Water management and productivity in planted forests
نویسندگان
چکیده
منابع مشابه
Sustaining the Productivity of Planted Forests
Conversion of natural forests to plantations, particularly in the tropics, has drawn global attention and concern. Moreover, plantation forestry is on the rise, especially in tropical and sub-tropical regions where growth rates are rapid. Even in the United States where even-age silviculture is being de-emphasized on public land (only about 15Oh of all plantings in recent years), the area in ne...
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Aim Little is known about the performance of plantations relative to natural forests of the same climate zone and age. China has more plantations than any other country as a consequence of massive afforestation efforts. We use data from China to comparatively examine tree biomass and productivity of planted and natural stands in relation to climate zone, latitude, elevation, age and species div...
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McKeand, S.E. & Bridgewater, F.E. 1993. Provenance and family variation for juvenile growth characteristics of Pinus taeda L. and the impact on early selection for growth. In Management of structure and productivity of boreal and subalpine forests (ed. S. Linder & S. Kellomaki). Stzrdin Forestalia Suecica 191. 94 pp. ISSN 0039-3150, ISBN 91-576-4822-0. Stem elongation in first-and second-year L...
متن کاملConsideration of Water Productivity for Farm Water Management in Different Conditions of Water Availability for Dominant Summer Crops
ABSTRACT- Efficient use of irrigation water for summer crops should be considered seriously due to rare occurrence of precipitation in summer. This research was focused on the assessment of water use efficiency for dominant crops of summer cropping pattern in the study area (i.e., maize and rice) via considering water productivity (WP) with different water management scenarios at farm level at ...
متن کاملSimultaneous Optimization of Water Usage Efficiency and Yield of Cucumber Planted in a Columnar Aeroponic System
The development of aeroponic cultivation technology has led to more efficient use of water and plant nutrients for producing high quality agricultural commodities. In this research, cucumbers were grown in columnar aeroponic systems for nine weeks and the effect of spraying rate and spraying duration on the cucumber average yield and water usage efficiency were investigated. The experiments wer...
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ژورنال
عنوان ژورنال: Proceedings of the International Association of Hydrological Sciences
سال: 2014
ISSN: 2199-899X
DOI: 10.5194/piahs-364-82-2014