Evaluation of causes and effects of environmental shifts in the Lower Digaru River Basin, Assam, India
نویسندگان
چکیده
Environmental issues like deforestation, biodiversity loss, soil erosion, siltation, wetland shrinkage, river bank etc. in drainage basin perspectives today are a rapid flux triggered by population growth and developmental activities. Focusing on the Lower Digaru River of North-East India,the present study investigates changes theLand Use / Land Cover (LULC)trend using geospatial techniques cause-effect relationship identifying various environmental operating within area. The area has been classified into nine LULC classes: dense forest, openforest, scrub fallow land, barren cropland, scrub, mixed built-up water body. results revealed that under forest drastically declined from 60.25 % to 16.63 during 1999-2020. In contrast, other important categories Mix land (8.11 14.05 %), (2.1 25.11 (0.2 6.63 %) open (11.9 18.34 show an increasing trend change said period. Post-classification comparison images based transition matrix indicated approximately 40 total had converted followed 25.09 and, most significantly, 5.22 mix 1999 -2020. Increasing pressure economic activities establishment brick industries, coke sand mining were major driving forces for such changes. implications alteration human occupation economy, etc., area’s prime concern. findings suggest integrated watershed management use planning should be implemented Basin.
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ژورنال
عنوان ژورنال: Ecocycles
سال: 2023
ISSN: ['2416-2140']
DOI: https://doi.org/10.19040/ecocycles.v9i2.336