LANDSCAPE ECOLOGY in AGROECOSYSTEMS MANAGEMENT - CHAPTER 12 pps

... relevant indi- cators with reasoning or calculations. The main problems of designing and using such tools lie in minimizing the amount of necessary input data and reducing the 0919 ch12 frame ... agro- politics as in 1998 (Meyer-Aurich 2001). (A) Situation in an arable farm. (B) Situation in a mixed (animal and crop production) enterprise. A. B. -2 5% -2 0% -1 5% -1 0%...

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... facilitate the incorporation of landscape ecology guidelines into agricultural policies. The same is true for elaboration of operational guidelines for managing biogeochemical bar- riers, e.g., instructions ... roles in the process of nitrogen cycling in the landscape. It seems that processes of biological recycling within the biogeochemical barrier play a substantial role in proce...

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... example, shelterbelt planting in a landscape consisting solely of cultivated fields, although increasing evapotrans- piration rates of the whole area, protects fields against winds, and decreases their evapotranspiration ... pro- cesses be sought in an attempt to pinpoint the driving forces responsible for land- use changes, but environmental processes also should be involved in the ana...

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... mm Rn = 114 W m -2 LE = - 90 W m -2 S = - 15 W m -2 G = - 6 W m -2 0.2 0.2 0.2 0.4 0.4 0.4 0.6 0.6 0.6 0.1 0.2 2 3 4 0.2 0.4 0.6 10 -1 10 -2 10 -3 10 0 B D 10 100 1000 0.2 0.4 0.6 123 E 4 A C Depth Depth Depth Depth Depth z ... Depth Depth Depth Depth K [mm 24h -1 ] J [mm 24h -1 ] z [m] z [m] z [m] z [m] z [m] θ[ m 3 m -3 ] pF dφ/dz ETP =...

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... Adjoining Cultivated Field Date Shelterbelts Fields Adjoining Shelterbelts 7-Year-Old 140-Year-Old 7-Year-Old 140-Year-Old March 12 April 7 May 8 June 5 July 9 August 20 September 14 October 12 November ... Adjoining Cultivated Fields Date Shelterbelts Fields Adjoining Shelterbelts 7-Year-Old 140-Year-Old 7-Year-Old 140-Year-Old March 12 April 7 May 8 June 5 July 9 August 20 September 1...

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... forest buffer were installed under CS-CRP in Iowa (USDA-NRCS-PRMS 2001). In contrast, only 1586 acres were installed under CS-CRP in the same time period in Georgia (USDA-NRCS-PRMS 2001). The distribution ... establishing and maintaining riparian buffers in agricultural landscapes are interested in buffers much wider than the minimum requirement. In general, the first landowners...

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... Orthoptera dominate. Neverthe- less, in all situations, lower biomass was observed in annual crops in comparison to grasslands. Flying insects in the Turew landscape were sampled by catching them in nets fixed ... appear infrequently in the Turew landscape. Plants from all seminatural habitats found in the landscape have their input into weed communities, which indicates the...

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... mobile, moving from the field margin into the crop over short intervals. Introduced field margin strips were rapidly colonized, so that overwintering populations were similar to pre-existing margin habitat ... Affecting Flora Diversity in Field Margin Systems in European Landscapes Landscape Scale Studies Detailed analyses of the margin flora in contrasted landscapes in the three co...

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... self-supportive economic systems • Domination of qualitative changes in the agricultural landscape related to increased inputs of matter and energy to agroecosystems, beginning with the industrial-agricultural ... businesses as well. In suburban areas, in particular along main roads, agricultural landscape is replaced by single-family housing estates or, in Pozna ’s vicinity, by...

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... fields of investigation, including agro- landscape ecology, have contributed to a clearer understanding of our natural world, including a deeper understanding of the relationships and emerging properties ... Landscape ecology: designing sustainable agricultural landscapes, in Integrating Sustainable Agriculture, Ecology, and Environmental Policy, Olson, R. K., Ed., Haworth Press, Bing...

Ngày tải lên: 11/08/2014, 10:22