热带亚热带退化生态系统的恢复与复合农林业

我国热带亚热带是人口和环境压力最大的区域之一。原有自然生态系统遭到很大的破坏,退化生态系统大面积增加,这是严重制约农业生产发展的重要因素。长期的恢复生态学定点研究表明,通过综合整治,使退化生态系统得以恢复与重建,具有重大的生态效益、经济效益和社会效益。在丘陵山区进行退化生态系统的恢复与重建实践中所构建的“林果草(牧)鱼”复合生态系统,是高产、高质、高效的复合农林业模式,是促进地方农业经济发展的有效途径。

Restoration of degraded ecosystem and agroforestry in tropics and subtropics.

The tropics and subtropics in China are the regions most seriously stressed by human population and environment. The destruction of natural ecosystems and the increasing area of degraded ecosystems are the key factors limiting the development of agriculture. A long term study on restoration ecology shows that integrated management has a great ecological, economic and social effect on the restoration and reconstruction of degraded ecosystems. The forest fruit herbage grazing fish complex ecosystem stemmed from the practice of restoration and reconstruction of degraded ecosystems is an agroforestry model with high yield, high quality and high efficiency in hilly areas, and an efficient approach to enhance the development of local agricultural economy.