Modelling vegetation interactions with channel flow in river valleys of the Mediterranean region

被引：32

作者：

Brookes, CJ ^{[1
]}

Hooke, JM ^{[1
]}

Mant, J ^{[1
]}

机构：

[1] Univ Portsmouth, Dept Geog, Portsmouth PO1 3HE, Hants, England

来源：

CATENA | 2000年 / 40卷 / 01期

关键词：

desertification; river; flood; erosion; deposition; vegetation; channel change; model; simulation;

D O I：

10.1016/S0341-8162(99)00065-X

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Flooding and erosion an major hazards in semi-arid areas. As a result of climate and/or land use changes these hazards could increase. Vulnerable areas include the Mediterranean region of southern Europe. As part of the European Union (EU)-funded MEDALUS (Mediterranean Desertification and Land Use) research programme on impacts of desertification a model to simulate channel changes is being developed. This is designed to simulate morphological changes in the channels and floodplains of ephemerally flowing streams over time scales of a year to decades. It incorporates morphological, sedimentological and vegetation characteristics and simulates the effects of flood events and of climate and human activities for reaches of valley floor. In this paper the selection of characteristics and processes in the vegetation component of the model is discussed. The effects of vegetation upon flow, erosion and deposition processes and the feedback of flow, sediment and moisture on vegetation are identified. The conceptualisation of the model is outlined then the problems and strategies for parameterisation are indicated. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：93 / 118

页数：26

共 98 条

[11] PLAINS COTTONWOOD RECRUITMENT AND SURVIVAL ON A PRAIRIE MEANDERING RIVER FLOODPLAIN, MILK RIVER, SOUTHERN ALBERTA AND NORTHERN MONTANA [J].

BRADLEY, CE ;

SMITH, DG .

CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 1986, 64 (07) :1433-1442

[12]

BULLARD JE, 1997, ARID ZONE GEOMORPHOL, P109

[13]

CAMMERAAT LH, 1998, ATLAS MEDITERRANEAN, P56

[14]

CATTO NR, 1985, CAN J EARTH SCI, V221, P552

[15]

CLARK SC, 1998, ATLAS MEDITERRANEAN, P44

[16]

COPELAND OL, 1965, 970 USDA AGR RES SER, P72

[17]

Culler R.C., 1982, Evapotranspiration before and after Clearing Phreatophytes, Gila River Flood Plain, Graham County, Arizona

[18] DYNAMICS OF ROOT-GROWTH AND DECAY IN 2 GRASSES NATIVE TO SEMI-ARID ARGENTINA [J].

DISTEL, RA ;

FERNANDEZ, OA .

AUSTRALIAN JOURNAL OF ECOLOGY, 1988, 13 (03) :327-336

[19]

DOMINGO F, 1991, IAHS PUBL, V204

[20]

Dunkerley D. L., 1993, AUSTR GEOGRAPHICAL S, V31, P141, DOI [DOI 10.1111/J.1467-8470.1993.TB00411.X, 10.1111/j.1467-8470.1993.tb00411.x]

← 1 2 3 4 5 6 7 8 9 10 →