%0 Journal Article
%T RESEARCH OF THE SOIL SALT CONTENT DISTRIBUTION AND MANAGEMENT IN HUANG-HUAI-HAI PLAIN BASED ON GIS<br>基于GIS的黄淮海平原土壤盐分分布与管理研究
%A BAI You-lu
%A LI Bao-guo
%A SHI Yuan-chun
%A <br>白由路
%A 李保国
%A 石元春
%J 资源科学
%D 1999
%I 
%X The spatial distribution of soil salt content was s tudied by means of GPS,GIS and Kriging method.The results indicated that non sa line soils,lightly saline soils,moderately saline soils and severely saline soil s cover 80.8%,17.0%,2.2%,and 0.04% of the Huang Huai Hai Plain respectively. T he area with soil salt content lower than 0.1% in a depth of 0 200 cm occupies 75% of the entire plain.The area with surface soil(0 10 cm)free from salinizati on but with salt content over 0.1% under 20 cm of sub layer makes up 7.2%.The r esults also indicated that the extent of salinization in the study area is light er nowadays than that in the past. At present,the salt affected soils in the Hu ang Huai Hai Plain are only distributed on the lower plain along the Bohai Gul f,northern Hengshui in Hebei Province and Nansihu region in Shandong Province.Th e entire plain has been basically free from soil salinization but in the three r egions mentioned above,the prevention and management of soil salinization and se condary salinization is essential in farming practice management. Irrigation sho uld satisfy the crop requirements and leaching soil salts in the regions with so il salt content lower than 0.1% in surface soil and more over the sub layers.
%K Salt
%K affected soil
%K Huang
%K Huai
%K Hai Plain
%K GI S<br>土壤盐分
%K 黄淮海
%K GIS
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=59FC5D27D6227C242A5C6D991217C89C&yid=B914830F5B1D1078&vid=659D3B06EBF534A7&iid=E158A972A605785F&sid=5C3443B19473A746&eid=09ABD5535D9B6D45&journal_id=1007-7588&journal_name=资源科学&referenced_num=10&reference_num=21