Strategies to achieve agricultural production and biodiversity conservation fall into two categories, land-sparing or land-sharing. Plant species richness under organic arable (land sharing) versus conventional with land set-aside for sparing) was evaluated on adjacent farms compare these strategies. Sampled plant significantly higher than arable, as expected, but very similar set-aside. Nevert...

Aiming at the problems existing in the current use of agricultural water and land resources in China and in order to realize sustainable use of the two resources, we established an indicator system for comprehensive evaluation of agricultural water and land resources carrying capacity based on the Driving forces-Pressures-States-Impacts-Responses (DPSIR) concept framework. Then we took Sanjiang...

Land consolidation is a tool for increasing the area of the arable land and improving the effectiveness of land cultivation. This paper presents a practical system for automatic road extraction in land consolidation to monitor the implementation of the project. The system integrates processing of color image data and information from digital spatial databases, takes into account context informa...

Land consolidation is a tool for increasing the area of the arable land and improving the effectiveness of land cultivation. With the development of high resolution image, the progress of land consolidation project can be monitored by acquiring information from the image objectively. This paper presents a method to extract the wells and roads in land consolidation project from high resolution i...

There is a need to examine long-term changes in nitrogen leaching from arable soils. The purpose of this study was to analyse variations in specific leaching rates (kg ha−1 per year) and gross load (Mg per year) of N from arable land to watercourses in Sweden from a historical perspective. The start of the study was set to 1865 because information on crop distribution, yield and livestock has b...

The continuously-increasing demand for food by a steadily-growing human population has created strong competition between man and animals for certain feedstuffs that can be used by both. Rations used for intensive beef and milk production are largely based on grain, which is the staple food for man in most of the developing countries with a general protein-energy deficiency (Lapedes, 1980). It ...

This study analyzed the determinants of the productivity of smallholder arable crop farmers with a particular focus on land fragmentation using the Simpson Index as measures of land fragmentation in Imo state of Nigeria. Data collected by using structured questionnaire and interview schedules were analyzed using simple descriptive statistics; Simpson index and regression analysis. Results showe...