The Measurement and Grading of Pressure on Cultivated Land in City-level in Yunnan Province

云南省州(市)级耕地压力测算及分级（英文）

For a long time pressure on cultivated land receives much concern be- cause of close relationship with food security. In Yunnan provice,natural conditions of mountain area are poor and the overall quality of cultivated land is ：not high. This paper selected state （city） level as research scale,calculated the pressure index on cultivated land of 16 states （cities） in Yunnan provice,revealed the level of tension states （cities） of cultivated land,provided basic basis for determining amount of culti- vated land of provice and states and developing the policy about cultivated land protection.The study indicated that pressure on cultivated land in Dehong belongs to ＂no pressure＂ grade,in Qujing and Baoshan belong to ＂critical pressure ＂grade,in Yuxi and Zhaotong belong to ＂moderate-pressure＂grade,in Kunming and Nujiang be- longs to ＂high-pressure＂ and in the rest 9 states belongs to ＂low-pressure＂grade.

长期以来,耕地压力因与粮食安全联系密切而备受关注。云南省山区自然条件差,耕地总体质量不高。该文选择州(市)级为尺度,测算全省16个州(市)耕地压力指数并进行分级,揭示各州(市)耕地的紧张程度,为合理地确定全省及各州(市)耕地保有量等目标和制定耕地保护策略提供基础依据。研究表明:全省16个州(市)中,只有德宏州属"无压力"级;曲靖市和保山市属"警戒压力"级;玉溪市和昭通市耕地压力达"中压力"级;而昆明市和怒江州耕地压力达到了"高压力"级;其余9个州(市)的耕地压力等级均为"低压力"级。