共 50 条
- [32] STREAM WATER-QUALITY AS INFLUENCED BY BEAVER WITHIN GRAZING SYSTEMS IN WYOMING JOURNAL OF RANGE MANAGEMENT, 1984, 37 (02): : 142 - 146
- [33] WATER-QUALITY OF SMALL STREAMS FROM FORESTED AND AGRICULTURAL WATERSHEDS FORSTWISSENSCHAFTLICHES CENTRALBLATT, 1980, 99 (02): : 101 - 109
- [34] STATUTORY WATER-QUALITY OBJECTIVES AND RIVER WATER-QUALITY JOURNAL OF THE INSTITUTION OF WATER AND ENVIRONMENTAL MANAGEMENT, 1993, 7 (05): : 556 - 563
- [35] AGRICULTURAL PESTICIDES AND WATER-QUALITY - OCCURRENCE, SIGNIFICANCE, SOURCE AND RESPONSE ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1993, 206 : 117 - AGRO