From 1990 to 1995, New Zealand's average annual forest area increased by 434 square kilometers, recorded as +434 square kilometers, then China's reduction of 886 square kilometers can be recorded as - how many square kilometers
1990--1995年新西兰年均森林面积增长434平方千米，记作+434平方千米，那么中国减少886平方千米可记作-多少平方千米
<result>886</result>