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

Ecosystem responses and feedbacks to...

Higgins, Paul.

FindBook

Google Book

Amazon

博客來

Ecosystem responses and feedbacks to abrupt climate change.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Ecosystem responses and feedbacks to abrupt climate change./
作者:	Higgins, Paul.
面頁冊數:	108 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5321.
Contained By:	Dissertation Abstracts International64-11B.
標題:	Biology, Ecology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3111726

Ecosystem responses and feedbacks to abrupt climate change.
Higgins, Paul.

Ecosystem responses and feedbacks to abrupt climate change. - 108 p.

Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5321.

Thesis (Ph.D.)--Stanford University, 2004.

Interactions between subunits of the climate system (ocean, atmosphere, biosphere, and cryosphere) often lead to emergent properties---behaviors not evident when subunits are viewed in isolation. Abrupt climate change, such as could occur under thermohaline circulation (THC) weakening, constitutes one example that is increasingly evident in the paleoclimate record and model experiments. Ecosystem responses to abrupt climate change would likely feedback to the climate system and alter the flow of ecosystem services upon which humans depend.Subjects--Topical Terms:

1017726
Biology, Ecology.

Ecosystem responses and feedbacks to abrupt climate change.
LDR:03407nmm 2200313 4500 001 1861494
005 20041117064926.5
008 130614s2004 eng d
035 $a (UnM)AAI3111726
035 $a AAI3111726
040 $a UnM $c UnM
100 1 $a Higgins, Paul. $3 1949089
245 1 0 $a Ecosystem responses and feedbacks to abrupt climate change.
300 $a 108 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5321.
500 $a Adviser: Stephen Schneider.
502 $a Thesis (Ph.D.)--Stanford University, 2004.
520 $a Interactions between subunits of the climate system (ocean, atmosphere, biosphere, and cryosphere) often lead to emergent properties---behaviors not evident when subunits are viewed in isolation. Abrupt climate change, such as could occur under thermohaline circulation (THC) weakening, constitutes one example that is increasingly evident in the paleoclimate record and model experiments. Ecosystem responses to abrupt climate change would likely feedback to the climate system and alter the flow of ecosystem services upon which humans depend.
520 $a Temperature sensitivity to THC is highest in the North Atlantic region, but this dissertation demonstrates that terrestrial ecosystem responses to THC weakening occur throughout the world. For example, precipitation changes in northern South America threaten local species richness. Currently, northern Amazonia has high levels of precipitation and relatively light land-use. For species richness this constitutes a good-good combination of climate and land use, respectively. In contrast, eastern Brazil has low levels of precipitation and heavy land-use (i.e., a bad-bad combination for species richness). THC weakening causes the precipitation patterns for these two locations to switch, but the loss of species richness associated with the good-good to bad-good transition in northern Amazonia far exceeds the gain in species richness associated with the bad-bad to good-bad transition in eastern Brazil. Thus, large losses in species richness occur. Similarly, plausible temperature changes in England threaten the remnant broadleaf deciduous habitat fragments upon which much remaining local biodiversity depends.
520 $a The broadly distributed ecosystem responses that occur, particularly due to changes in leaf area, also constitute significant feedbacks to local and regional climate. For example, large changes in the distribution of leaf area lead to local and regional changes in absorbed solar radiation. When globally aggregated, however, the changes in absorbed solar radiation and total terrestrial carbon storage change less than 1 percent. Therefore, accurate assessment of ecosystem responses and feedbacks requires spatially disaggregated analysis and careful consideration of scale.
520 $a Finally, biological responses to climate change depend not only on the final state of the climate system but also on the pathway of change. Thus, accurate projection of ecosystem responses to change requires consideration of transient climate responses.
590 $a School code: 0212.
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Environmental Sciences. $3 676987
650 4 $a Biogeochemistry. $3 545717
690 $a 0329
690 $a 0768
690 $a 0425
710 2 0 $a Stanford University. $3 754827
773 0 $t Dissertation Abstracts International $g 64-11B.
790 1 0 $a Schneider, Stephen, $e advisor
790 $a 0212
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3111726