关键词: 紫叶加拿大紫荆, 紫叶加拿大紫荆, 花青苷, 叶绿素, 可溶性糖, 类胡萝卜素

Abstract:

This paper analyzes the history, mechanism and direction of property right system of China’s collective construction land with institution transition theory to make up for the research shortage. The property right of collective construction land is characteristic of ‘equal land, unequal right and value’ in comparison with state-owned construction land. The cost-benefit form of institution supply of state is changing sharply, and state should endow collective ownership equal status, consummate interior collective decision mechanism and usage rights in the context of institution transition requirement. The progress of property right system of collective construction land results from the combined action of institution requirement and supply, and society development results in the variety of institution requirement, at the same time, state has many selection sets benefiting from national demonstration pilot projects to strike balance of supply-requirement of institution.