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Desire for Greener Land

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Classification<br />

<strong>Land</strong> use problems: Insufficient technical help and interest to agriculture problems by government, urbanization pressure, land<br />

fragmentation, monoculture in dry farming areas, insufficient irrigation and rainfall, overgrazing, false cultivation techniques.<br />

<strong>Land</strong> use Climate Degradation Conservation measure<br />

annual<br />

cropping<br />

(rainfed, partly<br />

supplementary<br />

irrigation)<br />

Stage of intervention<br />

Prevention<br />

Mitigation / Reduction<br />

Rehabilitation<br />

Soil depth (cm)<br />

0-20<br />

20-50<br />

50-80<br />

80-120<br />

>120<br />

semi-arid,<br />

temperate<br />

Origin<br />

chemical soil<br />

deterioration:<br />

fertility decline<br />

and reduced<br />

organic matter<br />

content<br />

<strong>Land</strong> user's initiative (>50 years ago)<br />

Experiments / research<br />

Externally introduced<br />

Main causes of land degradation:<br />

Direct causes - Human induced: crop management (annual, perennial, tree/shrub)<br />

Indirect causes: land tenure, governance / institutional<br />

Main technical functions:<br />

- improvement of ground cover<br />

Environment<br />

Natural Environment<br />

Average annual rainfall<br />

(mm)<br />

> 4000<br />

3000-4000<br />

2000-3000<br />

1500-2000<br />

1000-1500<br />

750-1000<br />

500-750<br />

250-500<br />

< 250<br />

Growing season(s): 180 days (Nov – Apr)<br />

Soil texture: mainly medium (loam), partly coarse<br />

(sandy) and fine (clay)<br />

Soil fertility: medium<br />

Topsoil organic matter: low ( 4000<br />

3000-4000<br />

2500-3000<br />

2000-2500<br />

1500-2000<br />

1000-1500<br />

500-1000<br />

100-500<br />

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