Paper Information

Journal:   JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)   WINTER 2016 , Volume 68 , Number 4; Page(s) 835 To 851.
 
Paper: 

COMPARING PLANT FUNCTIONAL TYPES IN THE OLD-FIELD AND A NATURAL RANGELAND VEGETATION

 
 
Author(s):  JANKJU MOHAMMAD*, NOEDOOST FARIBA, RAFIEI FAHIMEH
 
* DEPARTMENT OF RANGE AND WATERSHED MANAGEMENT, FERDOWSI UNIVERSITY OF MASHHAD, I.R. IRAN
 
Abstract: 

This research was conducted to compare plant functional types (PFT) and traits in an old-field (abandoned for 28 years) and a control site, in the Baharkish rangelands, Quchan, Iran. In the both sites, 40 randomized quadrates were established. Floristic list, frequency, canopy cover and 20 vegetative, phenological and morphological plant traits were measured for all plant species, within each quadrate. According to the Pearson correlation analysis, and by using R software, 9 plant traits including life form, plant canopy, reproduction mode, reserve organ, root type, leaf phenology, growth form, life cycle, and regeneration mode, were known as the major plant functional traits. Data classification and ordination were applied on a matrix of 9 traits ×112 species, by using CANOCO and TWINSPAN softwares. It led to identification of 5 plant functional types. Total canopy cover of two PFT was significantly (70%) reduced and that of three PFT’s were relatively (10-20%) increased in the abandoned field. In conclusions, plants being annual, therophyte, geophytes, and rhizomatus are tolerant, whereas those being perennial (phaneropyte, chemaphyte, hemicryptophyte), having tap root system, and wide canopy cover are known as sensitive to ploughing disturbance.

 
Keyword(s): BAHARKISH, GRASSLAND, OLD-FIELD, PHYSICAL DISTURBANCE, PLANT FUNCTIONAL TRAIT
 
References: 
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