宁南县荒地的合理开发试点

A TRIAL OF RATIONAL EXPLOITATION OF WASTELAND IN NINGNAN COUNTY

本县人多耕地少,每年又增加人口10‰以内,减少耕地0.1万亩,而县内可垦为耕地的荒地面积13.7万亩。为增加耕地面积,解决人地矛盾,开发荒地资源是一种途径。开发中要讲究合理性。方式宜采取先试点,再推广,点面结合。1987年选定荒地开发试点三个。在采取一系列措施后,1989年已取得明显经济、社会、生态效益。

In Ningnan County, the population is more and the land area is not vast relatively (per capita has land 0. 08ha). In recent years, the total population of the county increases 10‰ in a year. The cultivated area which has been occupied and destroyed is 0. 6km2/a. The contradictory between the man and the land is very sharp.Nevertheless, the wasteland area in the county is 333km2, among them the cultivable land is 91km2.It is a imporant way to exploit the wasteland resource in order to spread the cultivated area and to solve the contradictory between the man and the land. Exploitation of wasteland should stress rationality-that is to improve the ecologic environment and gain the economic effects. The wayts are:to make the experiments in some place at first and then to promote the work in all places with the experience gained in experimental point.In 1987, three experimental points (two points were on the west slope of the Jinsha River and one was on the valley slope of the Heishui River) for exploiting wasteland were choosed in the county. The elevation is at 600-1,400m. The regional forest cover rate is 20-50%. The sunshine and heat conditions are favourable. The region is three crops a year and suits for growing of grain crops and sugarcane. The way is to exploit stretch by stretch.In the end of 1989, the three points exploited land of 210ha,and grain output is 59×10~4kg and sugarcane is 7285t. The total output value is 15×10~5 yuan.The measures in the experimental regions are: to strengthen management and promote advanced technique and to take preferential policy,I, e. 1. the government gives free economic aid; 2. the exploiters can exempt from taxation in 15 years and have the right of use for exploited land.