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Ekologiya
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səhifə | 12/16 | tarix | 29.03.2023 | ölçüsü | 204,03 Kb. | | #103603 |
| 2. 2-Topshiriq. Ekologiya fanidan.Hisoblash: S = 0,5 ga maydonga ega bo'lgan uchastkada unumdor tuproq qatlamining hajmi va vazni qo’yidagiga teng bo'ladi:
, .
Moddiy muvozanat tenglamasiga muvofiq cho'kindilarning massasini aniqlash uchun avvalo bir kilogramm cho'kindiga mis va nitratlarning konsentratsiyasini topishingiz kerak:
.
Mis va nitratlar uchun ruxsat etilgan maksimal cho'kindi massasini aniqlash uchun aralashtirishdan keyin ularning har birining kontsentratsiyasini maksimal ruxsat etilgan kontsentratsiyasiga (REK) teng deb olamiz.
.
Hisob-kitoblar shuni ko'rsatadiki, mis va nitratlar uchun ruxsat etilgan cho’kma massasi har xil, shuning uchun loyni joylashtirish uchun siz yotqizilgan cho’kma massasining minimal qiymatini tanlashingiz kerak, ya'ni.
.
Mis uchun hisoblangan va 804,8 tonnaga teng bo'lgan cho'kindi massasini tanlashda aralashgandan keyin cho'kindagi nitratlarning konsentratsiyasi quyidagicha bo'ladi:
,
ya’ni, ruxsat etilgan kontsentratsiyadan kam.
Maydonga joylashtirish uchun mo'ljallangan maksimal hajm ( ) va cho'kindi balandligi ( ) quyidagicha bo'ladi:
, .
Vazifa. Guruh ro'yxati tartib raqamga ko'ra tanlangan variant bo'yicha S hududda m massasini, hajmini V va balandligi h ni, shuningdek S hududida qishloq xo'jaligi ob'ekti uchun o'g'it sifatida ishlatilishi mumkin bo'lgan barcha tarkibiy qismlarning kontsentratsiyasini aniqlang.
2.5a-jadval
Vazifani bajarish uchun variantlar
Вариант рақамларини паспортингизни охирги рақами бўйича оласиз (АА2568794)
Hisoblash ma'lumotlari
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Variant №
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1,
3,
5,
7,
9,
11,
13,
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2,
4,
6,
8,
10,
12,
14
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15,
17,
19,
21,
23,
25,
27,
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16,
18,
20,
22,
24,
26,
28,
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29,
31,
33,
35,
37,
39,
41,
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30,
32,
34,
36,
38,
40,
42,
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43,
45,
47,
49,
51,
53,
55,
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44,
46,
48,
50,
52,
54,
56,
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57,
59,
61,
63,
65,
67,
69,
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58,
60,
62,
64,
66,
68,
70.
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Uchastkalar maydoni , ga
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0,5
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0,6
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0,7
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0,8
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0,9
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1,0
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1,1
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1,2
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1,3
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1,4
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Tuproq qatlamining qalinligi , m
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0,2
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0,25
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0,3
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0,25
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0,3
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0,2
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0,25
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0,3
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0,2
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0,3
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Tuproq qatlamining zichligi
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1,50
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1,51
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1,52
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1,53
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1,54
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1,55
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1,56
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1,57
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1,58
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1,59
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Tuproq qatlamidagi fon tarkibi
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0,20
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0,30
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0,40
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0,50
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0,60
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0,70
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0,80
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0,20
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0,30
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0,40
|
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200
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220
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240
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260
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280
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300
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350
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400
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450
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500
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|
50
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60
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70
|
80
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90
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100
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110
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120
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130
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140
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30
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35
|
40
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45
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50
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55
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60
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65
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70
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75
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Cho'kindagi ning tarkibi, .
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14
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15
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16
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17
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18
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19
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20
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22
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24
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26
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1600
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1700
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1800
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1900
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2000
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2100
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2200
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2300
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2400
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2500
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500
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600
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700
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800
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900
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1000
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1100
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1200
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1300
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1400
|
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300
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400
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500
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600
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700
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800
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900
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1000
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1100
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1200
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Cho'kindilar zichligi
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1,35
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1,30
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1,25
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1,40
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1,20
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1,30
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1,22
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1,26
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1,28
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1,32
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2.6-jadval
Tuproqdagi moddalarning ruxsat etilgan maksimal konsentratsiyasi
Moddaning nomi
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Mis
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Marganets
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Vanadiy
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Nitratlar
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Tuproqning REK, mg/kg
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3,0
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1000
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150
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130
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2.3. Topshiriqni bajarish uchun
Javoblar: (bu yerda o’z variantingizni berilishini yozib kiyin hisoblaysiz)
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