Utilizing Geo-information Tools for Mapping Spatio-temporal Changes in Population of Prosopis cineraria (khejri) in Agroforestry System of Arid Western Rajasthan
The present study is an attempt to assess the spatial variability and the changes in the population of Prosopis cineraia (khejri) trees in the agroforestry systems of arid part of western Rajasthan. This tree is regarded as an important natural resource for the rural livelihood of desert dwellers because of its multifarious uses. The tree populations were mapped in a geographical information system using available information from aerial photographs, google earth images and IRS-LISS-III satellite images to compare their populations between the past and the very recent period. Mapping carried out in a part of Nagaur district in western part of Rajasthan, indicated increase in khejri trees in the region in 2013–2014 compared to 1960s. The number and tree density were higher under irrigated croplands than under rainfed. Increase in rainfall, multiple uses of the tree, societal and scientific support are the key reasons for the observed changes in their population.
KeywordsAgroforestry Prosopis cineraria Mapping Spatio-temporal changes Aerial photographs Western Rajasthan
This article is an outcome of study undertaken by the above team under a training conducted at Central Arid Zone Research Institute, Jodhpur. The authors acknowledge the facilities provided by Director, CAZRI and the research work undertaken under CAZRI scientists. Director, NBSS & LUP, Nagpur is also thanked for deputing the scientist for the training at CAZRI, Jodhpur.
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