江西省适宜种植能源作物的边际土地资源分析及评价

通过调查分析得出江西省宜能边际土地面积131．2万hm^2。，其中冬闲田面积79．1万hm^2，宜能荒地面积52．1万hm^2。摸清了江西省宜能边际土地资源分布状况。对边际土地中的宜能荒地资源进行了单项限制因素等级评价和综合等级评价。全省宜能荒地综合分级结果为：Ⅰ等宜能荒地9．5万hm^2。，Ⅱ等17．2万hm^2，Ⅲ等25．4万hm^2。。在此基础上，提出了开发利用江西省宜能边际土地资源的若干建议。

Analysis and Evaluation of Marginal Land Resource for Planting Energy Crops in Jiangxi Province

Survey analysis indicated that the marginal land area for planting energy crops was 1.312×106 hm2,which included the area of winter free-field 7.91×105 hm2 and the area of wasteland 5.21×105 hm2.And the distributing situation of soil resource for planting energy crops in Jiangxi province was made out,and the single limited factor evaluation and comprehensive evaluation on the wasteland resource of marginal land were made.The results showed that the first class wasteland area was 9.5×104 hm2,second class wasteland area was 1.72×105 hm2,third class wasteland area was 2.54×105 hm2.At the same time,the suggestion on making use of marginal land resource was proposed.