摘要
本文通过对海河流域土壤中磷及其形态含量的分析结果，计算出该流域土壤中磷的库存量为６．４２×１０￣（１０）ｋｇ。并以成土母质、人畜粪、化肥施入量和径流带入量、大气降尘及植物的残留量等因素为对土壤中磷的贡献；同时以径流的带出，大气的飘尘及植物体茎叶等因素为磷的迁出部分，计算出海河流域土体中磷的进出量分别为４．２４×１０￣８ｋｇ／ａ和３．６６×１０￣８ｋｇ／ａ，以此来研究其通量关系。
he amount of phosphorus reserved in soil in the Haihe River basin is estimated at 6. 62× 10￣(10)kg,based on a computation of the analytical results for all the species of phosphoruspresent in soil. The input of phosphorus is 4. 24 × 10￣8kg/a which was calculated from the con-tributions of earth-forming parent material . human and animal wastes applied as manure ,chemical fertilizers , surface runoff, air dust deposition and plant residues ,to the phosphorusin soil. And the output of phosphorus is 3. 66 × 10￣8kg/a which was calculated by the amountof phosphorus transfereed by surface runoff and from soil.
出处
《生态学报》
CAS
CSCD
北大核心
1994年第2期121-127,共7页
Acta Ecologica Sinica
基金
中国科学院"七.五"重大基金
