EFFECTS OF IRRIGATION ON SEED PRODUCTION AND VEGETATIVE CHARACTERISTICS OF 4 MOIST-SOIL PLANTS ON IMPOUNDED WETLANDS IN CALIFORNIA

被引：6

作者：

MUSHET, DM

EULISS, NH

HARRIS, SW

机构：

[1] U.S. Fish and Wildlife Service, Northern Prairie Wildlife Research Center, Dixon, 95620, California

[2] U.S. Fish and Wildlife Service, Northern Prairie Wildlife Research Center, Jamestown, 58401-9736, North Dakota

[3] Department of Wildlife, Humboldt State University, Arcata, 95521, California

来源：

WETLANDS | 1992年 / 12卷 / 03期

关键词：

CALIFORNIA; GRASSES; HYDROPHYTES; IRRIGATION; MOIST-SOIL MANAGEMENT; SEED PRODUCTION; WETLANDS;

D O I：

10.1007/BF03160610

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

We examined the effects of irrigation on 4 moist-soil plants commonly managed for waterfowl in the Sacramento Valley, California. Irrigation resulted in taller and heavier swamp timothy (Heleochloa schoenoides), pricklegrass (Crypsis niliaca), and sprangletop (Leptochloa fasicularis). Barnyardgrass (Echinochloa crusgalli) grew taller in irrigated wetlands, but no significant difference in weight was detected. Only sprangletop yielded larger seed masses in response to irrigation. Without irrigation, swamp timothy and pricklegrass assumed a typical prostrate growth form, but with irrigation, they assumed a vertical growth form. Irrigation did not significantly affect plant density. Because of rising water costs, wetland managers should consider wildlife management objectives and plant responses before implementing irrigation practices.

引用

页码：204 / 207

页数：4

共 12 条

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