期刊论文

中文

山地学报

1008-2786

1990

8

3

191-197

本校为第一机构

鄂西山区耕地面积8640平方公里。区内现行耕作制度,在海拔500—1200米处以一年两熟制为主,海拔1200米以上处是一年一熟制。全区一熟制面积占耕地面积的15％,耕作复种指数180—195％。随着区内商品经济的进一步发展,对现存耕作制度要加以调整:1.加强精耕细作,提高粮食单产,调整农业经济结构;2.合理布局作物,优化种植业结构;3.实行科学种田,使耕作制度的变革不断深化。

The mountainous region of West Hubei is located between 29°07′-33°20′N and 103°37′-112°09′ E. It is not only and important productive base of forestry cimmodity of Hubei Province, but also a growing area of wheat, corn, potato, rice, rapeseed and tobacco etc, grain and economic cropsThe formation basis of cropping system in the mountainous region of West,Hubei is that the slope land covers much more area than plane land,dry land account for 74% of the total arable land area in this region,and the climatic differentiation is obvious.The ...