Quite a few pilot research projects have been carried out.on demonstrating new silviculture techniques for re-vegetation in DHV, but there still exist great difficulties in carrying out large-scale afforestation engineering.
Quite a few pilot research projects have been carried out.on demonstrating new silviculture techniques for re-vegetation in DHV, but there still exist great difficulties in carrying out large-scale afforestation engineering.
目前已经开展了一系列的有关造林技术的前期研究项目，但大规模的造林培育工程尚难以开展。