USE OF THE SCUAF MODEL TO SIMULATE NATURAL MIOMBO WOODLAND AND MAIZE MONOCULTURE ECOSYSTEMS IN ZIMBABWE

被引：14

作者：

VERMEULEN, SJ

WOOMER, P

CAMPBELL, BM

KAMUKONDIWA, W

SWIFT, MJ

FROST, PGH

CHIVAURA, C

MURWIRA, HK

MUTAMBANENGWE, F

NYATHI, P

机构：

[1] Department of Biological Sciences, University of Zimbabwe, Harare

[2] Tropical Soil Biology and Fertility Programme, UNESCO-ROSTA, Nairobi

[3] International Institute of Tropical Agriculture, Ibadan

[4] Department of Research and Specialist Services, Ministry of Agriculture

来源：

AGROFORESTRY SYSTEMS | 1993年 / 22卷 / 03期

关键词：

SCUAF; COMPUTER MODEL; SOIL CARBON; SOIL NITROGEN; MIOMBO; MAIZE;

D O I：

10.1007/BF00705238

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

'Soil Changes Under Agroforestry' (SCUAF), a computer model designed lo predict changes in erosion, soil carbon and soil nitrogen over time within various agroforestry systems and climatic regimes, was assessed using input data from an undisturbed miombo woodland and an adjacent maize field in Zimbabwe. Predicted changes in soil carbon were in a realistic range for both miombo and maize treatments. However, the accuracy of the model may be a reflection of the detail required in its initialisation. Several problematic relationships were found within the model, in particular inconsistent patterns between nitrogen uptake and plant productivity under complex fertilisation simulations and a lack of attenuation of productivity in the simulation of miombo woodland as it approached maturity.

引用

页码：259 / 271

页数：13

共 14 条

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