LANDSCAPE ECOLOGY in AGROECOSYSTEMS MANAGEMENT - CHAPTER 5 pdf

... 14 4. 35 4.81 4 .56 4. 25 6.20 9.17 7.76 5. 07 4. 35 590 .5 591.8 609.1 52 7.3 602.7 57 1.4 53 8.4 657 .3 54 9.1 16.88 14 .50 18.96 5. 32 4.88 3 .58 7.94 4. 05 2. 15 1634.3 1677.3 1416 .5 254 1.4 56 44.9 3400.7 2138.0 3133.0 2320.7 6. 45 5.98 7. 25 5.27 5. 30 8.40 5. 30 3.40 3.07 354 .8 350 .6 355 .1 497.1 421.2 472.4 50 6.4 488.9 50 1.2 4 .53 4.38 3.94 2 .50 2.67...

Ngày tải lên: 11/08/2014, 10:22

... installed under CS-CRP in Iowa (USDA-NRCS-PRMS 2001). In contrast, only 158 6 acres were installed under CS-CRP in the same time period in Georgia (USDA-NRCS-PRMS 2001). The distribution of CS-CRP riparian ... 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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... 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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... 20 Hour -1 00 -5 0 0 50 100 150 B Evapotranspiration [mm hour -1 ] Net radiation [W m -2 ] 0.20 -0 .10 -0 . 05 0.00 0. 05 0.10 0. 15 0. 25 0.30 0. 35 0.40 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Hour -1 00 -5 0 0 50 100 150 200 250 300 350 400 Net radiation ... field (index E S ) during sunny and cloudy days, Cessieres, France. -0 .10 -0 . 05...

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... Protozoa Nematoda Lumbricidae Enchytraeidae Acarina Collembola Winged insects mainly larvae 440.0 55 7.4 940.0 50 .9 11.2 47.4 109.6 1190.0 314.6 56 .0 26 .5 1.3 20 .5 14.6 52 5.0 816.6 3840.0 198.6 4 75. 7 65. 6 4883.0 1360.0 499 .5 254 .2 88.7 22.6 21.1 223.7 Total ... ( 25. 0) 5. 4 (26.0) 0.7 (3.3) 23.1 ( 45. 7) 11.1 (22.0) 13.8 (27.4) 2 .5 (4.9) 19.4 (53 .1) 7.0 (19.1) 8 .5...

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... treated in factorial combinations of fertilizer and herbicide. 0 25% (27 .5 kg N/ha/year) 50 % (55 kg N/ha/year) 50 % (100 mg/ha/year) 10% (20 mg/ha/year) 5% (10 mg/ha/year) 0 0 5 10 15 20 25 30 35 Number ... Affecting Flora Diversity in Field Margin Systems in European Landscapes Landscape Scale Studies Detailed analyses of the margin flora in contrasted landscapes...

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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 ... eolian sands Terraces with dunes, flood plains Leucobryo-Pinetum 51 .5% Pine 93.6% Oak 1.1% Beech 0.3% Alder 1 .5% Równina Nowotomysko-Kar g owska [Plain of Nowy Tomy...

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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 ... flora p artridge amphibia changes in the goal achievement (%) -1 5 -1 0 -5 0 5 10 15 20 25 30 cash crop farm crop and animal farm gross margin nitra...

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... 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, Binghamton, N...

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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...

Ngày tải lên: 11/08/2014, 10:22