Since the 1990s, integrated catchment management (ICM) has been promoted as a holistic and integrated approach to water resources management. However, there is evidence to show that the costs and bene

DataCite Commons2022-05-30 更新70

Migration Motivation and Rural society in the 18th Century: from Upper-Rhein to North America

历史移民动因分析

农村社会经济

This investigation deals with the question of local and motivational background of emigration decisions. The investigation starts with the cause question and tests it empirically with an example case

GESIS Data Catalogue110

四川省西昌市2003年农村住户调查主要指标

农村社会经济

人口统计

本数据是四川省西昌市2003年农村住户调查主要指标。统计了四川省西昌市农村住户调查指标，包括有劳动力素质、男女比例，文化构成、识字比例等。

国家林业和草原科学数据中心2007-06-20 更新80