520 $a We hypothesized that the invasion of wetlands with extended hydroperiods caused by water-level stabilization might be facilitated by internal eutrophication, whereby chemically-bound phosphorus (P) becomes available to plants from flooded soils. We used a series of air photos to study cattail invasion in three southeastern Wisconsin wetlands. The rates of cattail spread in two constantly flooded wetlands (5,100 m2/year and 81,000 m2/year) were much greater than the rate in a wetland with fluctuating water levels (2,300 m2/year). Internal eutrophication occurred in soil cores from these wetlands; P availability was 4X greater under flooded than moist conditions in the laboratory. We used microcosms to test whether hybrid cattail growth was P-limited, and if increasing the potential for internal eutrophication by extending the hydroperiod could increase growth. Hybrid cattail biomass was 23% greater in microcosms fertilized with 2 g P/m 2, indicating P-limitation. Hybrid cattails grown in constantly flooded microcosms produced 36% greater biomass and took up 40% more P than plants grown in microcosms with two drawdowns; suggesting that increased flooding (which caused internal eutrophication in the laboratory) increased growth and P availability.
520 $a These findings can be used to create strategies for promoting native plant communities in wetlands. Water levels should be managed to have fluctuations similar to undisturbed reference wetlands to minimize internal eutrophication and favor native species. Adaptive approaches should be employed to learn if management techniques achieve restoration goals.
590 $a School code: 0262.
650 4 $a Biology, Botany. $3 1017825
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Environmental Sciences. $3 676987
690 $a 0309
690 $a 0329
690 $a 0768
710 2 0 $a The University of Wisconsin - Madison. $3 626640
773 0 $t Dissertation Abstracts International $g 67-06B.
790 $a 0262
790 1 0 $a Zedler, Joy B., $e advisor
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3222829