Research Aim:
-
Investigation of pasture degradation in Tajikistan
-
Study of the effects of nitrogen deposition on the structure and functioning of pasture ecosystems at different altitudes
-
Assessment of the dynamics and productivity of various pasture types in Tajikistan
Field investigations conducted at permanent monitoring sites
Study Area
|
Site |
Alt. (m) |
Aspects |
Slope |
|
TQ |
650 |
341 |
19◦ |
|
BK |
1100 |
263 |
29◦ |
|
LB |
1250 |
264 |
23◦ |
|
ZD |
2000 |
9 |
24◦ |
Study Outcomes
- N significantly increased aboveground biomass, confirming the primary limiting nutrient, while P enhanced productivity mainly when combined with N, especially at high elevations.
- Precipitation strengthened fertilization effects by increasing biomass and species richness but reduced community evenness.
- Temperature had little effect on biomass but strongly influenced biodiversity patterns.
- Overall, moderate and climate-adaptive N and N+P management is essential to improve productivity while maintaining ecosystem resilience.
