文档介绍：Shallow Groundwater Vulnerability Assessment in
the Upper and Middle Reaches of the Huai River

ZHANG Dong, HUANG Xing-yu LIU Yun-tao
Institute of resource and environment Institute of first geological engineering
Henan Polytechnic University Bureau of geology and mineral resources of Henan Province
Jiaozuo, China Zhumadian, China
******@hpu.; ******@hpu. liuyuntao19840214@

Abstract—Groundwater vulnerability is basement of evaluating
risk of groundwater contamination and groundwater II. METHOD
vulnerability assessment is one of management methods for
preserving the quality of groundwater. Based on DRASTIC A. Studied area
model and GIS techniques, shallow groundwater vulnerability The studied area covers an area of 1,083 km2, extending
assessment was carried out in Xiangcheng City, China. The from 33°03′15″-33°30′18″N and 114°40′45″-115°03′54″, with
results indicate that the studied area can be divided into three a population of million (Fig. 1). The main crops are wheat,
zone: middle groundwater vulnerability zone (vulnerability index corn, beans, cotton and sesame. The studied area has a semi-
<140) which locates in the south; higher vulnerability zone ℃
(vulnerability indexes 140-160) which locates in the middle-east arid climate with a mean annual temperature of 15 . The
and south; highest groundwater vulnerabilit