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为了进一步贯彻毛主席“绿化祖国”、“实行大地园林化”的伟大号召,几年来我们通过科学试验和造林生产实践,总结了河北省渤海沿岸盐碱地改良方法,摸清了常用造林树种的抗盐能力及其对土壤碱化的反应,为盐碱地造林提供了科学依据。一、自然条件及研究方法自然条件;河北省滨海盐碱地年平均气温12℃,年降水量600多毫米,春季干旱多风,全年大风日数达40天;海拔高2—3米,地下水位1.5米左右;土质较粘重,大多数有碳酸盐反应,土壤含盐量60厘米土体内为0.4174—1.6211％,0—10厘米表层土含盐量为
In order to further implement Chairman Mao’s great call for “greening the motherland,” and implementing “the practice of the earth garden”, in recent years we have adopted the scientific experiments and afforestation production practices to summarize the improved methods of saline-alkali soil in the coast of Bohai in Hebei Province and found out the salt- The ability and its response to soil alkalization provide a scientific basis for silviculture. First, the natural conditions and natural conditions of research methods; coastal saline-alkali land in Hebei Province, the annual average temperature of 12 ℃, the annual rainfall of more than 600 mm, spring drought windy, the annual number of windy days up to 40 days; 2-3 meters above sea level, groundwater level 1.5 M; soil is more sticky, most of them have carbonate reaction, soil salt content of 60 cm soil is 0.4174-1.6211%, 0-10 cm surface soil salt content is