LANDSCAPE ECOLOGY in AGROECOSYSTEMS MANAGEMENT - CHAPTER 10 potx

... 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 ... by the in ux of polar-maritime air masses from the west, which dominate in the warm months. In winter and spring, a considerable impact on the weather is exerted by arctic...

Ngày tải lên: 11/08/2014, 10:22

... = 3.2 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 10 100 100 0 0.2 0.4 0.6 123 E 4 A C Depth Depth Depth Depth Depth z ... 4.23 Hydraulic conductivity of the four soil layers presented in Figure 4.22. 1234 10 1 10 0 10 -1 1...

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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...

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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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... 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 14 80 80 80 120 120 110 100 90 100 120 110 130 130 180 170 150 150 140 200 240 220 370 320 250 190 200 170 250 230 250 270 280 270 250 240 240 Mean ... Shelterbelts of Various Ages and Adjoining Cultivated Field Date Shelterbelts Fields...

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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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... 1–2 3–5 80 681.3 842.9 845.8 88.9 86.5 83.7 85.1 131.9 164.8 11.1 13.5 16.3 766.4 974.8 101 0.6 100 .0 100 .0 100 .0 Cultivated fields 50 100 m from shelterbelts — 51.9 100 — 51.9 100 0 10 20 30 40 50 60 70 1-2 3-4 5-7 80 years age of shelterbelt number ... Orthoptera dominate. Neverthe- less, in all situations, lower biomass was observed in annual crops in comparison t...

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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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... 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% -5 % 0% 5% Change in ... conditions of relevant indi- cators with reasoning or calculations. The main problems of designing and using such tools lie in minimizing the amount of necessary input d...

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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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