Abstract
In this study, to investigate the effects of runoff harvesting on soil properties in the semiarid forest, runoff harvesting through semi-circular bund was considered as a method to conserve soil and thereby combat tree mortality. In order to evaluate this hypothesis, runoff was harvested through the semi-circular bund affecting soil quality and moisture storage. The selected forest site is located in Kalehzard, Kermanshah, in Zagros region of western Iran. The experiment was a randomized complete block design with four treatment plots: bund with protection, protection treatment, bund without protection and control treatment. The results showed that the mean values of soil organic carbon in the bund with protection, protection treatment, bund without protection and control treatment were 2.35, 2.40, 1.90, and 1.80%, respectively, indicating no significant difference among them in the first year, while there were significant (p> 0.05) increases in the bund with protection and protection treatment after three years. Furthermore, coarse and very coarse soil aggregates increased significantly in the bund with protection treatment. This treatment also attributed to significant reduction in soil bulk density from 1.46 (in the first year) to 1.32 (in the third year), which enhanced soil moisture content. Finally it was found that bunds with protection significantly curtail dieback and adverse re-growing of stands due to the coupled effects of bund building and protection to curtail forest mortality in the semi-arid regions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Soil organic carbon did not significantly differ among four treatments in year one.
- Treatment
- bund with protection, protection treatment, bund without protection and control treatmente0
- Outcome
- soil organic carbone0
- Direction
- no significant differencee0
- Value
- 2.35, 2.40, 1.90, and 1.80%e0
- Comparator
- control treatmente0
Not reportedTaxon
Verbatim
e0“soil organic carbon in the bund with protection, protection treatment, bund without protection and control treatment were 2.35, 2.40, 1.90, and 1.80%, respectively, indicating no significant difference among them in the first year”
t0“the semiarid forest”
Claim · model-written summary
Soil organic carbon increased in bund with protection and protection treatments after three years, with inconsistent reported significance notation.
- Treatment
- bund with protection and protection treatmente0
- Outcome
- soil organic carbone1
- Direction
- increasese0
- Qualifier
- after three yearse0
Not reportedTaxonComparator
Verbatim
e0“significant (p> 0.05) increases in the bund with protection and protection treatment after three years”
e1“soil organic carbon”
Claim · model-written summary
Bund with protection significantly increased coarse and very coarse soil aggregates.
- Treatment
- bund with protection treatmente0
- Outcome
- coarse and very coarse soil aggregatese0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“coarse and very coarse soil aggregates increased significantly in the bund with protection treatment”
Claim · model-written summary
Bund with protection reduced soil bulk density from 1.46 to 1.32 by year three.
- Treatment
- This treatmente0
- Outcome
- soil bulk densitye0
- Direction
- reductione0
- Value
- 1.32e0
- Qualifier
- 1.46e0
- Comparator
- in the first yeare0
Not reportedTaxon
Verbatim
e0“This treatment also attributed to significant reduction in soil bulk density from 1.46 (in the first year) to 1.32 (in the third year)”
Claim · model-written summary
Reduced soil bulk density enhanced soil moisture content.
Not reportedTaxon
Verbatim
e0“significant reduction in soil bulk density from 1.46 (in the first year) to 1.32 (in the third year), which enhanced soil moisture content”
Claim · model-written summary
Bunds with protection significantly curtailed forest stand dieback and adverse regrowth.
- Treatment
- bunds with protectione0
- Outcome
- dieback and adverse re-growing of standse0
- Direction
- curtaile0
- Setting
- semi-arid regionse0
Not reportedTaxonComparator
Verbatim
e0“bunds with protection significantly curtail dieback and adverse re-growing of stands due to the coupled effects of bund building and protection to curtail forest mortality in the semi-arid regions”