Abstract: During the last decade, possibilities to realize new phenomena and create new applications by varying system properties in time have gained increasing attention in many research fields.

针对印度北方邦卡利亚尼河因淤塞和阻塞导致的洪涝及生态退化问题，研究人员综合运用地理空间技术、HEC-RAS（Hydrologic Engineering Centers-River Analysis System）模型及实地验证，开展了河流修复研究。结果表明，需在Nindora区块开挖约22.37 km、两区块共清理47.28 km河道 ...