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特集: 河川の自然復元　FEATURES: RIVER RESTORATION

河川管理における自然環境の保全についての基本的考え方

島谷 幸宏

建設省土木研究所
〒305-0804 つくば市旭1

Yukihiro SHIMATANI: Human impacts toward river environment and restoration goal for river management. Ecol. Civil. Eng. 2(1), 47-50, 1999.

Public Works Research Institute of MOC, 1 Asahi, Tsukuba, 305-0804, Japan

Abstract:In this paper, 7 factors of river ecosystem are categorized from the view point of human impacts referring to Karr et al. (1986). The factors are 1) energy sauce; 2) water quality; 3) habitat quality; 4) flow regime; 5) sediment transport; 6) biotic interaction; and 7) human use. Based on the review of targets of conservation and restoration of river environment, I proposed that the target of river restoration is to restore the equilibrium dynamic system to keep the function of habitat quality.

Key words: river management, restoration, habitat, equilibrium dynamic, human impacts

1999年3月4日受付, 1999年3月30日受理
e-mail: y-shima@pwri.go.jp