mohammad ekrami; Rasool Mahdavi Najaf abadi; Marzieh Rezai; hassan vagharfard; Jalal Barkhordari
Abstract
In recent decades, among natural disasters, the frequency of agricultural drought has been higher than other natural disasters. The best way to management of agricultural drought was to management drought-stricken society. The purpose of this study was to assess the vulnerability and spatial analysis ...
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In recent decades, among natural disasters, the frequency of agricultural drought has been higher than other natural disasters. The best way to management of agricultural drought was to management drought-stricken society. The purpose of this study was to assess the vulnerability and spatial analysis of drought in Pishkuh watershed in Yazd province. the effective parameters in the vulnerability of agricultural drought in the region became information layers, and after weighting the layers in terms of the importance of agricultural drought vulnerability in the framework of multi-criteria decision making (MCDM) Agricultural drought in the study area was prepared. In order to control, monitoring and evaluation the final map, field studies of the study area were also used. The results showed that the highest weight of the effective parameters in drought vulnerability was related to the precipitation parameter, the value of which is equal to 0.31, and the lowest weight was related to the slope parameter with a value of 0.05. According to the obtained results, the most vulnerable agricultural droughts were related to Sanich, Darashir, Darasir, Eshkaft, Morok, etc. Geomorphologically, these areas were considered to be high and mountainous, more severe than plain areas due to the low depth of sediments, coarse-grained soil texture and aquatic resources (Qanats), mainly their vulnerability to drought, and In terms of time, they suffer more quickly, in other words, they suffer a lot of damage in the short term. While areas such as Islamia, Nasrabad, Mazrea Akhund, Hemmatabad , etc. were in a lower degree of agricultural drought damage. The results indicate that the degree of damage to agricultural drought estimated in the final map is in line with the findings of field studies. Therefore, the map of agricultural drought vulnerability has acceptable and desirable accuracy.
Amin Salehpour Jam; Fahimeh Rasooli; Amir Sarreshtehdari; Jamal Mosaffaie; Mohammad Kia Kianian
Abstract
People participation in the implementation of natural resources practices is one of the approeches that ensure the fulfillment of the goals and success of the projects. In this study, based on expert experience and different projects of natural resources implemented in watershed area surrounding city ...
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People participation in the implementation of natural resources practices is one of the approeches that ensure the fulfillment of the goals and success of the projects. In this study, based on expert experience and different projects of natural resources implemented in watershed area surrounding city of Tehran, the preventing social indices and sub-indices affecting on people participation were recognized and determined into three indices and 10 sub-indices. Obtained results from prioritizing effective social indices on preventing people participation in natural resources plans based on obtained weights from AHP method and expert questionary indicate that “unfavorable behaviorial indices” with weight of 0.623 and “unfavorable demographic indices” with weight of 0.130 have respectively maximum and minimum priorities, in the manner that prioritization of indices based on weights from maximum to minimum importance are “unfavorable behaviorial indices”, “cultural problems” and “unfavorable demographic indices”.Obtained results from prioritizing effective sub-indices based on expert questionary and the Kendalls' W rank test indicate that sub-indices have different roles on preventing people participation in natural resources plans, in the manner that the indices of “shortage of people trust in considering their ideas” with rank mean of 6.80 and “being low literacy and knowledge” with rank mean of 3.16 have respectively maximum and minimum priorities. The results also show that the index of “shortage of people trust” has the most priority as a preventing factor affecting on people participation, in the manner that two sub-indices of “shortage of people trust in considering their ideas” and “shortage of trust to continue projects”are two first priorities, respectively. Sub-indices of “shortage of young people in villages” from index of “unfavorable demographic indices” and also “being low or lack of culture of participation” from index of “cultural problems” were ranked as the most important social sub-indices.
