Land constraints and land speculation both have put pressure on urban expansion through peripheral low-land conversion.
VAC systems are now less common in Vietnam than a few decades ago, due to alternatives for use of animal excreta (i.e. biogas) as well as increasing constraints on land use and increased land costs.
The protection of agricultural surfaces is an important part of such actions, and intervenes through constraints to land use changes i.e. the prohibition to reduce the total surface of the so-called "worth agricultural land"—enacted to safeguard not only agriculture production but also rural landscape.
Pang Kin Keong, Singapore's transport secretary, who heads a government committee on autonomous driving, said: "We face constraints in land and manpower.
This has been created by a perfect-storm scenario: supply constraints, high land values, softened planning, the need to create growth, and overseas investors.
The farmers, therefore, are the founders of human civilisation".This special report has argued that over the next 40 years farmers will find it harder to produce enough for everyone because of constraints on land, water and fertilisers.
The report looks at ways to boost yields of the main crops, considers the constraints of land and water and the use of fertiliser and pesticide, assesses biofuel policies, explains why technology matters so much and examines the impact of recent price rises.
This study enables the Town Hall to create constraints in land use in their Master Plan and other planning instruments to reduce cost increases and the risk of hazards.
Due to rapid industrialization, with high population density and constraints of land, it is expected that level of risks arising from the hazardous industries will increase in India in the coming decades.
