Download pdf - Soil Compaction - FAO

Transcript
Page 1: Soil Compaction - FAO

SOU

RC

E: STAT

US O

F TH

E W

OR

LD’S SO

IL RE

SOU

RC

ES - M

AIN

RE

PO

RT

Soil compactionIncrease in density and a declineof macro-porosity in soil that impairssoil functions and impedes root penetration and water and gas exchange.

Soil compaction can reduce crop yieldsby as much as 60%.Agricultural mismanagement (80%)and overgrazing (16%) are the two major causative factors of human induced soil compaction.

4% of theglobal land area

is estimatedto be compacted

MINIMUM-TILLAGE AGRICULTUREIS AMONG THE TOP OPTIONS TO REDUCE TILLAGE COSTS, CONSERVE SOIL AND WATER,INCREASE SOIL ORGANIC CARBON POOLS,AND REDUCE NET CO2 EMISSIONS

2016

Page 2: Soil Compaction - FAO

SOIL THREATSSoil compaction

LACLatin America

and the Caribbean

NANorthAmerica

SSAsub-Saharan Africa

NENANear East and

North Africa

E Europe and Eurasia

SPSouthwest

Pacific

AAsia

GoodFairPoorVerypoor

Condition TrendImproving Deteriorating Variable Stable ©

FAO

, 201

6 -

I64

73EN

/1/1

1.16