References
- Adejuwon , JO and Ekanade , O . 1988 . A comparison of soil properties under different land-use types in a part of the Nigerian cocoa belt . Catena. , 15 : 319 – 331 .
- Andrews , SS and Carroll , CR . 2001 . Designing a soil quality assessment tool for sustainable agroecosystem management . Ecol Appl. , 11 : 1573 – 1585 .
- Andrews , SS , Karlen , DL and Mitchell , JP . 2002 . A comparison of soil quality indexing methods for vegetable production systems in Northern California . Agric Ecosyst Environ. , 90 : 25 – 45 .
- Brejda , JJ , Moorman , TB , Karlen , DL and Dao , TH . 2000 . Identification of regional soil quality factors and indicators. I. Central and southern high plains . Soil Sci Soc Am J. , 64 : 2115 – 2124 .
- Brubaker , SC , Jones , AJ , Lewis , DT and Frank , K . 1993 . Soil properties associated with landscape positions . Soil Sci Soc Am J. , 57 : 235 – 239 .
- Erkossa , T , Itanna , F and Stahr , K . 2007 . Indexing soil quality: a new paradigm in soil science research . Aust J Soil Res. , 45 : 129 – 137 .
- Fu , BJ and Meng , QH . 2004 . Effects of land use on soil erosion and nitrogen loss in the hill area of the loess plateau . Land Degrad Dev. , 15 : 87 – 96 .
- Glanz , JT . 1995 . Saving our soil: solutions for sustaining Earth's vital resource , Boulder, CO : Johnson Books .
- Granatstein , D and Bezdicek , DF . 1992 . The need for a soil quality index: local and regional perspectives . Am J Altern Agric. , 7 : 12 – 16 .
- Herrick , JE . 2000 . Soil quality: an indicator of sustainable land management? . Appl Soil Ecol. , 15 : 75 – 83 .
- Hu , RJ and Fan , ZL . 2001 . Assessment of the impact of climate change on environment in Xinjiang in the last 50 years . Arid Land Geogr. , 24 : 97 – 103 . (in Chinese)
- Karlen , DL and Stott , DE . 1994 . “ A framework for evaluating physical and chemical indicators of soil quality ” . In Defining soil quality for a sustainable environment , Edited by: Doran , JW , Coleman , DC , Bezdicek , DF and Stewart , BA . 53 – 72 . Madison, WI : Soil Science Society of America, Inc . Special publication 35
- Mandal , UK , Warrington , DN , Bhardwaj , AK , Bar-Tal , A , Kautsky , L , Minz , D and Levy , GJ . 2008 . Evaluating impacts of irrigation water quality on a calcareous clay soil using principal component analysis . Geoderma. , 144 : 189 – 197 .
- Mausback , MJ and Seybold , CA . 1998 . “ Assessment of soil quality ” . In Soil quality and sustainability , Edited by: Lal , R . 33 – 43 . Chelsea : Ann Harbor Press .
- Sharmaa , KL and Mandal , UK . 2005 . Long-term soil management effects on crop yields and soil quality in a dryland Alfisol . Soil Tillage Res. , 83 : 246 – 259 .
- Singh , RP , Das , SK , Bhaskara Rao , UM and Narayana Reddy , M . 1990 . “ Towards sustainable dryland agricultural practices, Technical Bulletin ” . 1 – 106 . Hyderabad, , India : Central Research Institute for Dryland Agriculture .
- Wang , JW . 1995 . Oasis, oasis making and oasis construction . J Arid Land Resour Environ. , 9 ( 3 ) : 1 – 12 . (in Chinese)
- Wang , J , Fu , BJ and Qiu , Y . 2003 . Analysis of soil nutrient characteristics for sustainable land use in Danangou catchment of the Loess Plateau, China . Catena , 54 : 17 – 29 .
- Wang , XZ and Ge , JP . 2004 . Dynamic changes of the Qira oasis over a 40-year period . Acta Phytoecol Sin. , 28 ( 3 ) : 369 – 375 . (in Chinese)
- Zheng , JY , Wu , RJ and Zhai , LN . 1996 . Distribution of soil fertility in Zhifang gully watershed of the loess hilly region . Bull Soil Water Conserv. , 16 ( 4 ) : 26 – 30 . (in Chinese)