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The response of invertebrate communities to a moisture gradient in artificial soils of Ukrainian steppe arid zone 期刊论文
发表期刊: UKRAINIAN JOURNAL OF ECOLOGY. 出版年: 2020, 卷号: 10, 期号: 6, 页码: 338-350
作者:  Babchenko, A. V.;  Fedushko, M. P.;  Timchiy, E. I.;  Huska, Yu. A.;  Khalus, S. V.
收藏  |  浏览/下载:3/0  |  提交时间:2021/08/05
species response  niche  optima  tolerance  reclamation  gradient  temporal dynamic  
A data envelopment analysis of agricultural technical efficiency of Northwest Arid Areas in China 期刊论文
发表期刊: FRONTIERS OF AGRICULTURAL SCIENCE AND ENGINEERING. 出版年: 2017, 卷号: 4, 期号: 2, 页码: 195-207
作者:  Wang, Yubao;  Shi, Lijie;  Zhang, Haojie;  Sun, Shikun
收藏  |  浏览/下载:3/0  |  提交时间:2021/01/08
agricultural production efficiency  DEA model  input redundancy  irrigation districts  Northwest Arid Areas in China