摘要
本文研究了黄河三角洲盐荒地改良和利用的生物学对策,其对策是迅速增加绿色植被,保护现有植被,恢复生态平衡,减少土壤蒸发,以植物蒸腾取代土壤蒸发。迅速增加绿色植被最有效的措施是大量种植经济盐生和耐盐植物,通过实验证明这是一种用费少,见效快的简单易行的措施。种植经济盐生和耐盐植物后,不但使土壤盐分降低,而且可增加有机质和矿质元素N、P、K,还具有一定的经济效益和生态效益。
The paper studies the biological strategies of improvement and utilization of salt
wasteland in Yellow River Delta. The strategies are to increase the green plant cover, protect
the existing plant cover, restore ecological equilibrium, decrease the soil evaoporation and
replace it by plant transpiration. The most effective measure for green plant cover increase is
to sow economic halophytes and salt tolerant plants. It has been proved by experiments that
this is a simple and easy measure with less cost and immediate effect. After the sowing of
halophytes and salt tolerant plants, the soil salt content will be decreased while the organic
substances and mineral elements (N、P、K) will be increased thus producing certain economic
and ecological benefits.
出处
《中国人口·资源与环境》
CSSCI
1992年第2期55-58,共4页
China Population,Resources and Environment
