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Optimizing native and landscape plan...

Gerhart, Vanda Jane.

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Optimizing native and landscape plant establishment under marginal soil and water conditions in southwestern deserts.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Optimizing native and landscape plant establishment under marginal soil and water conditions in southwestern deserts./
作者:	Gerhart, Vanda Jane.
面頁冊數:	169 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0026.
Contained By:	Dissertation Abstracts International66-01B.
標題:	Agriculture, Soil Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3159879
ISBN:	9780496937882

Optimizing native and landscape plant establishment under marginal soil and water conditions in southwestern deserts.
Gerhart, Vanda Jane.

Optimizing native and landscape plant establishment under marginal soil and water conditions in southwestern deserts. - 169 p.

Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0026.

Thesis (Ph.D.)--The University of Arizona, 2005.

Two aspects of salinity in arid land were investigated as part of the present dissertation: the first was the potential re-use of industrially generated brine for irrigating landscape plants, and the second was the ecological restoration of saline farmland. The following is a summary of the most important points.

ISBN: 9780496937882Subjects--Topical Terms:

1017824
Agriculture, Soil Science.

Optimizing native and landscape plant establishment under marginal soil and water conditions in southwestern deserts.
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245 1 0 $a Optimizing native and landscape plant establishment under marginal soil and water conditions in southwestern deserts.
300 $a 169 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0026.
500 $a Adviser: Edward P. Glenn.
502 $a Thesis (Ph.D.)--The University of Arizona, 2005.
520 $a Two aspects of salinity in arid land were investigated as part of the present dissertation: the first was the potential re-use of industrially generated brine for irrigating landscape plants, and the second was the ecological restoration of saline farmland. The following is a summary of the most important points.
520 $a With water conservation efforts accelerating in arid environments, industrial wastewater is considered a candidate for re-use. We investigated the use of high EC (electrical conductivity) cooling-tower water to irrigate nine common landscape plants in an urban environment. Each plant (replicated in a block design) was irrigated according to water demand determined by the soil moisture deficit, with one of three water treatments: blowdown water (3.65 dS m -1), well water (0.52 dS m-1) and a 1:1 blend (2.09 dS m-1). Results indicate the salinity of the irrigation water did not have a significant effect (P > 0.05) on growth or water use but, soil salinities were higher in basins irrigated with blowdown water compared to those irrigated with well water. The overall feasibility of reusing industrial brines to irrigate urban landscapes is discussed in light of the results.
520 $a Restoring abandoned arid farmland can be challenging because topographic, geomorphic and hydrologic features have been degraded and cannot support a diverse native plant community. Typical amelioration practices depend upon good quality water to restore the soil's physiochemical properties, however the long-term availability of any water is rare. A mitigation banking project to return 432 hectares of farmland to an open-space designation involved the collaboration of scientists, landscape architects and engineers to achieve five main goals: water management, erosion control, decreasing soil salinity, and increasing species diversity and vegetation cover. Two strategies evolved in the planning process that work in tandem to achieve these goals: a water management system that redirects storm water and run-off to discrete areas of the site for subsurface storage as plant-available water, and the introduction of a diverse mix of native plants. Field trials tested the strategies and also investigated different soil surface treatments, seeding methods and irrigation regimes against the germination and establishment of a customized native seed mix. Results from vegetation data indicate a combination of soil ripping and imprinting leads to the highest germination and establishment rates and drip irrigation helped establish transplanted seedlings. The project was designed so the long-term outcome does not depend on continual inputs and maintenance.
590 $a School code: 0009.
650 4 $a Agriculture, Soil Science. $3 1017824
650 4 $a Agriculture, Forestry and Wildlife. $3 783690
650 4 $a Biology, Ecology. $3 1017726
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710 2 0 $a The University of Arizona. $3 1017508
773 0 $t Dissertation Abstracts International $g 66-01B.
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