The major observation items are the effect of the belt to the small range climate of the farmland, drainage and soil improving functions of the belt.

主要观测护田林带对农田小气候的影响、林带的排水作用以及改土效果。

youdao

Organic matter is invaluable as an addition to any soil whether applied as manure as a cover crop or as a soil-improving crop.

有机物施加于任何土壤都是很宝贵的，不管施加的是厩肥、覆盖作物或是改土作物。

youdao

Farmers plant a warm-season perennial grass and fallow the field for two years, improving soil quality and water-holding capacity.

FORBES: New Technology Reduces Agricultural Water Consumption

As I documented in my October column, African deserts are receding, soil moisture is improving and crop production is dramatically increasing.

FORBES: Despite What You Hear, Global Warming Is Still Benefiting Africa

In response, I presented powerful evidence that African deserts are actually shrinking, soil moisture is improving, and crop production is dramatically increasing.

FORBES: Despite What You Hear, Global Warming Is Still Benefiting Africa