赣江流域山丘荒地的形成、危害和开发途径

赣江流域的山丘荒地总面积约为 2902×10⁴亩,除 35×10⁴亩属于“十边草地”零星分布于路边、河边、田边、村边、沟边之外,比较成片的约有 2867×10⁴亩（见表 1）,略多于现有耕地,而且相当于现有林地的一半。这些荒地 3/4以上分布在红壤丘陵（低丘岗地 388×10⁴亩,占13.5％;中低丘1236×10⁴亩,占43.1％;高丘605×10⁴亩,占21.2％;山地638×10⁴亩,占22.3％）,而且主要分于于上、中游地区（上游地区占60.2％,中游地区占25.4％,下游地区占14.4％）。综合开发治理、合理利用这些山丘荒地,是赣江流域、特别是上、中游地区的农民摆脱贫穷落后困境、实现小康目标的重要环节之一。

FORMATION, HAZARD AND EXPLOITATION OF THE HILLY WASTELANDS IN THE GANJIANG RIVER CATCHMENT

There are about 2902×10⁴ mu hilly wastelands in the Ganjiang River catchment. Of them, 2867 ×10⁴ mu stretch out continuously. The other 35×10⁴mu scatter as small plots (mainly on roadsides, banksides, ditchsiles and so on). The total area of the wastelands accounts for half of the area of the current woodlands, being slightly larger than the area of the current caltivated land. Three-fourths of the wastelands are distributed in red soil hilly ari'as (low hills 388×10⁴mu, accounting for 13.5%; middle hills 1236 ×10⁴ mu, 43.1%; high hills 605×10⁴ mu, 21%; and moutainous areas 638×10⁴mu, 22.3%). Most of them are distributed in the upper and midde reaches of the Garjiang River (upper reaches 60.2%, middle reaches 25.4%, lower reaches 14.4%).Exploiting and controlling these wastelands comprehensivly and utilizing them rationally are the most important keys for the peasants living in the upper and middle reaches to escape from poverty and become well-to-do.