نتایج جستجو برای: chronosequence
تعداد نتایج: 759 فیلتر نتایج به سال:
The intensive use of land has accelerated the loss soil quality, a process that can be avoided by adopting conservationist production systems, such as Integrated Crop-Livestock-Forest (CLFI system). It is noteworthy in Southwest State Maranhão substantial portion soils rural properties are degraded and distinct stages erosion, since they have been exploited for decades with non-properly managed...
High-latitude regions store large amounts of organic carbon (OC) in active-layer soils and permafrost, accounting for nearly half of the global belowground OC pool. In the boreal region, recent warming has promoted changes in the fire regime, which may exacerbate rates of permafrost thaw and alter soil OC dynamics in both organic and mineral soil. We examined how interactions between fire and p...
We measured net atmospheric exchanges of energy and water vapor using eddy covariance along a chronosequence of Pinus elliottii plantations in north Florida: a recent clear-cut, a mid-rotation stand, and a 24-year-old, rotation-aged stand. Reflected energy averaged 0.26 of incoming solar radiation at the clear-cut and 0.18 at the closed-canopy stands. The sum of sensible (S), latent (LE) and so...
Forest successional processes following disturbance take decades to play out, even in tropical forests. Nonetheless, records of vegetation change in this ecosystem are scarce, increasing the importance of the chronosequence approach to study forest recovery. However, this approach requires accurate dating of secondary forests, which until now was a difficult and/or expensive task. Cecropia is a...
A no-till chronosequence study was conducted to assess the impact of continuous (NT) on greenhouse gases (CO2, CH4 and N2O) emission global warming potential (GWP) agroecosystems. Five paired sites in Central Ohio (USA) under plow till (PT) NT for 9, 13, 36, 48 49 years were selected, GHG fluxes measured over a 2-year period. Nearby deciduous forests included comparative purposes. Results showe...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید