HABITATS OCCUPIED BY SCENTLESS CHAMOMILE (MATRICARIA-PERFORATA MERAT) IN SASKATCHEWAN

被引：15

作者：

BOWES, GG ^{[1
]}

SPURR, DT ^{[1
]}

THOMAS, AG ^{[1
]}

PESCHKEN, DP ^{[1
]}

DOUGLAS, DW ^{[1
]}

机构：

[1] AGR CANADA,RES STN,SASKATOON S7N 0X2,SK,CANADA

来源：

CANADIAN JOURNAL OF PLANT SCIENCE | 1994年 / 74卷 / 02期

关键词：

SCENTLESS CHAMOMILE; MATRICARIA PERFORATA; HABITAT;

D O I：

10.4141/cjps94-073

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Three agricultural regions in Saskatchewan, known to be affected by scentless chamomile (Matricaria perforata Merat), were surveyed between 1984 and 1988 to measure abundance and identify habitats occupied by the weed. A modified cover-abundance rating scale was used to rate the ground cover of the weed in various habitats. The habitats were grouped into annual crops, field depressions, transition areas and slough margins. Overall, the predicted probability of an area being free of scentless chamomile decreased in the following order of habitats: annual crops, transition areas, field depressions and slough margins. Three of these habitats, annual crop, field depressions and slough margins, occur along a gradient of increasing soil moisture and decreasing farm use.

引用

页码：383 / 386

页数：4

共 15 条

[1] TUTORIAL ON MODELING ORDERED CATEGORICAL RESPONSE DATA [J].