Purpose The validity of soil erosion data is often questioned because of the variation between replicates. This paper aims to evaluate the relevance of interreplicate variability to soil and soil organic carbon (SOC) erosion over prolonged rainfall. Materials and methods Two silty loams were subjected to simulated rainfall of 30 mm h−1 for 360 min. The entire rainfall event was repeated ten times to enable statistical analysis of the variability of the runoff and soil erosion rates. Results and discussion The results show that, as selective removal of depositional particles and crust formation progressively stabilized the soil surface, the interreplicate variability of runoff and soil erosion rates declined considerably over rainfall time. Yet, even after the maximum runoff and erosion rates were reached, the interreplicate variability still remained between 15 and 39 %, indicating the existence of significant inherent variability in soil erosion experiments. Conclusions Great caution must be paid when applying soil and SOC erosion data after averaging from a small number of replicates. While not readily applicable to other soil types or rainfall conditions, the great interreplicate variability observed in this study suggests that a large number of replicates is highly recommended to ensure the validity of average values, especially when extrapolating them to assess soil and SOC erosion risk in the field.
from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2iSPRIF
via IFTTT
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δημοφιλείς αναρτήσεις
-
A two-arm multicenter phase II trial of one cycle chemoselection split-dose docetaxel, cisplatin and 5-fluorouracil (TPF) induction che...
-
from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2jCvX3K via IFTTT
-
Dental implants are now broadly used to replace missing teeth, and the presence of infectious complications is rising. Dental implant therap...
-
Indications and extent of central neck dissection for papillary thyroid cancer: An American Head and Neck Society Consensus Statement. ...
-
Abstract Purpose Accurate and real-time prediction of the lung and lung tumor deformation during respiration are important consideration...
-
Abstract Purpose of Review Our goal is to summarize the airway disease literature since September 11, 2001 (9/11), focusing on studies pub...
-
Treatment effectiveness holds considerable importance in the association between service quality and satisfaction in medical service studies...
-
Therapeutic agents designed to stimulate the immune system are now cornerstones in the treatment of metastatic melanoma. These drugs promote...
-
Coenzyme Q (CoQ) is a key component of the mitochondrial respiratory chain, but it also has several other functions in the cellular metaboli...
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου