Upload File

Download - Name: Per.: Date: Assignment #: Environmental Science …fleminges.weebly.com/uploads/2/4/6/5/24658308/env_sci_notes_15.2.pdf · a. Desertification is especially an issue in the Sahel

Transcript
Page 1: Name: Per.: Date: Assignment #: Environmental Science …fleminges.weebly.com/uploads/2/4/6/5/24658308/env_sci_notes_15.2.pdf · a. Desertification is especially an issue in the Sahel

Name:___________________________________________________Per.:_______Date:__________________Assignment#:______EnvironmentalScience15.2CropsandSoilA

Introduction

A. Cananypieceoflandbeusedtogrowcrops?

B. Only____________________ofEarth’slandcanbeusedtogrowcrops

C. Asurbanareascontinuetogrowandoccupyspace,agriculturallandbecomes

__________________________________andfooddemand__________________________________

Agriculture:TraditionalandModern

A. Basicfarmingprocesses:plowing,fertilization,irrigation,andpestcontrol

B. Traditionalagriculture:

a. Farmersorlivestock______________________________________tohelpmixandloosensoil

b. Organicfertilizers(__________________________________)areusedtoenrichsoil

c. Waterirrigationvia__________________________________

d. __________________________________mustberemoved

C. ModernPractices/IndustrialCountries:

a. ____________________________________________________________________plowsoilandharvestcrop

b. ___________________________________________________fertilizersareused

c. Overheadsprinklersor___________________________________________________systemsused

Page 2: Name: Per.: Date: Assignment #: Environmental Science …fleminges.weebly.com/uploads/2/4/6/5/24658308/env_sci_notes_15.2.pdf · a. Desertification is especially an issue in the Sahel

FertileSoil:TheLivingEarth

A. ________________________isformedwhen____________________________________________________________________

intosmallerfragmentsthroughwind,water,andchemicalweathering

B. ___________________________________________=soilthatcansupportthegrowthofhealthyplants

C. __________________________________=thesurfacelayerofsoil=

_____________________________________________________________________________________

a. Topsoilistypicallyricherin________________________________________,andshouldcontainliving

organisms,rocks,water,air,anddeadorganisms

b. ____________________________________________liveinsoilandhelp__________________________________

deadplantsandorganicdebrisàthisaddsmorenutrientstothesoil

SoilErosion:AGlobalProblem

A. Erosion=____________________________________________________________________________________________________

____________________________________________________________________

a. Erosioncancausetopsoilloss,makingtheland__________________________________

B. Manyfarmingmethods__________________________________therateofsoilerosion

LandDegradation

A. Landbecomes__________________________________whenhumanactivityornaturalprocessesdamage

thelandanditcan_____________________________________________________________________________________

B. ___________________________________________________=whenarelativelydrylandregionbecomes

increasinglyaridanddesert-like

Page 3: Name: Per.: Date: Assignment #: Environmental Science …fleminges.weebly.com/uploads/2/4/6/5/24658308/env_sci_notes_15.2.pdf · a. Desertification is especially an issue in the Sahel

a. DesertificationisespeciallyanissueintheSahelregionofnorthernAfricadueto____________

_________________________________________________________________________________________________________

SoilConservation

A. Soilmustbeprotectedandmanagedtoreduceerosion

B. Soil-retaining_______________________________helppreventdownhillerosion

C. _______________________________________________orvegetationstripsarealsousedtopreventsoilerosion

D. ________________________________________________helpreduceerosioncausedbywaterwashingawaysoil

E. No-tillfarming=___________________________________________________

a. Helpsreducesoilerosion,butnoteffectiveforallcrops

EnrichingtheSoil

A. Traditionalfarming:addingorganicmatter,suchas_____________________________andleaves,canadd

nutrientstothesoil

B. _________________________________________________arenowusedtoaddnutrients

C. Compost=___________________________________________________organicmaterial

a. Compostcanbeusedtoenrichsoil

Salinization

A. Salinization=the____________________________________________________________________insoil

B. Inregionswithlowrainfall,suchasCalifornia,salinizationisaproblemàhighsaltcontentinsoil

can_____________________________________________________________________________________

Page 4: Name: Per.: Date: Assignment #: Environmental Science …fleminges.weebly.com/uploads/2/4/6/5/24658308/env_sci_notes_15.2.pdf · a. Desertification is especially an issue in the Sahel

Section2FormativeAssessmentp.394

1.

TraditionalFarmingMethods ModernFarmingMethods

2.______________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

3.______________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

4.______________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________


Top Related

Monitoring and assessment of desertification using ... · Monitoring and assessment of desertification using satellite remote sensing P.S. Dhinwa1, A. Dasgupta2 ... Desertification
Monitoring and assessment of desertification using ... · Monitoring and assessment of desertification using satellite remote sensing P.S. Dhinwa1, A. Dasgupta2 ... Desertification
Desertification & migration - catalogue.unccd.intcatalogue.unccd.int/22_loose_leaf_Desertification_migration.pdf · and desertification contribute to human mobility, and worsening
Desertification & migration - catalogue.unccd.intcatalogue.unccd.int/22_loose_leaf_Desertification_migration.pdf · and desertification contribute to human mobility, and worsening
Desertification The 5-D’s and the historical geography of desertification DRYLANDS DROUGHT DESICCATION DEGRADATION DESERTIFICATION land degradation in
Desertification The 5-D’s and the historical geography of desertification DRYLANDS DROUGHT DESICCATION DEGRADATION DESERTIFICATION land degradation in
What Factors Determine Climate?fleminges.weebly.com/.../5/24658308/13.1_reading_packet.pdf · 2020-02-01 · Explain why different parts of Earth have different climates. Explain
What Factors Determine Climate?fleminges.weebly.com/.../5/24658308/13.1_reading_packet.pdf · 2020-02-01 · Explain why different parts of Earth have different climates. Explain
Desertification Lecture
Desertification Lecture
printcode=a DO NOT EDIT--Changes must be made …fleminges.weebly.com/uploads/2/4/6/5/24658308/ch_11...the water cycle? a. evaporation b. condensation c. biomagnification d. precipitation
printcode=a DO NOT EDIT--Changes must be made …fleminges.weebly.com/uploads/2/4/6/5/24658308/ch_11...the water cycle? a. evaporation b. condensation c. biomagnification d. precipitation
DO NOT EDIT--Changes must be made through “File info ...fleminges.weebly.com/uploads/2/4/6/5/24658308/es_7.2_reading_packet.pdfmammals often feed on fish and plants in estuaries
DO NOT EDIT--Changes must be made through “File info ...fleminges.weebly.com/uploads/2/4/6/5/24658308/es_7.2_reading_packet.pdfmammals often feed on fish and plants in estuaries
Scientific Facts on Desertification - GreenFacts · Scientific Facts on Desertification Author: GreenFacts ASBL/VZW Subject: Desertification Keywords: define desertification consequences
Scientific Facts on Desertification - GreenFacts · Scientific Facts on Desertification Author: GreenFacts ASBL/VZW Subject: Desertification Keywords: define desertification consequences