Soil　contamination　by　heavy　metals　presents　substantial　ecological　and　geotechnical　risks,　thereby　demanding　sustainable　remediation　strategies.　Conventional　approaches,　including　chemical　stabilization　and　microbial-induced　carbonate　precipitation　(MICP),　are　limited　by　high　costs,　ecological　disturbances,　and　sensitivity　to　environmental　stressors.　A　plant-derived　urease-driven　enzyme-induced　carbonate　precipitation　(EICP)　system　was　evaluated　for　immobilizing　cadmium　(Cd2(+)),　lead　(Pb2(+)),　and　zinc　(Zn2(+))　in　contaminated　soils.　Systematic　screening　revealed　that　jack　bean　and　watermelon　seed　ureases　are　optimal　catalysts　for　heavy　metal　sequestration,　achieving　efficiencies　of　87.3%　for　Cd2　(+)　,　91.5%　for　Pb2　(+)　,　and　76.4%　for　Zn2　(+)　.　These　high　efficiencies　are　attributed　to　their　catalytic　specificity　and　the　retained　enzymatic　activity　under　environmental　stress.　Critical　process　parameters　were　fine-tuned　through　iterative　experimentation,　maintaining　a　urea-CaCl2　reaction　stoichiometry　of　1.5:1　molar　ratio　and　calibrating　the　enzyme　dosage　to　1.2　U/g　of　soil　matrix.　This　optimized　operational　range　effectively　promoted　carbonate　mineralization　while　preserving　essential　soil　hydraulic　properties,　as　evidenced　by　sustained　permeability　exceeding　10　(-)　(5)　cm/s　throughout　precipitation　cycles.　Durability　assessments　under　simulated　acid　rain　and　freeze-thaw　cycles　demonstrated　82.5%　retention　of　Cd2(+)　and　92.7%　retention　of　unconfined　compressive　strength,　outperforming　conventional　lime　and　MICP　treatments.　X-ray　diffraction　analysis　confirmed　the　presence　of　stable　crystalline　phases.　Field　validation　confirmed　that　the　EICP　protocol　can　be　feasibly　scaled　to　real-world　sites　with　operational　costs　averaging　$52　per　cubic　meter,　representing　a　61%　reduction　compared　to　microbial-based　treatments.　This　plant-based　EICP　approach　offers　a　scalable　and　cost-effective　solution　for　ecological　restoration　and　geotechnical　stabilization　in　contaminated　soils,　demonstrating　significant　potential　for　sustainable　environmental　management.