Abstract: To explore a rapid seed germination method for hyperaccumulator Solanum nigrum, a germination experiment with different illumination and seed-soaking treatments was conducted in constant temperature box and greenhouse, with filter as burgeon base. Under illumination, the germination rate was about 5 times high of that without illumination (P<005), indicating that illumination was one of the prerequisites for the seed germination of S. nigrum. All test seed-soaking reagents could significantly improve the germination rate of S. nigrum (P<005), with the best effect of H2O2. The seeds treated with H2O2 had the shortest germination time. The germination rate of seeds soaked but without cleaning was 2〖KG-*2〗-〖KG-*7〗3 times as high as that of seeds soaked and cleaned with water.

Key words: climate change, environmental heterogeneity, tree species distribution prediction, landscape fragmentation, sampling plot data.